姚进步准备在2012年元旦之际给老师和几个好朋友送元旦贺卡，他先前了解到每张贺卡2.8元，于是他带着买12张贺卡的钱来到商店．到了商店之后，他发现想买的这种贺卡每张涨了0.7元，请你算一算，姚进步所带的钱现在可以买多少张贺卡？

Yao Jinjin was going to send New Year's Day greeting cards to his teacher and a few good friends on the occasion of New Year's Day in 2012. He had previously learned that each greeting card was 2.8 yuan, so he came to the store with the money to buy 12 greeting cards. After arriving at the store, he found that the greeting cards he wanted to buy had increased by 0.7 yuan each. Please do the math, how many greeting cards can Yao Jinjin buy now with the money he brought?


李佳做种子出芽率实验．20粒玉米种子，有18粒出芽，那么种子的发芽率是多少

Li Jia did an experiment on the germination rate of seeds. Out of 20 corn seeds, 18 germinated, what is the germination rate of the seeds?

<gadget id="calculator">18 / 20</gadget>
<output>9/10 = around 0.9</output>
<gadget id="calculator">100 / 100</gadget>
<output>1</output>
<gadget id="calculator">(9/10) * 1</gadget>
<output>9/10 = around 0.9</output>
<result>9/10 = around 0.9</result>


一批零件中，合格的有276个，不合格的有24个，这批零件的合格率是多少？

In a batch of parts, 276 are qualified and 24 are unqualified. What is the pass rate of this batch of parts?

<gadget id="calculator">276 + 24</gadget>
<output>300</output>
<gadget id="calculator">276 / 300</gadget>
<output>23/25 = around 0.92</output>
<gadget id="calculator">100 / 100</gadget>
<output>1</output>
<gadget id="calculator">(23/25) * 1</gadget>
<output>23/25 = around 0.92</output>
<result>23/25 = around 0.92</result>


红光村修一条水渠，第一周修全长的(1/4)，第二周修余下水渠的(2/5)，第二周比第一周多修了15米．这条水渠全长多少米？

Hongguang Village built a canal, the first week to build the full length (1/4), the second week to build the remaining canal (2/5), the second week was 15 meters longer than the first week. How long is this canal in meters?

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">(3/4) * (2/5)</gadget>
<output>3/10 = around 0.3</output>
<gadget id="calculator">(3/10) - (1/4)</gadget>
<output>1/20 = around 0.05</output>
<gadget id="calculator">45 / (1/20)</gadget>
<output>900</output>
<result>900</result>


学校舞蹈队有男同学18人，女同学22人．彩旗队的人数是舞蹈队的3倍，彩旗队有多少人？

The school dance team has 18 male students and 22 female students. The number of bunting team is 3 times that of dancing team, how many people are there in bunting team?

<gadget id="calculator">18 + 22</gadget>
<output>40</output>
<gadget id="calculator">40 * 3</gadget>
<output>120</output>
<result>120</result>


学校开展植树造林活动，三年级植了140棵树，比五年级少植760棵，四年级植的棵数正好是五年级的4倍，四年级植了多少棵树？

The school carried out afforestation activities. The third grade planted 140 trees, 760 less than the fifth grade, and the fourth grade planted exactly four times the fifth grade. How many trees were planted in the fourth grade?

<gadget id="calculator">140 + 760</gadget>
<output>900</output>
<gadget id="calculator">900 * 4</gadget>
<output>3_600</output>
<result>3_600</result>


将一个圆柱体沿着底面直径切成两个半圆柱，表面积增加了40平方厘米，圆柱的底面直径为4厘米，这个圆柱的体积是多少立方厘米？

A cylinder is cut into two half cylinders along the diameter of the base. The surface area is increased by 40 square centimeters. The diameter of the base of the cylinder is 4 centimeters. What is the volume of the cylinder in cubic centimeters?

<gadget id="calculator">4 / 2</gadget>
<output>2</output>
<gadget id="calculator">2 ** 2</gadget>
<output>4</output>
<gadget id="calculator">40 / 2 / 4</gadget>
<output>5</output>
<gadget id="calculator">3.14 * 4 * 5</gadget>
<output>62.8</output>
<result>62.8</result>


"正柴胡冲剂"的外包装盒是长方体，长为14厘米，宽为7厘米，高为3厘米．做这样一个包装盒至少要纸板多少平方厘米？

The outer packaging box of "Zhengchaihu Granule" is a cuboid with a length of 14 cm, a width of 7 cm, and a height of 3 cm. How many square centimeters of cardboard is at least needed to make such a packaging box?

<gadget id="calculator">14 * 7</gadget>
<output>98</output>
<gadget id="calculator">14 * 3</gadget>
<output>42</output>
<gadget id="calculator">7 * 3</gadget>
<output>21</output>
<gadget id="calculator">98 + 42 + 21</gadget>
<output>161</output>
<gadget id="calculator">161 * 2</gadget>
<output>322</output>
<result>322</result>


有1800辆小汽车要投放到甲、乙、丙三个城市销售，投放到甲城市的汽车是总数的(1/3)，余下的按5：7投放到乙、丙两市．请问乙城市比甲城市少投放汽车多少辆？

There are 1,800 cars to be sold in cities A, B, and C. The number of cars sold in city A is 1/3 of the total, and the rest are distributed in cities B and C at a ratio of 5:7. May I ask how many fewer cars are in city B than in city A?

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">1_800 * (1/3)</gadget>
<output>600</output>
<gadget id="calculator">1_800 - 600</gadget>
<output>1_200</output>
<gadget id="calculator">5 + 7</gadget>
<output>12</output>
<gadget id="calculator">5 / 12</gadget>
<output>5/12 = around 0.416667</output>
<gadget id="calculator">1_200 * (5/12)</gadget>
<output>500</output>
<gadget id="calculator">600 - 500</gadget>
<output>100</output>
<result>100</result>


一个三角形和一个平行四边形等底等面积，如果三角形的高是10厘米，平行四边形的高是多少厘米．

A triangle and a parallelogram have the same base and area. If the height of the triangle is 10 cm, what is the height of the parallelogram in cm?

<gadget id="calculator">10 / 2</gadget>
<output>5</output>
<result>5</result>


小红做一道乘法题时，把因数16看成了19，结果得到的积比正确的积多960，那么正确的积是多少？

When Xiaohong was doing a multiplication problem, she regarded the factor 16 as 19, and the resulting product was 960 more than the correct product. So what is the correct product?

<gadget id="calculator">19 - 16</gadget>
<output>3</output>
<gadget id="calculator">960 / 3</gadget>
<output>320</output>
<gadget id="calculator">320 * 16</gadget>
<output>5_120</output>
<result>5_120</result>


正方形的周长是36厘米，它的面积是多少平方厘米．

If the perimeter of a square is 36 centimeters, what is its area in square centimetres?

<gadget id="calculator">36 / 4</gadget>
<output>9</output>
<gadget id="calculator">9 * 9</gadget>
<output>81</output>
<result>81</result>


两个边长10厘米的正方形，拼成一个大的长方形，大长方形的周长是多少厘米

If two squares with a side length of 10 cm are put together to form a large rectangle, what is the perimeter of the large rectangle in cm?

<gadget id="calculator">10 + 10 + 10</gadget>
<output>30</output>
<gadget id="calculator">30 * 2</gadget>
<output>60</output>
<result>60</result>


在2008年北京奥运会上，中国代表队共获100枚奖牌，其中银牌占(21/100)，铜牌占(7/25)，其余是金牌．共获金牌多少枚？

In the 2008 Beijing Olympic Games, the Chinese team won a total of 100 medals, of which silver medals accounted for (21/100), bronze medals accounted for (7/25), and the rest were gold medals. How many gold medals have you won?

<gadget id="calculator">21 / 100</gadget>
<output>21/100 = around 0.21</output>
<gadget id="calculator">7 / 25</gadget>
<output>7/25 = around 0.28</output>
<gadget id="calculator">1 - (21/100) - (7/25)</gadget>
<output>51/100 = around 0.51</output>
<gadget id="calculator">100 * (51/100)</gadget>
<output>51</output>
<result>51</result>


一个教室长10米，宽6米，用边长5分米的水泥方砖铺地，需要这种水泥方砖多少块？

A classroom is 10 meters long and 6 meters wide, and the floor is paved with cement square bricks with a side length of 5 decimeters. How many cement square bricks are needed?

<gadget id="calculator">5 * 5</gadget>
<output>25</output>
<gadget id="calculator">10 / 25</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">10 * 10 * 6 * (2/5)</gadget>
<output>240</output>
<result>240</result>


一个底边长为5厘米的三角形的面积等于边长为5厘米的正方形的面积，则这个三角形这条底边上的高是多少厘米．

If the area of a triangle with a base of 5 cm is equal to the area of a square with a side of 5 cm, what is the height of the base of the triangle in cm?

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">5 * 5 * (2/5)</gadget>
<output>10</output>
<result>10</result>


从甲地到乙地原来每隔45米要装一根电线杆，加上两端的两根，一共有53根电线杆，现在改成每隔60米装一根电线杆，除两端的两根不需要移动外，中途还有多少根不必移动？

From A to B, a telegraph pole was installed every 45 meters, plus two at both ends, a total of 53 telegraph poles, now changed to a telegraph pole every 60 meters, except for the two at both ends In addition to not needing to be moved, how many roots do not need to be moved in the middle?

<gadget id="calculator">2_340 / 180</gadget>
<output>13</output>
<gadget id="calculator">13 - 1</gadget>
<output>12</output>
<result>12</result>


六年级植树249棵，六年级植树的数量比三年级的3倍多9棵，三年级植树多少棵？(列方程解)

249 trees were planted in the sixth grade. The number of trees planted in the sixth grade was 9 more than that in the third grade. How many trees were planted in the third grade? (Solution of column equation)

<gadget id="calculator">249 - 9</gadget>
<output>240</output>
<gadget id="calculator">240 / 3</gadget>
<output>80</output>
<result>80</result>


甲乙两人从AB两地同时出发散步，第一次在离B地60米处相遇，第二次相遇时距离A地20米，求AB相距多少米？

Two people, A and B, set off from AB for a walk at the same time. The first time they met was 60 meters away from B, and the second time they met, they were 20 meters away from A. How many meters is the distance between AB and AB?

<gadget id="calculator">60 * 3</gadget>
<output>180</output>
<gadget id="calculator">180 - 20</gadget>
<output>160</output>
<result>160</result>


○+□=60，○=□+□+□+□，○=多少

<gadget id="calculator">12 * 4</gadget>
<output>48</output>
<result>48</result>


有一个环形，内圆半径是6分米，外圆半径是10分米，这个环形的面积是多少平方分米．

There is a ring with an inner radius of 6 decimeters and an outer radius of 10 decimeters. What is the area of the ring in square decimeters?

<gadget id="calculator">10 ** 2</gadget>
<output>100</output>
<gadget id="calculator">3.14 * 100</gadget>
<output>314</output>
<gadget id="calculator">6 ** 2</gadget>
<output>36</output>
<gadget id="calculator">3.14 * 36</gadget>
<output>113.04</output>
<gadget id="calculator">314 - 113.04</gadget>
<output>200.96</output>
<result>200.96</result>


小华读一本科技书．每天读23页，读了9天后还有一半没有读．问这本书一共有多少页？

Xiao Hua reads a science book. I read 23 pages a day, and after 9 days, I still haven't read half of them. How many pages does this book have in total?

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">1 - (1/2)</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">9 / (1/2)</gadget>
<output>18</output>
<gadget id="calculator">23 * 18</gadget>
<output>414</output>
<result>414</result>


有两块地共72亩，第一块地的(2/5)和第二块地的(5/9)种西红柿；两块地余下的共39亩种茄子，问第一块地是多少亩？

There are two lands with a total of 72 mu. The first land (2/5) and the second land (5/9) are planted with tomatoes; the remaining 39 mu of the two lands are planted with eggplants. How much is the first land? mu?

<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>
<gadget id="calculator">72 * (5/9)</gadget>
<output>40</output>
<gadget id="calculator">39 - 72</gadget>
<output>-33</output>
<gadget id="calculator">40 + (-33)</gadget>
<output>7</output>
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">(5/9) - (2/5)</gadget>
<output>7/45 = around 0.155556</output>
<gadget id="calculator">7 / (7/45)</gadget>
<output>45</output>
<result>45</result>


一节课40分钟，做实验用去(1/4)小时，讲解例题用去(1/5)小时，其余时间做作业，做作业用了多长时间？

A class is 40 minutes, (1/4) hour is spent doing experiments, (1/5) hour is used to explain sample problems, and the rest of the time is used for homework. How long did it take to do homework?

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">(1/4) + (1/5)</gadget>
<output>9/20 = around 0.45</output>
<gadget id="calculator">(2/3) - (9/20)</gadget>
<output>13/60 = around 0.216667</output>
<result>13/60 = around 0.216667</result>


羽毛球拍每副28.8元，羽毛球每个0.75元，学校计划买10副羽毛球拍和100个羽毛球，一共要花多少元？

Each pair of badminton rackets is 28.8 yuan, and each badminton ball is 0.75 yuan. The school plans to buy 10 pairs of badminton rackets and 100 shuttlecocks. How much will it cost in total?

<gadget id="calculator">28.8 * 10</gadget>
<output>288</output>
<gadget id="calculator">0.75 * 100</gadget>
<output>75</output>
<gadget id="calculator">288 + 75</gadget>
<output>363</output>
<result>363</result>


甲数是9.3比乙数小1.27，甲、乙两数的和是多少？

The number A is 9.3 smaller than the number B by 1.27, what is the sum of the two numbers A and B?

<gadget id="calculator">9.3 + 1.27</gadget>
<output>10.57</output>
<gadget id="calculator">9.3 + 10.57</gadget>
<output>19.87</output>
<result>19.87</result>


有两根都是100厘米长的木条，钉成一根长180厘米长的木条，中间钉在一起的重叠部分是多少厘米．

There are two wooden strips of 100 cm long, and they are nailed into a wooden strip of 180 cm long. What is the overlapping part nailed together in the middle?

<gadget id="calculator">100 * 2</gadget>
<output>200</output>
<gadget id="calculator">200 - 180</gadget>
<output>20</output>
<result>20</result>


一个三角形，如果把它的底和高都增加到原来的2倍，那么面积将增加百分之几？

If the base and height of a triangle are doubled, how much will the area increase?


2006年win7系统带MicrosoftOffice2007软件，惠普笔记本打七五折销售后，现价是7710元，原价是多少元？

In 2006, the win7 system with Microsoft Office 2007 software, after the HP notebook was sold at a 25% discount, the current price is 7710 yuan, how much is the original price?

<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">7_710 / (3/4)</gadget>
<output>10_280</output>
<result>10_280</result>


学校买来180本图书，其中文艺书占(1/3)，科技书占(1/4)，文艺书比科技书多多少本？

The school bought 180 books, of which literature and art books accounted for (1/3) and science and technology books (1/4). How many more literature and art books than science and technology books?

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">(1/3) - (1/4)</gadget>
<output>1/12 = around 0.083333</output>
<gadget id="calculator">180 * (1/12)</gadget>
<output>15</output>
<result>15</result>


If 4a=3b (a, b are natural numbers), then ((a)/3): ((b)/4).


<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>
<gadget id="calculator">(1/9) / 40</gadget>
<output>1/360 = around 0.002778</output>
<gadget id="calculator">72 * (1/360)</gadget>
<output>1/5 = around 0.2</output>
<result>1/5 = around 0.2</result>


如果2是x和5的比例中项，那么x=多少．

If 2 is the middle term in the ratio of x and 5, then x = how much.

<gadget id="calculator">2 * 2</gadget>
<output>4</output>
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>
<result>4/5 = around 0.8</result>


<gadget id="calculator">203 + 197</gadget>
<output>400</output>
<result>400</result>


456减去23除345，结果是多少？

What is the result of subtracting 23 and dividing 345 from 456?

<gadget id="calculator">345 / 23</gadget>
<output>15</output>
<gadget id="calculator">456 - 15</gadget>
<output>441</output>
<result>441</result>


如果小华每天坚持写18个大字，那么她在第二季度共写多少个大字？

If Xiaohua insisted on writing 18 big characters every day, how many big characters did she write in total in the second quarter?

<gadget id="calculator">30 + 31 + 30</gadget>
<output>91</output>
<gadget id="calculator">18 * 91</gadget>
<output>1_638</output>
<result>1_638</result>


小明有21枚邮票，小丽有12枚邮票，小明给小丽多少枚后，小明和小丽邮票数的比是6：5．

Xiaoming has 21 stamps and Xiaoli has 12 stamps. After Xiaoming gives Xiaoli how many stamps, the ratio of the number of stamps between Xiaoming and Xiaoli is 6:5.

<gadget id="calculator">21 + 12</gadget>
<output>33</output>
<gadget id="calculator">6 + 5</gadget>
<output>11</output>
<gadget id="calculator">33 / 11</gadget>
<output>3</output>
<gadget id="calculator">3 * 6</gadget>
<output>18</output>
<gadget id="calculator">33 - 18</gadget>
<output>15</output>
<gadget id="calculator">15 - 12</gadget>
<output>3</output>
<result>3</result>


<gadget id="calculator">87 - 78</gadget>
<output>9</output>
<gadget id="calculator">23 - 9</gadget>
<output>14</output>
<gadget id="calculator">126 / 14</gadget>
<output>9</output>
<result>9</result>


有9个表面涂有红漆的正方体，它们的棱长分别是2，3，4，…，9，10．将这些正方体都锯成棱长是1的小正方体，在得到的小正方体中，至少有一个面是红色的有多少个．

There are 9 cubes painted with red paint, and their edge lengths are 2, 3, 4, ..., 9, 10. Saw these cubes into small cubes with an edge length of 1. How many of the resulting small cubes have at least one face that is red?

<gadget id="calculator">10 ** 3</gadget>
<output>1_000</output>
<gadget id="calculator">9 ** 3</gadget>
<output>729</output>
<gadget id="calculator">1 ** 3</gadget>
<output>1</output>
<gadget id="calculator">729 - 1</gadget>
<output>728</output>
<gadget id="calculator">1_000 + 728</gadget>
<output>1_728</output>
<result>1_728</result>


种一批树，活了96棵，有4棵没活，树的成活率是多少．

Plant a batch of trees, 96 survived, and 4 failed. What is the survival rate of the trees?

<gadget id="calculator">96 + 4</gadget>
<output>100</output>
<gadget id="calculator">96 / 100</gadget>
<output>24/25 = around 0.96</output>
<gadget id="calculator">100 / 100</gadget>
<output>1</output>
<gadget id="calculator">(24/25) * 1</gadget>
<output>24/25 = around 0.96</output>
<result>24/25 = around 0.96</result>


李大伯养了240只鸡，第一天卖出104只，剩下的每8只装一笼，能装满多少笼？

Uncle Li raised 240 chickens and sold 104 chickens on the first day. The remaining 8 chickens were packed into one cage. How many cages can be filled?

<gadget id="calculator">240 - 104</gadget>
<output>136</output>
<gadget id="calculator">136 / 8</gadget>
<output>17</output>
<result>17</result>


一根3米长的长方体木料，把它平均分成2段，表面积增加了4.8平方米，这根木料的体积是多少立方米？

A 3-meter-long cuboid log is divided into two parts equally, and the surface area increases by 4.8 square meters. What is the volume of this log in cubic meters?

<gadget id="calculator">4.8 / 2</gadget>
<output>2.4</output>
<gadget id="calculator">2.4 * 3</gadget>
<output>7.2</output>
<result>7.2</result>


把一根在笔直的跑道旁插了51面彩旗(两端都插)，它们的间隔是2米，这条跑道长多少米．

Insert 51 colorful flags (both ends) on a straight runway. The distance between them is 2 meters. How long is this runway in meters?

<gadget id="calculator">51 - 1</gadget>
<output>50</output>
<gadget id="calculator">2 * 50</gadget>
<output>100</output>
<result>100</result>


从甲到乙，货车要行8个小时，客车要行6个小时．两车分别从甲、乙两地同时相对开出，相遇时货车比客车少行24千米．那么甲、乙相距多少千米？

From A to B, it takes 8 hours for a truck and 6 hours for a bus. Two cars leave from A and B respectively at the same time. When they meet, the truck travels 24 kilometers less than the passenger car. How many kilometers are there between A and B?

<gadget id="calculator">8 + 6</gadget>
<output>14</output>
<gadget id="calculator">8 / 14</gadget>
<output>4/7 = around 0.571429</output>
<gadget id="calculator">6 / 14</gadget>
<output>3/7 = around 0.428571</output>
<gadget id="calculator">(4/7) - (3/7)</gadget>
<output>1/7 = around 0.142857</output>
<gadget id="calculator">24 / (1/7)</gadget>
<output>168</output>
<result>168</result>


一个数的(2/5)正好等于40的(1/4)，这个数是多少．

(2/5) of a number is exactly equal to (1/4) of 40. What is this number?

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">(1/4) / (2/5)</gadget>
<output>5/8 = around 0.625</output>
<gadget id="calculator">40 * (5/8)</gadget>
<output>25</output>
<result>25</result>


一个数是(9/10)，增加它的(1/2)后是多少．

number is (9/10), what is it after adding (1/2) to it.

<gadget id="calculator">9 / 10</gadget>
<output>9/10 = around 0.9</output>
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">1 + (1/2)</gadget>
<output>3/2 = around 1.5</output>
<gadget id="calculator">(9/10) * (3/2)</gadget>
<output>27/20 = around 1.35</output>
<result>27/20 = around 1.35</result>


客车和货车同时从甲乙两地相对开出，客车行完全程需要15小时，货车行完全程需要10小时，两车在途中相遇后，客车又行了96千米，这是客车已行了全程的80%，求甲乙两地相距多少千米？

The passenger car and the truck depart from A and B at the same time. It takes 15 hours for the bus to complete the journey, and 10 hours for the truck to complete the journey. After the two vehicles meet on the way, the bus travels another 96 kilometers. 80%, how many kilometers is the distance between A and B?

<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>
<gadget id="calculator">1 / 15</gadget>
<output>1/15 = around 0.066667</output>
<gadget id="calculator">(1/10) + (1/15)</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">1 / (1/6)</gadget>
<output>6</output>
<gadget id="calculator">6 / 10</gadget>
<output>3/5 = around 0.6</output>
<gadget id="calculator">(4/5) - (3/5)</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">96 / (1/5)</gadget>
<output>480</output>
<result>480</result>


一根铅丝长62.8厘米，把它围成两个大小相等的圆形，这根铅丝可围成的面积有多大？

A lead wire is 62.8 cm long, and it is surrounded by two circles of equal size. How big is the area enclosed by this lead wire?

<gadget id="calculator">62.8 / 2</gadget>
<output>31.4</output>
<gadget id="calculator">31.4 / 3.14 / 2</gadget>
<output>5</output>
<gadget id="calculator">3.14 * 5 * 5</gadget>
<output>78.5</output>
<gadget id="calculator">78.5 * 2</gadget>
<output>157</output>
<result>157</result>


一个长方形长是10，宽是长的一半，它的周长是多少？

A rectangle whose length is 10 and whose width is half its length, what is its perimeter?

<gadget id="calculator">10 / 2</gadget>
<output>5</output>
<gadget id="calculator">10 + 5</gadget>
<output>15</output>
<gadget id="calculator">15 * 2</gadget>
<output>30</output>
<result>30</result>


<gadget id="calculator">12 * 3</gadget>
<output>36</output>
<gadget id="calculator">108 - 36</gadget>
<output>72</output>
<gadget id="calculator">72 / 8</gadget>
<output>9</output>
<result>9</result>


一块梯形水田，上底是10.6米，下底比上底长2.2米，高是5米．如果每平方米喷0.1千克杀虫剂，这块水田需喷多少千克杀虫剂？

A trapezoidal paddy field, the upper base is 10.6 meters, the lower base is 2.2 meters longer than the upper base, and the height is 5 meters. If 0.1 kg of pesticide is sprayed per square meter, how many kilograms of pesticide should be sprayed on this paddy field?

<gadget id="calculator">10.6 + 10.6 + 2.2</gadget>
<output>23.4</output>
<gadget id="calculator">5 / 2</gadget>
<output>5/2 = around 2.5</output>
<gadget id="calculator">23.4 * (5/2) * 0.1</gadget>
<output>5.85</output>
<result>5.85</result>


边长是8分米的正方形纸剪成边长是2分米的正方形，可以剪多少个．

How many pieces of paper can be cut from a square paper with a side length of 8 decimeters into a square with a side length of 2 decimeters?

<gadget id="calculator">2 * 2</gadget>
<output>4</output>
<gadget id="calculator">8 / 4</gadget>
<output>2</output>
<gadget id="calculator">8 * 2</gadget>
<output>16</output>
<result>16</result>


南康小学六年级有100名同学参与了向希望工程捐款的活动．平均每人捐款6.4元，其中男生平均每人捐款7元，女生平均每人捐款6元，男生比女生少多少人？

100 students from the sixth grade of Nankang Primary School participated in the activity of donating to the Hope Project. The average donation per person is 6.4 yuan, of which boys donate an average of 7 yuan per person, and girls donate an average of 6 yuan per person. How many fewer boys than girls?

<gadget id="calculator">6.4 * 100</gadget>
<output>640</output>
<gadget id="calculator">640 - 600</gadget>
<output>40</output>
<gadget id="calculator">100 - 40 - 40</gadget>
<output>20</output>
<result>20</result>


一个三角形的底是22m，面积是17.6m**2，那么高是多少m．

The base of a triangle is 22m, the area is 17.6m**2, what is the height in m?

<gadget id="calculator">2 / 22</gadget>
<output>1/11 = around 0.090909</output>
<gadget id="calculator">17.6 * (1/11)</gadget>
<output>1.6</output>
<result>1.6</result>


一个等腰三角形，底长6分米，腰长7分米，它的周长是多少分米．

An isosceles triangle with a base length of 6 decimeters and a waist length of 7 decimeters, what is its perimeter?

<gadget id="calculator">6 + 7 + 7</gadget>
<output>20</output>
<result>20</result>


把一个长16厘米，宽6厘米，高8厘米的大长方体切成两个小长方体，这两个小长方体的表面积的和最大多少平方厘米．

If a large cuboid with a length of 16 cm, a width of 6 cm and a height of 8 cm is cut into two small cuboids, what is the maximum sum of the surface areas of the two small cuboids?

<gadget id="calculator">16 * 6</gadget>
<output>96</output>
<gadget id="calculator">16 * 8</gadget>
<output>128</output>
<gadget id="calculator">6 * 8</gadget>
<output>48</output>
<gadget id="calculator">96 + 128 + 48</gadget>
<output>272</output>
<gadget id="calculator">272 * 2</gadget>
<output>544</output>
<gadget id="calculator">8 * 16 * 2</gadget>
<output>256</output>
<gadget id="calculator">544 + 256</gadget>
<output>800</output>
<result>800</result>


宏育小学春季植树，成活的有196棵，4棵没有成活，求成活率是多少？

Hongyu Primary School planted trees in spring, 196 trees survived, and 4 trees did not survive. What is the survival rate?

<gadget id="calculator">196 + 4</gadget>
<output>200</output>
<gadget id="calculator">196 / 200</gadget>
<output>49/50 = around 0.98</output>
<gadget id="calculator">100 / 100</gadget>
<output>1</output>
<gadget id="calculator">(49/50) * 1</gadget>
<output>49/50 = around 0.98</output>
<result>49/50 = around 0.98</result>


两个表面积都是6平方分米的正方体拼成一个长方体，它的表面积是多少．

If two cubes with the surface area of 6 square decimeters are put together to form a cuboid, what is its surface area?

<gadget id="calculator">6 * 10</gadget>
<output>60</output>
<result>60</result>


六年级参加合唱队的女生的(1/2)与男生的(1/3)共13人，男生的(1/2)与女生的(1/3)共12人．参加合唱队的女生有多少人？

There are 13 girls (1/2) and boys (1/3) participating in the sixth grade chorus, and 12 boys (1/2) and girls (1/3). How many girls are there in the chorus?

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">39 * (1/2)</gadget>
<output>39/2 = around 19.5</output>
<gadget id="calculator">(39/2) - 12</gadget>
<output>15/2 = around 7.5</output>
<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>
<gadget id="calculator">(3/2) * (1/2)</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">(3/4) - (1/3)</gadget>
<output>5/12 = around 0.416667</output>
<gadget id="calculator">(15/2) / (5/12)</gadget>
<output>18</output>
<result>18</result>


甲数的(1/3)与乙数的(1/4)相等．如果甲数是90，则乙数是多少．

(1/3) of number A is equal to (1/4) of number B. If the number A is 90, what is the number B?

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">(1/3) / (1/4)</gadget>
<output>4/3 = around 1.333333</output>
<gadget id="calculator">90 * (4/3)</gadget>
<output>120</output>
<result>120</result>


收入超过3000元，不足5000元，超出的部分要按照3%的税率缴纳个人所得税．小军爸爸每月的工资是3800元，他每个月要缴纳个人所得税多少元？

If the income exceeds 3,000 yuan and is less than 5,000 yuan, the excess part shall be subject to personal income tax at a rate of 3%. Xiaojun's father's monthly salary is 3,800 yuan. How much personal income tax does he have to pay every month?

<gadget id="calculator">3_800 - 3_000</gadget>
<output>800</output>
<gadget id="calculator">3 / 100</gadget>
<output>3/100 = around 0.03</output>
<gadget id="calculator">800 * (3/100)</gadget>
<output>24</output>
<result>24</result>


小红家距学校600米，从家经少年宫再到学校要走4800米．小红从家到学校走了15分钟，她用同样的速度从家经少年宫再到学校，一共要用多少分钟？

Xiaohong's home is 600 meters away from the school, and it takes 4,800 meters to walk from her home through the Children's Palace to the school. Xiaohong walked from home to school for 15 minutes. How many minutes would it take her to go from home via the Children's Palace to school at the same speed?

<gadget id="calculator">600 / 15</gadget>
<output>40</output>
<gadget id="calculator">4_800 / 40</gadget>
<output>120</output>
<result>120</result>


一只河马的体重是150吨，是一头水牛体重的15倍．这只河马比这头水牛重多少吨？

A hippopotamus weighs 150 tons, which is 15 times the weight of a buffalo. How many tons does this hippo weigh more than this buffalo?

<gadget id="calculator">150 / 15</gadget>
<output>10</output>
<gadget id="calculator">150 - 10</gadget>
<output>140</output>
<result>140</result>


一个长方形的宽是60厘米，长比宽多12厘米，周长是多少厘米．

The width of a rectangle is 60 cm, and the length is 12 cm longer than the width, what is the circumference in cm?

<gadget id="calculator">60 + 12</gadget>
<output>72</output>
<gadget id="calculator">72 + 60</gadget>
<output>132</output>
<gadget id="calculator">132 * 2</gadget>
<output>264</output>
<result>264</result>


一个三角形，直角边分别是3厘米、4厘米，斜边是5厘米，如果以较长的直角边为轴旋转，会形成什么图形？它的体积是多少立方厘米？

A triangle, the right-angled sides are 3 cm and 4 cm respectively, and the hypotenuse is 5 cm, if it is rotated around the longer right-angled side as the axis, what figure will it form? What is its volume in cubic centimeters?

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">3 ** 2</gadget>
<output>9</output>
<gadget id="calculator">(1/3) * 3.14 * 9 * 4</gadget>
<output>37.68</output>
<result>37.68</result>


张亮帮妈妈从果园里摘了一些苹果，每28个装一箱，装了7箱，还有48个苹果没有装入纸箱．他们一共摘了多少个苹果？

Zhang Liang helped his mother pick some apples from the orchard, and packed 28 apples into a box, 7 boxes were packed, and 48 apples were not packed into the carton. How many apples did they pick in total?

<gadget id="calculator">28 * 7</gadget>
<output>196</output>
<gadget id="calculator">196 + 48</gadget>
<output>244</output>
<result>244</result>


一根电线，第一次截去60米，第二次截去80米．两次截去了全长的(2/7)．这根电线全长多少米？

wire, cut 60 meters for the first time, and 80 meters for the second time. Twice cut off the full length (2/7). How long is this wire in meters?

<gadget id="calculator">60 + 80</gadget>
<output>140</output>
<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>
<gadget id="calculator">140 / (2/7)</gadget>
<output>490</output>
<result>490</result>


14.5乘多少的数，所得的积比14.5小．

When 14.5 is multiplied by any number, the resulting product is smaller than 14.5.


妈妈买回来苹果和梨各8千克，每千克苹果4元，每千克梨3元，共花去多少元？(用两种方法解答)

Mom bought 8 kilograms of apples and 8 kilograms of pears, 4 yuan per kilogram of apples, and 3 yuan per kilogram of pears. How much did you spend in total? (answer in two ways)

<gadget id="calculator">4 * 8</gadget>
<output>32</output>
<gadget id="calculator">3 * 8</gadget>
<output>24</output>
<gadget id="calculator">32 + 24</gadget>
<output>56</output>
<result>56</result>


一份稿件，甲乙两人共同用电脑打需要6小时，如果甲的工作效率是乙的(5/6)，那么乙单独打这份稿件，需要几小时完成？

It takes 6 hours for A and B to type a manuscript together on a computer. If A’s work efficiency is 5/6 that of B’s, how many hours will it take for B to type this manuscript alone?

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>
<gadget id="calculator">(5/6) + 1</gadget>
<output>11/6 = around 1.833333</output>
<gadget id="calculator">(1/6) / (11/6)</gadget>
<output>1/11 = around 0.090909</output>
<gadget id="calculator">1 / (1/11)</gadget>
<output>11</output>
<result>11</result>


第一层书架放有89本书，比第二层少放了16本，第三层书架上放有的书是一、二两层和的1.5倍，第三层放有多少本书？

There are 89 books on the first shelf, 16 less than on the second shelf. The number of books on the third shelf is 1.5 times the sum of the first and second floors. How many books are there on the third floor?

<gadget id="calculator">89 + 16 + 89</gadget>
<output>194</output>
<gadget id="calculator">194 * 1.5</gadget>
<output>291</output>
<result>291</result>


五年级第七小组同学的身高分别为140厘米、142厘米、138厘米、143厘米、147厘米，他们5人的平均身高是多少厘米．

The heights of the students in the seventh group of the fifth grade are 140 cm, 142 cm, 138 cm, 143 cm, and 147 cm respectively. What is the average height of the five of them in cm?

<gadget id="calculator">140 + 142 + 138 + 143 + 147</gadget>
<output>710</output>
<gadget id="calculator">710 / 5</gadget>
<output>142</output>
<result>142</result>


学校买来50套课桌椅，共用去4500元．已知每张桌子48元，每把椅子多少元？

The school bought 50 sets of desks and chairs and shared them for 4,500 yuan. It is known that each table is 48 yuan, how much is each chair?

<gadget id="calculator">4_500 / 50</gadget>
<output>90</output>
<gadget id="calculator">90 - 48</gadget>
<output>42</output>
<result>42</result>


四年级学生排成方阵做操最外层有40名学生．这个方阵共有学生多少人？

The fourth grade students are arranged in a square array to do exercises, and there are 40 students in the outermost layer. How many students are there in this phalanx?

<gadget id="calculator">40 / 4</gadget>
<output>10</output>
<gadget id="calculator">10 + 1</gadget>
<output>11</output>
<gadget id="calculator">11 * 11</gadget>
<output>121</output>
<result>121</result>


把110厘米长的铁丝焊成一个长方体框架，长是宽的2倍，宽是高的1.5倍，这个长方体的体积是多少？

110 cm long iron wire is welded into a cuboid frame, the length is twice the width, and the width is 1.5 times the height. What is the volume of the cuboid?

<gadget id="calculator">110 / 4</gadget>
<output>55/2 = around 27.5</output>
<gadget id="calculator">1 + 1.5 + 3</gadget>
<output>5.5</output>
<gadget id="calculator">(55/2) / 5.5</gadget>
<output>5</output>
<gadget id="calculator">1.5 * 5 * 2 * 1.5 * 5 * 5</gadget>
<output>562.5</output>
<result>562.5</result>


一共有240千克水果糖，每袋装(1/4)kg．他们才装完了(3/4)．他们已经装完了多少袋？

A total of 240 kg of fruit sugar, each bag (1/4) kg. They just finished loading (3/4). How many bags have they filled?

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">240 / (1/4)</gadget>
<output>960</output>
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">960 * (3/4)</gadget>
<output>720</output>
<result>720</result>


学校自来水管直径6厘米，水流速度为每秒2米，张军洗完手后，忘记关自来水龙头，那么5分钟后，浪费了多少升的水？

The diameter of the school water pipe is 6 cm, and the water flow speed is 2 meters per second. After Zhang Jun washed his hands, he forgot to turn off the tap. How many liters of water was wasted after 5 minutes?

<gadget id="calculator">6 / 2</gadget>
<output>3</output>
<gadget id="calculator">3 ** 2</gadget>
<output>9</output>
<gadget id="calculator">2 * 100 * 5 * 60</gadget>
<output>60_000</output>
<gadget id="calculator">60_000 / 1_000</gadget>
<output>60</output>
<gadget id="calculator">3.14 * 9 * 60</gadget>
<output>1_695.6</output>
<result>1_695.6</result>


北京路小学计划买一些课桌椅，这笔钱如果单买课桌，可以买80张，如果单买椅子，可以买240把，这笔钱可以买几套这样的课桌椅？

Beijing Road Primary School plans to buy some desks and chairs. If you buy only desks with this money, you can buy 80 desks. If you buy chairs alone, you can buy 240 desks and chairs. How many sets of such desks and chairs can you buy with this money?

<gadget id="calculator">1 / 80</gadget>
<output>1/80 = around 0.0125</output>
<gadget id="calculator">1 / 240</gadget>
<output>1/240 = around 0.004167</output>
<gadget id="calculator">(1/80) + (1/240)</gadget>
<output>1/60 = around 0.016667</output>
<gadget id="calculator">1 / (1/60)</gadget>
<output>60</output>
<result>60</result>


把3个棱长相等正方体拼成一个长方体后，表面积减少了100平方厘米，这个长方体的体积是多少立方厘米？

After assembling three cubes of equal edge length into a cuboid, the surface area is reduced by 100 square centimeters. What is the volume of this cuboid?


李叔叔在银行存了一笔钱，定期5年，如果年利率是3.60%，到期时除了本金以后，他还可以得到税后利息720元．他存的这笔钱有多少元？

Uncle Li deposited a sum of money in the bank for 5 years. If the annual interest rate is 3.60%, he can get an after-tax interest of 720 yuan in addition to the principal when it matures. How much money did he save?

<gadget id="calculator">3.6 / 100</gadget>
<output>0.036</output>
<gadget id="calculator">0.036 * 5</gadget>
<output>0.18</output>
<gadget id="calculator">720 / 0.18</gadget>
<output>4_000</output>
<result>4_000</result>


甲数是25，是乙数的(5/7)．乙数是多少．

A's number is 25, which is B's (5/7). What is the number B.

<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>
<gadget id="calculator">25 / (5/7)</gadget>
<output>35</output>
<result>35</result>


一个三角形的面积是14.5平方厘米，与它等底等高的平行四边形的面积是多少．

If the area of a triangle is 14.5 square centimeters, what is the area of a parallelogram with the same base and height?

<gadget id="calculator">14.5 * 2</gadget>
<output>29</output>
<result>29</result>


学校举行跳绳比赛，分成3组，每组6队，一共有360人参加比赛，平均每个队有多少人．

The school holds a rope skipping competition, which is divided into 3 groups, 6 teams in each group, a total of 360 people participated in the competition, how many people are there on average in each team.

<gadget id="calculator">360 / 3 / 6</gadget>
<output>20</output>
<result>20</result>


一条铁路已经修了它的(1/5)，再修300千米就能修好这条铁路的一半．这条铁路全长多少千米？

(1/5) of a railway has been repaired, and half of the railway can be repaired by repairing another 300 kilometers. How long is this railway in kilometers?

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">(1/2) - (1/5)</gadget>
<output>3/10 = around 0.3</output>
<gadget id="calculator">300 / (3/10)</gadget>
<output>1_000</output>
<result>1_000</result>


把1米长的铁丝平均分成4段，每段比原来铁丝总长短多少米

Divide a 1-meter-long iron wire into 4 sections on average, how many meters is each section shorter than the total length of the original iron wire

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>
<result>3/4 = around 0.75</result>


某化工厂女工人数占全厂人数的(2/7)，男工人数比女工人数多几分之几？

The number of female workers in a certain chemical factory accounts for 2/7 of the total number of workers in the factory. By what percentage is the number of male workers more than the number of female workers?

<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>
<gadget id="calculator">1 - (2/7) - (2/7)</gadget>
<output>3/7 = around 0.428571</output>
<gadget id="calculator">(3/7) / (2/7)</gadget>
<output>3/2 = around 1.5</output>
<result>3/2 = around 1.5</result>


同学们排队做操，如果每行站25人，需要站36行；如果每行站30人，需要站多少行？

Students line up to do exercises. If there are 25 people standing in each row, you need to stand in 36 rows; if you stand in a row with 30 people, how many rows do you need to stand in?

<gadget id="calculator">36 / 30</gadget>
<output>6/5 = around 1.2</output>
<gadget id="calculator">25 * (6/5)</gadget>
<output>30</output>
<result>30</result>


电视机厂九月份生产3000台，十月份比九月增产(1/6)．十月份增产多少台？

The TV factory produced 3,000 sets in September, and the production in October increased (1/6) compared to September. How many units will be increased in October?

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">3_000 * (1/6)</gadget>
<output>500</output>
<result>500</result>


广场花台摆了31排花，每排28盆，花台一共摆了大约多少盆花．

There are 31 rows of flowers on the square flower table, with 28 pots in each row. About how many pots of flowers are placed on the flower table.

<gadget id="calculator">30 * 30</gadget>
<output>900</output>
<result>900</result>


体育课上，六年级同学围成三圈做韵律操，外面每一圈依次比里面一圈多(1/4)，中间一圈有20人，六年级一共有多少同学在做韵律操？

In the physical education class, the sixth grade students form three circles to do aerobics. Each outer circle is more (1/4) than the inner circle, and there are 20 people in the middle circle. How many sixth graders are doing aerobics?

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>
<gadget id="calculator">20 * (5/4)</gadget>
<output>25</output>
<gadget id="calculator">20 / (5/4)</gadget>
<output>16</output>
<gadget id="calculator">20 + 25 + 16</gadget>
<output>61</output>
<result>61</result>


小马虎在计算一道乘法时，把其中一个因数21看成12，结果得到的积比正确的积少了360，你知道正确的积是多少吗？

When the little sloppy was calculating a multiplication, he regarded one of the factors, 21, as 12. The resulting product was 360 less than the correct product. Do you know what the correct product is?

<gadget id="calculator">21 - 12</gadget>
<output>9</output>
<gadget id="calculator">360 / 9</gadget>
<output>40</output>
<gadget id="calculator">40 * 21</gadget>
<output>840</output>
<result>840</result>


在一次科学知识抢答赛中，小红抢答了9道题，根据答对一题获10分，答错一题扣8分的规定，小红最后得分是18分，她答对了多少题？

In a scientific knowledge quiz, Xiaohong answered 9 questions quickly. According to the regulation that she gets 10 points for a correct answer and 8 points for a wrong answer, Xiaohong's final score is 18 points. How many questions did she answer correctly?

<gadget id="calculator">9 * 10</gadget>
<output>90</output>
<gadget id="calculator">90 - 18</gadget>
<output>72</output>
<gadget id="calculator">10 + 8</gadget>
<output>18</output>
<gadget id="calculator">72 / 18</gadget>
<output>4</output>
<gadget id="calculator">9 - 4</gadget>
<output>5</output>
<result>5</result>


<gadget id="calculator">102 - 4</gadget>
<output>98</output>
<gadget id="calculator">98 / 0.7</gadget>
<output>140</output>
<result>140</result>


大雁平均每分钟飞行889米，燕子平均每分钟飞行645米．同时起飞15分钟后，大雁比燕子多飞多少米？

Wild geese fly an average of 889 meters per minute, and swallows fly an average of 645 meters per minute. After taking off for 15 minutes at the same time, how many meters did the geese fly more than the swallows?

<gadget id="calculator">889 - 645</gadget>
<output>244</output>
<gadget id="calculator">244 * 15</gadget>
<output>3_660</output>
<result>3_660</result>


上海市的士车费是这样规定的：3千米以内为起步价8元；超过3千米的，超过部分在4千米以内，每千米1.4元；超过4千米的部分每千米2.1元．某人某次搭的士的车费为22元，他搭的士走了多少米？

Taxi fares in Shanghai are stipulated as follows: within 3 kilometers, the starting fare is 8 yuan; for more than 3 kilometers, the excess part is within 4 kilometers, 1.4 yuan per kilometer; for the part exceeding 4 kilometers, per kilometer 2.1 yuan. Someone took a taxi for a fare of 22 yuan, how many meters did he travel by taxi?

<gadget id="calculator">1.4 * 4</gadget>
<output>5.6</output>
<gadget id="calculator">22 - 8 - 5.6</gadget>
<output>8.4</output>
<gadget id="calculator">8.4 / 2.1</gadget>
<output>4</output>
<gadget id="calculator">3 + 4</gadget>
<output>7</output>
<gadget id="calculator">4 + 7</gadget>
<output>11</output>
<result>11</result>


列式计算：79.54减去16.5与3.2的积，结果是多少？

Column calculation: 79.54 minus the product of 16.5 and 3.2, what is the result?

<gadget id="calculator">16.5 * 3.2</gadget>
<output>52.8</output>
<gadget id="calculator">79.54 - 52.8</gadget>
<output>26.74</output>
<result>26.74</result>


王老师到书店买书，她带的钱正好可以买30本画报或15本故事书．如果两种书买同样多，那么各可以买多少本？

Teacher Wang went to the bookstore to buy books, and the money she brought was just enough to buy 30 pictorials or 15 story books. If you buy the same amount of two books, how many copies can you buy for each?

<gadget id="calculator">1 / 30</gadget>
<output>1/30 = around 0.033333</output>
<gadget id="calculator">1 / 15</gadget>
<output>1/15 = around 0.066667</output>
<gadget id="calculator">(1/30) + (1/15)</gadget>
<output>1/10 = around 0.1</output>
<gadget id="calculator">1 / (1/10)</gadget>
<output>10</output>
<result>10</result>


甲种糖每千克8元，乙种糖每千克12元，用多少千克甲种糖和9千克乙种糖混合，才能使平均每千克糖的价钱为11元．

Type A sugar is 8 yuan per kilogram, and type B sugar is 12 yuan per kilogram. How many kilograms of sugar A and 9 kilograms of sugar B are mixed to make the average price per kilogram of sugar 11 yuan.

<gadget id="calculator">12 * 9</gadget>
<output>108</output>
<gadget id="calculator">9 * 11</gadget>
<output>99</output>
<gadget id="calculator">108 - 99</gadget>
<output>9</output>
<gadget id="calculator">11 - 8</gadget>
<output>3</output>
<gadget id="calculator">9 / 3</gadget>
<output>3</output>
<result>3</result>


<gadget id="calculator">2 / 1</gadget>
<output>2</output>
<gadget id="calculator">3 / 1</gadget>
<output>3</output>
<gadget id="calculator">4 / 1</gadget>
<output>4</output>
<gadget id="calculator">5 / 1</gadget>
<output>5</output>
<gadget id="calculator">1 + 2 + 3 + 4 + 5</gadget>
<output>15</output>
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">(1/2) + (1/3) + (1/4) + (1/5)</gadget>
<output>77/60 = around 1.283333</output>
<gadget id="calculator">(1/6) - (77/60)</gadget>
<output>-67/60 = around -1.116667</output>
<gadget id="calculator">(1/2) + (1/3) + (1/4) + (1/5) + (-67/60)</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">1 / (1/6)</gadget>
<output>6</output>
<gadget id="calculator">2 + 3 + 4 + 5 + 6</gadget>
<output>20</output>
<gadget id="calculator">15 * 20</gadget>
<output>300</output>
<gadget id="calculator">1 + 2 + 3 + 4 + 5 + 6</gadget>
<output>21</output>
<gadget id="calculator">2 + 3 + 4 + 5</gadget>
<output>14</output>
<gadget id="calculator">21 * 14</gadget>
<output>294</output>
<gadget id="calculator">300 - 294</gadget>
<output>6</output>
<result>1/6 = around 0.166667</result>


小松鼠和妈妈一起摘松果，妈妈摘了56个，是小松鼠的4倍．小松鼠摘了几个？

The little squirrel picked pine cones with its mother, and the mother picked 56 pine cones, four times that of the little squirrel. How many did the little squirrel pick?

<gadget id="calculator">56 / 4</gadget>
<output>14</output>
<result>14</result>


周明到商店买2支水笔用了7.8元，买一个垫板用了1.2元，他付了10元，该找回多少元？

Zhou Ming went to the store to buy 2 fountain pens and spent 7.8 yuan, and bought a pad for 1.2 yuan. He paid 10 yuan, how much should he get back?

<gadget id="calculator">7.8 + 1.2</gadget>
<output>9</output>
<gadget id="calculator">10 - 9</gadget>
<output>1</output>
<result>1</result>


一根绳子，第一天减下它的一半零2米，第二天，减下余下的一半少2米，第三天再减去余下的一半零2米，正好还余下2米，这根绳子原有多少米？

rope, subtract half of it and 2 meters on the first day, subtract the remaining half and 2 meters on the second day, and subtract the remaining half and 2 meters on the third day, and there are exactly 2 meters left. How many meters was the rope originally?

<gadget id="calculator">2 + 2</gadget>
<output>4</output>
<gadget id="calculator">4 * 2</gadget>
<output>8</output>
<gadget id="calculator">8 - 2</gadget>
<output>6</output>
<gadget id="calculator">6 * 2</gadget>
<output>12</output>
<gadget id="calculator">12 + 2</gadget>
<output>14</output>
<gadget id="calculator">14 * 2</gadget>
<output>28</output>
<result>28</result>


一架天平的左边秤里放着一包水果糖，右边秤盘里放着(2/3)包同样的水果糖和100克砝码，这时天平平衡，问一包水果糖重多少克？

A bag of fruit candy is placed in the left scale of a balance, and (2/3) the same bag of fruit candy and a weight of 100 grams are placed in the right weighing pan. At this time, the balance is balanced. How many grams does a bag of fruit candy weigh?

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>
<gadget id="calculator">1 - (2/3)</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">100 / (1/3)</gadget>
<output>300</output>
<result>300</result>


某粮店有一批大米，计划每天销售0.5吨，24天售完．实际20天就售完了，实际每天多销售多少吨？

There is a batch of rice in a grain store, and it is planned to sell 0.5 tons per day, and it will be sold out within 24 days. It was actually sold out in 20 days. How many tons were actually sold per day?

<gadget id="calculator">0.5 / 20</gadget>
<output>0.025</output>
<gadget id="calculator">24 * 0.025</gadget>
<output>0.6</output>
<gadget id="calculator">0.6 - 0.5</gadget>
<output>0.1</output>
<result>0.1</result>


学校新建一间教室，利用原有旧桌椅35套，现在又用2100元购买新桌椅，配齐50套，每套新桌椅多少元？

The school builds a new classroom and uses 35 sets of old desks and chairs. Now it spends 2100 yuan to buy new desks and chairs. It is equipped with 50 sets. How much is each set of new desks and chairs?

<gadget id="calculator">50 - 35</gadget>
<output>15</output>
<gadget id="calculator">2_100 / 15</gadget>
<output>140</output>
<result>140</result>


<gadget id="calculator">7 / 8</gadget>
<output>7/8 = around 0.875</output>
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>
<gadget id="calculator">(3/4) - (5/6)</gadget>
<output>-1/12 = around -0.083333</output>
<gadget id="calculator">(7/8) + (-1/12)</gadget>
<output>19/24 = around 0.791667</output>
<gadget id="calculator">24 * (19/24)</gadget>
<output>19</output>
<result>19</result>


两地相距384千米，甲乙两车相对开出，甲车每小时行48千米，乙车每小时行42千米，甲车开出24千米后，乙车才出发，再过几小时两车相遇？

The distance between the two places is 384 kilometers. Cars A and B are driving opposite each other. Car A travels 48 kilometers per hour, and car B travels 42 kilometers per hour. Car B will start after A has traveled 24 kilometers. It will take a few hours Two cars meet?

<gadget id="calculator">384 - 24</gadget>
<output>360</output>
<gadget id="calculator">48 + 42</gadget>
<output>90</output>
<gadget id="calculator">360 / 90</gadget>
<output>4</output>
<result>4</result>


玻璃厂九月份生产玻璃1200箱，十月份比九月份少生产(1/5)，十月份生产玻璃多少箱？

The glass factory produced 1200 boxes of glass in September, and the production in October was less than September (1/5). How many boxes of glass were produced in October?

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">1_200 * (4/5)</gadget>
<output>960</output>
<result>960</result>


四年级同学参加学校举行的运动会，参加了百米跑、跳高、跳远这三个项目．参加百米跑的有24人，参加跳高的有28人，参加跳远的有26人；既参加百米跑又参加跳高的有12人，既参加跳高又参加跳远的有9人，既参加百米跑又参加跳远的有14人；三项都参加的有5人．四年级同学参加运动会比赛的共有多少人．

The fourth grade students participated in the sports meeting held by the school and participated in the three events of 100-meter run, high jump and long jump. 24 people participated in the 100-meter race, 28 people participated in the high jump, and 26 people participated in the long jump; 12 people participated in both the 100-meter race and the high jump, and 9 people participated in both the high jump and the long jump. There are 14 people who participated in the meter race and long jump; 5 people participated in all three events. How many fourth graders participated in the sports meeting?

<gadget id="calculator">26 - 12 - 9 - 14</gadget>
<output>-9</output>
<gadget id="calculator">24 + 28 + (-9) + 5</gadget>
<output>48</output>
<result>48</result>


一份稿件，甲、乙合打4小时可完成全部稿件，乙、丙合打5小时可完成全部稿件，甲、丙合打6小时可完成全部稿件，如果甲、乙、丙三人同时合打全部稿件需要几小时？

For one manuscript, A and B can complete the entire manuscript in 4 hours, B and C can complete the entire manuscript in 5 hours, and A and C can complete the entire manuscript in 6 hours. If A, B, and C work together at the same time How many hours does it take to type all manuscripts?

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">(1/4) + (1/5) + (1/6)</gadget>
<output>37/60 = around 0.616667</output>
<gadget id="calculator">(37/60) / 2</gadget>
<output>37/120 = around 0.308333</output>
<gadget id="calculator">1 / (37/120)</gadget>
<output>120/37 = around 3.243243</output>
<result>120/37 = around 3.243243</result>


一种电磁炉，现在每台320元，比原价降低了20%，降低了多少元？

An induction cooker costs 320 yuan each, which is 20% lower than the original price. How much is the reduction?

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">320 / (4/5)</gadget>
<output>400</output>
<gadget id="calculator">400 - 320</gadget>
<output>80</output>
<result>80</result>


<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>
<gadget id="calculator">16 / 3</gadget>
<output>16/3 = around 5.333333</output>
<gadget id="calculator">(1/8) * (16/3)</gadget>
<output>2/3 = around 0.666667</output>
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">(2/3) / (3/4)</gadget>
<output>8/9 = around 0.888889</output>
<result>8/9 = around 0.888889</result>


What is the solution of the equation 0.25x=100.

<gadget id="calculator">100 / 0.25</gadget>
<output>400</output>
<result>400</result>


一个长方体纸箱，长为8分米，宽为6分米，高为5分米，它的所有棱长和是多少分米．

A cuboid carton has a length of 8 decimeters, a width of 6 decimeters, and a height of 5 decimeters. What is the sum of the lengths of all its sides?

<gadget id="calculator">8 + 6 + 5</gadget>
<output>19</output>
<gadget id="calculator">19 * 4</gadget>
<output>76</output>
<result>76</result>


小红从一个长40厘米、宽28厘米的长方形纸上剪下一个最大的正方形，剩下部分的面积是多少平方厘米．

Xiaohong cuts out the largest square from a rectangular paper with a length of 40 cm and a width of 28 cm. What is the area of the remaining part in square centimeters?

<gadget id="calculator">40 * 28</gadget>
<output>1_120</output>
<gadget id="calculator">28 * 28</gadget>
<output>784</output>
<gadget id="calculator">1_120 - 784</gadget>
<output>336</output>
<result>336</result>


一项工程，甲队单独做10天完成，乙队单独做15天完成，甲、乙两队一起做多少天完成．

A project can be completed by team A alone in 10 days, and team B alone in 15 days. How many days will team A and team B work together to complete it?

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>
<gadget id="calculator">1 / 15</gadget>
<output>1/15 = around 0.066667</output>
<gadget id="calculator">(1/10) + (1/15)</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">1 / (1/6)</gadget>
<output>6</output>
<result>6</result>


<gadget id="calculator">2.1 - 1</gadget>
<output>1.1</output>
<gadget id="calculator">3.52 / 1.1</gadget>
<output>3.2</output>
<result>3.2</result>


两数相除，商4余8，被除数、除数、商数、余数四数之和等于415，则被除数是多少．

When two numbers are divided, the quotient is 4 with a remainder of 8, and the sum of the dividend, divisor, quotient, and remainder is equal to 415, what is the dividend?

<gadget id="calculator">415 - 8 - 4 - 8</gadget>
<output>395</output>
<gadget id="calculator">4 + 1</gadget>
<output>5</output>
<gadget id="calculator">395 / 5</gadget>
<output>79</output>
<gadget id="calculator">4 * 79</gadget>
<output>316</output>
<gadget id="calculator">316 + 8</gadget>
<output>324</output>
<result>324</result>


一条路长10千米，第一次修(1/4)，第二次修了(1/4)千米，还剩多少千米．

A road is 10 kilometers long, the first repair (1/4), the second repair (1/4) kilometers, how many kilometers are left.

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">10 * (3/4)</gadget>
<output>15/2 = around 7.5</output>
<gadget id="calculator">(15/2) - (1/4)</gadget>
<output>29/4 = around 7.25</output>
<result>29/4 = around 7.25</result>


陈科在暑假期间送《江淮晨报》．他每天送120份，共送了31天．每送1份可得报酬1角钱，他把所得的报酬全部捐给了希望工程．他共捐了多少元钱？

Chen Ke sent "Jianghuai Morning News" during the summer vacation. He sent 120 copies every day for a total of 31 days. He can get 1 dime for every gift, and he donated all the rewards to the Hope Project. How much did he donate in total?

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>
<gadget id="calculator">120 * 31 * (1/10)</gadget>
<output>372</output>
<result>372</result>


7千克油菜籽可榨3千克菜籽油，那么，榨1千克菜籽油需要多少千克油菜籽．

3 kg of rapeseed oil can be squeezed from 7 kg of rapeseed, so how many kg of rapeseed is needed to squeeze 1 kg of rapeseed oil.

<gadget id="calculator">7 / 3</gadget>
<output>7/3 = around 2.333333</output>
<result>7/3 = around 2.333333</result>


一个数的6倍是60，这个数的8倍是多少．

If 6 times of a number is 60, what is the 8 times of this number?

<gadget id="calculator">60 / 6</gadget>
<output>10</output>
<gadget id="calculator">10 * 8</gadget>
<output>80</output>
<result>80</result>


足球兴趣小组有12人，篮球兴趣小组的人数是足球兴趣小组的10倍，篮球兴趣小组平均分成6个小队，每个小队有多少人？

There are 12 people in the football interest group. The number of people in the basketball interest group is 10 times that of the football interest group. The basketball interest group is divided into 6 teams on average. How many people are there in each team?

<gadget id="calculator">10 / 6</gadget>
<output>5/3 = around 1.666667</output>
<gadget id="calculator">12 * (5/3)</gadget>
<output>20</output>
<result>20</result>


某洗发水原价15元一瓶，为了促销，降低了价格，销售量增加了2倍，收入增加了五分之三，则一瓶洗发水降价了多少元？

The original price of a bottle of shampoo is 15 yuan. In order to promote sales, the price has been lowered, the sales volume has doubled, and the income has increased by 3/5. How much has the price of a bottle of shampoo been reduced?

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>
<gadget id="calculator">1 + (3/5)</gadget>
<output>8/5 = around 1.6</output>
<gadget id="calculator">2 + 1</gadget>
<output>3</output>
<gadget id="calculator">(8/5) / 3</gadget>
<output>8/15 = around 0.533333</output>
<gadget id="calculator">15 * (8/15)</gadget>
<output>8</output>
<gadget id="calculator">15 - 8</gadget>
<output>7</output>
<result>7</result>


人民机床厂五月份制造机床108台，六月份比五月份多(1/9)，六月份制造多少．

The People's Machine Tool Factory manufactured 108 machine tools in May, which was more (1/9) in June than in May, and how much was manufactured in June.

<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>
<gadget id="calculator">1 + (1/9)</gadget>
<output>10/9 = around 1.111111</output>
<gadget id="calculator">108 * (10/9)</gadget>
<output>120</output>
<result>120</result>


一块布长8米，正好可以做12条同样大小的裤子，每条裤子用布几分之几米？

A piece of cloth is 8 meters long, just enough to make 12 pairs of trousers of the same size, what fraction of a meter of cloth is used for each pair of trousers?

<gadget id="calculator">8 / 12</gadget>
<output>2/3 = around 0.666667</output>
<result>2/3 = around 0.666667</result>


一头小象重1吨，一头猪重250千克，一头小象比一头猪重多少千克？

A baby elephant weighs 1 ton and a pig weighs 250 kg. How much does a baby elephant weigh more than a pig?

<gadget id="calculator">1 * 1_000</gadget>
<output>1_000</output>
<gadget id="calculator">1_000 - 250</gadget>
<output>750</output>
<result>750</result>


为迎接2008北京奥运，工厂要赶制2万套服装，第一小组加工了这批服装的(1/5)，第二小组加工了这批服装的(1/4)，还剩下这批服装的几分之几？

In order to welcome the 2008 Beijing Olympic Games, the factory has to rush to produce 20,000 sets of clothing. The first group processed (1/5) of this batch of clothing, the second group processed (1/4) of this batch of clothing, and the remaining batch What fraction of clothing?

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">1 - (1/5) - (1/4)</gadget>
<output>11/20 = around 0.55</output>
<result>11/20 = around 0.55</result>


一批产品有70多个，大箱每箱装9个，正好装完；如果换成小箱，每箱装6个，也正好装完．这批产品有多少个？

There are more than 70 products in a batch, and each large box contains 9 pieces, which is just finished; if it is replaced by a small box, each box contains 6 pieces, which is also just finished. How many pieces are there in this batch?


一艘轮船从甲港驶往乙港每小时行50千米，按原路返回时每小时行30千米，求这艘轮船往返的平均速度．

ship travels 50 kilometers per hour from port A to port B, and travels 30 kilometers per hour when returning on the same route. Find the average speed of the ship going back and forth.

<gadget id="calculator">1 / 50</gadget>
<output>1/50 = around 0.02</output>
<gadget id="calculator">1 / 30</gadget>
<output>1/30 = around 0.033333</output>
<gadget id="calculator">(1/50) + (1/30)</gadget>
<output>4/75 = around 0.053333</output>
<gadget id="calculator">2 / (4/75)</gadget>
<output>75/2 = around 37.5</output>
<gadget id="calculator">1 * (75/2)</gadget>
<output>75/2 = around 37.5</output>
<result>75/2 = around 37.5</result>


我买了两套丛书，共花了22元，《科学家》每本2.5元，《发明家》每本4元，《科学家》丛书有4本，《发明家》丛书多少本？

I bought two series of books and spent a total of 22 yuan. Each book of "Scientist" is 2.5 yuan, and each book of "Inventor" is 4 yuan. There are 4 books in the "Scientist" series. How many books are there in the "Inventor" series?

<gadget id="calculator">2.5 * 4</gadget>
<output>10</output>
<gadget id="calculator">22 - 10</gadget>
<output>12</output>
<gadget id="calculator">12 / 4</gadget>
<output>3</output>
<result>3</result>


一堆煤共54吨，一辆载重8吨的卡车一共运了4次，还剩下多少吨？

A pile of coal has a total of 54 tons, and a truck with a load of 8 tons has been transported 4 times. How many tons are left?

<gadget id="calculator">8 * 4</gadget>
<output>32</output>
<gadget id="calculator">54 - 32</gadget>
<output>22</output>
<result>22</result>


一个长方体的长和宽都扩大3倍，高不变，体积就扩大多少．

The length and width of a cuboid are increased by 3 times, and the height remains the same, so the volume is increased by the same amount.

<gadget id="calculator">3 * 3</gadget>
<output>9</output>
<result>9</result>


一共有25个小组参加植树，每个小组种了5棵树苗．购买树苗花了1250元，每棵树苗多少钱？

A total of 25 groups participated in tree planting, and each group planted 5 saplings. It cost 1250 yuan to buy saplings, how much is each sapling?

<gadget id="calculator">5 * 25</gadget>
<output>125</output>
<gadget id="calculator">1_250 / 125</gadget>
<output>10</output>
<result>10</result>


姐姐用两条长度分别是1.26和0.95米的彩带来包装礼物，接口处共用去绳子0.11米，接好后的绳子有多长？

My sister used two ribbons with lengths of 1.26 meters and 0.95 meters to wrap the presents. The joints share 0.11 meters of rope. How long is the rope after it is connected?

<gadget id="calculator">0.95 - 0.11</gadget>
<output>0.84</output>
<gadget id="calculator">1.26 + 0.84</gadget>
<output>2.1</output>
<result>2.1</result>


小红数学92分，语文90分，英语成绩比三门的平均成绩高4分，英语考了多少分？

Xiaohong got 92 points in math, 90 points in Chinese, and her English score was 4 points higher than the average score of the three subjects. How many points did she score in the English test?

<gadget id="calculator">92 / 3</gadget>
<output>92/3 = around 30.666667</output>
<gadget id="calculator">90 / 3</gadget>
<output>30</output>
<gadget id="calculator">(92/3) + 30 + 4</gadget>
<output>194/3 = around 64.666667</output>
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>
<gadget id="calculator">(194/3) / (2/3)</gadget>
<output>97</output>
<result>97</result>


被除数中间有0，商的中间不一定有多少

There is 0 in the middle of the dividend, and there may not be many in the middle of the quotient


小红买一个书包用去所带钱的一半，买一个文具盒又用去5元，这时还剩下25元，小红原来带了多少钱？

Xiaohong buys a schoolbag and spends half of the money she brings, and buys a pencil case and spends another 5 yuan. At this time, there is still 25 yuan left. How much did Xiaohong bring?

<gadget id="calculator">5 + 25</gadget>
<output>30</output>
<gadget id="calculator">30 * 2</gadget>
<output>60</output>
<result>60</result>


一块圆形铁皮与一块长方形铁皮的周长相等．已知长方形铁皮的长是10.64分米，宽是8.2分米，那么这块圆形铁皮的半径是多少分米？

A circular iron sheet has the same perimeter as a rectangular iron sheet. It is known that the length of the rectangular iron sheet is 10.64 decimeters and the width is 8.2 decimeters, so how many decimeters is the radius of this circular iron sheet?

<gadget id="calculator">10.64 + 8.2</gadget>
<output>18.84</output>
<gadget id="calculator">2 / 3.14 / 2</gadget>
<output>0.318471</output>
<gadget id="calculator">18.84 * 0.318471</gadget>
<output>5.999994</output>
<result>5.999994</result>


一批水果500千克，含水率90%，一星期后含水率为80%，这批水果现在重多少千克？

A batch of fruit weighs 500 kg with a water content of 90%, and after a week the water content will be 80%. How much does this batch of fruit weigh now?

<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>
<gadget id="calculator">1 - (9/10)</gadget>
<output>1/10 = around 0.1</output>
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">1 - (4/5)</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">(1/10) / (1/5)</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">500 * (1/2)</gadget>
<output>250</output>
<result>250</result>


一堆货物重119吨，先用载重量是5吨的汽车运走一车后，再增加一辆载重量是4.5吨的汽车一起来运，还要几次才能运完？

A pile of cargo weighs 119 tons. First, a truck with a load capacity of 5 tons is used to transport one truck away, and then a vehicle with a load capacity of 4.5 tons is added to transport it together. How many times will it take to finish the shipment?

<gadget id="calculator">119 - 5</gadget>
<output>114</output>
<gadget id="calculator">4.5 + 5</gadget>
<output>9.5</output>
<gadget id="calculator">114 / 9.5</gadget>
<output>12</output>
<result>12</result>


一块长方形木板长5米，宽2米，这块木板的周长是多少米．

A rectangular board is 5 meters long and 2 meters wide, what is the perimeter of the board?

<gadget id="calculator">5 + 2</gadget>
<output>7</output>
<gadget id="calculator">7 * 2</gadget>
<output>14</output>
<result>14</result>


一个书店购进文艺书90本，购进的故事书比文艺书多(1/6)，购进故事书多少本？

A bookstore buys 90 literary books, and buys more story books (1/6) than literary books. How many story books are purchased?

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">1 + (1/6)</gadget>
<output>7/6 = around 1.166667</output>
<gadget id="calculator">90 * (7/6)</gadget>
<output>105</output>
<result>105</result>


花生仁的出油率是25%，榨40千克的花生油需多少千克花生仁．

The oil yield of peanut kernels is 25%, how many kilograms of peanut kernels are needed to squeeze 40kg of peanut oil.

<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">40 / (1/4)</gadget>
<output>160</output>
<result>160</result>


甲、乙两车从相距360千米的A、B两地同时相对开出，甲车到达B地要5小时，乙车到达A地要6小时．当甲车到达B地，乙车距离A地还有多少千米？

Two cars, A and B, start from A and B, which are 360 kilometers apart, at the same time. It takes 5 hours for A to reach B, and 6 hours for B to reach A. When car A arrives at point B, how many kilometers away is car B from point A?

<gadget id="calculator">360 / 6</gadget>
<output>60</output>
<gadget id="calculator">60 * 5</gadget>
<output>300</output>
<gadget id="calculator">360 - 300</gadget>
<output>60</output>
<result>60</result>


工程队修一条长(5/6)千米的公路，第一天修了全长的(1/5)，第二天修了全长的(1/3)，如果要求第三天修完，那么第三天就应修全长的几分之几？

The engineering team repairs a road with a length of (5/6) kilometers. The full length (1/5) is repaired on the first day, and the full length (1/3) is repaired on the second day. If it is required to be completed on the third day, then What fraction of the total length should be repaired on the third day?

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">1 - (1/5) - (1/3)</gadget>
<output>7/15 = around 0.466667</output>
<result>7/15 = around 0.466667</result>


某商场电视机的原价为2500元，现已8折出售，如果想降价前后的销售额都为10万元，那么销售量应增加百分之几？

The original price of a TV set in a shopping mall is 2,500 yuan, and it has been sold at a 20% discount. If the sales before and after the price reduction are expected to be 100,000 yuan, how much should the sales volume increase?

<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">2_500 * (4/5)</gadget>
<output>2_000</output>
<gadget id="calculator">100_000 / 2_000</gadget>
<output>50</output>
<gadget id="calculator">100_000 / 2_500</gadget>
<output>40</output>
<gadget id="calculator">50 - 40</gadget>
<output>10</output>
<gadget id="calculator">10 / 50</gadget>
<output>1/5 = around 0.2</output>
<result>1/5 = around 0.2</result>


火车5小时行475千米，汽车6小时行了480千米，火车与汽车哪个快？快多少？

The train travels 475 kilometers in 5 hours, and the car travels 480 kilometers in 6 hours. Which is faster, the train or the car? How much faster?

<gadget id="calculator">475 / 5</gadget>
<output>95</output>
<gadget id="calculator">480 / 6</gadget>
<output>80</output>
<gadget id="calculator">95 - 80</gadget>
<output>15</output>
<result>15</result>


爸爸今年36岁，小兰的年龄相当于爸爸的(1/4)，小兰今年多少岁．

Dad is 36 years old this year, and Xiaolan's age is equivalent to (1/4) of her father's. How old is Xiaolan this year?

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">36 * (1/4)</gadget>
<output>9</output>
<result>9</result>


甲、乙两车同时从A、B两地相向而行，在距B地54千米处相遇，他们各自到达对方车站后立即返回，途中又在距A地27千米处相遇，AB两地相距多少千米．

Cars A and B are traveling towards each other from places A and B at the same time, and meet at a distance of 54 kilometers from place B. After arriving at each other's station, they return immediately, and meet again at a distance of 27 kilometers from place A. How many kilometers apart.

<gadget id="calculator">54 * 3</gadget>
<output>162</output>
<gadget id="calculator">162 - 27</gadget>
<output>135</output>
<result>135</result>


修路队三个月修完一条路，第一个月修了138千米，第二个月修了125千米，第三个月修了162千米．这条路一共长多少千米？

The road construction team completed a road in three months, 138 kilometers in the first month, 125 kilometers in the second month, and 162 kilometers in the third month. How many kilometers is this road in total?

<gadget id="calculator">138 + 125 + 162</gadget>
<output>425</output>
<result>425</result>


把3千克茶叶平均分装在5个盒子里，每个盒子装茶叶多少千克，占茶叶总量的(((())/(())))．

Pack 3 kilograms of tea evenly into 5 boxes, how many kilograms of tea are contained in each box, accounting for (((())/(()))) of the total amount of tea.

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>
<result>3/5 = around 0.6</result>


一个长方体的底面积不变，如果高由4厘米增加到5厘米，体积比原来增加百分之几？正确的列式是多少

If the base area of a cuboid is constant, if the height is increased from 4 cm to 5 cm, how much will the volume increase? What is the correct column

<gadget id="calculator">5 / 4</gadget>
<output>5/4 = around 1.25</output>
<gadget id="calculator">100 / 100</gadget>
<output>1</output>
<gadget id="calculator">(5/4) - 1</gadget>
<output>1/4 = around 0.25</output>
<result>1/4 = around 0.25</result>


六5班的课室里摆了8列的课桌，每一列的桌子都是一样多，今天早上只有1名同学请假，其中这个请假的同学就在第一列最后一个位置是(1，6)，那么今天全班有多少个同学上学．

There are 8 rows of desks in the classroom of Class 6 and 5, and each row has the same number of desks. Only one student asked for leave this morning, and the student who asked for leave is in the last position of the first column (1, 6) , so how many students in the whole class go to school today.

<gadget id="calculator">8 * 6</gadget>
<output>48</output>
<gadget id="calculator">48 - 1</gadget>
<output>47</output>
<result>47</result>


明华小学的操场近似长方形，画在1：400的比例尺上长是18厘米，宽是10厘米．操场的实际面积大约是多少平方米？

The playground of Minghua Elementary School is approximately rectangular, with a length of 18 centimeters and a width of 10 centimeters drawn on a scale of 1:400. How many square meters is the actual area of the playground?

<gadget id="calculator">1 / 400</gadget>
<output>1/400 = around 0.0025</output>
<gadget id="calculator">18 / (1/400) / 100</gadget>
<output>72</output>
<gadget id="calculator">10 / (1/400) / 100</gadget>
<output>40</output>
<gadget id="calculator">72 * 40</gadget>
<output>2_880</output>
<result>2_880</result>


把4米长的绳子平均剪成5段，每段绳子占全长的多少．

Cut a 4-meter-long rope into 5 sections on average, and how much of the total length does each section occupy.

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">(4/5) / 4</gadget>
<output>1/5 = around 0.2</output>
<result>1/5 = around 0.2</result>


幼儿园老师拿来一包糖准备分给小朋友，如果5颗5颗地数，最后余1颗，如果6颗6颗地数，最后少5颗，那么这包糖至少有多少颗？

The kindergarten teacher brought a pack of candies and prepared to distribute them to the children. If 5 pieces were counted by 5 pieces, there would be 1 piece left at the end; if 6 pieces were counted by 6 pieces, there would be 5 pieces left in the end, so how many pieces of candy are there at least in this bag?

<gadget id="calculator">2 * 3 * 5</gadget>
<output>30</output>
<gadget id="calculator">30 + 1</gadget>
<output>31</output>
<result>31</result>


黑板上写着十个两位数：13，21，24，36，45，51，57，72，75，85．第一次擦掉三个数，其中一个数是另两个数的和．第二、第三次也按同样规则再分别擦出三个数，那么剩下最后一个数为多少．

There are ten two-digit numbers written on the blackboard: 13, 21, 24, 36, 45, 51, 57, 72, 75, 85. Erase three numbers for the first time, one of which is the sum of the other two. For the second and third times, use the same rule to erase three numbers respectively, so what is the last number left?


一块菜地，(3/9)的地种了茄子，剩下的地种西红柿，种西红柿的地占整块地的几分之几？

In a vegetable field, (3/9) of the land is planted with eggplants, and the rest of the land is planted with tomatoes. What fraction of the entire land is planted with tomatoes?

<gadget id="calculator">3 / 9</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>
<result>2/3 = around 0.666667</result>


在一道减法算式中，减数是被减数的20%，差相当于被减数的多少

In a subtraction formula, the subtrahend is 20% of the minuend, and the difference is equal to the minuend

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">(4/5) / 1</gadget>
<output>4/5 = around 0.8</output>
<result>4/5 = around 0.8</result>


现有浓度为30%的食盐水400g，要把它变成浓度为50%的食盐水，需加盐多少克？

The existing concentration of 30% salt water is 400g, how many grams of salt should be added to turn it into 50% salt water?

<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>
<gadget id="calculator">1 - (3/10)</gadget>
<output>7/10 = around 0.7</output>
<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">1 - (1/2)</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">(7/10) / (1/2)</gadget>
<output>7/5 = around 1.4</output>
<gadget id="calculator">400 * (7/5)</gadget>
<output>560</output>
<gadget id="calculator">560 - 400</gadget>
<output>160</output>
<result>160</result>


一个底面直径为8厘米的圆柱形量杯，里面装有水，把一个底面直径为2厘米的小圆锥形铁件放在量杯内水中浸没，这时水的高度由原来的16厘米上升到17厘米．求小圆锥形铁件的高是多少厘米？

A cylindrical measuring cup with a bottom diameter of 8 cm is filled with water. A small conical iron piece with a bottom diameter of 2 cm is placed in the measuring cup and submerged in the water. At this time, the height of the water rises from 16 cm to 17 cm. ． What is the height of the small conical iron piece in centimeters?

<gadget id="calculator">8 / 2</gadget>
<output>4</output>
<gadget id="calculator">4 ** 2</gadget>
<output>16</output>
<gadget id="calculator">17 - 16</gadget>
<output>1</output>
<gadget id="calculator">2 / 2</gadget>
<output>1</output>
<gadget id="calculator">1 ** 2</gadget>
<output>1</output>
<gadget id="calculator">3.14 * 1</gadget>
<output>3.14</output>
<gadget id="calculator">3 / 3.14</gadget>
<output>0.955414</output>
<gadget id="calculator">3.14 * 16 * 1 * 0.955414</gadget>
<output>47.999999</output>
<result>47.999999</result>


两只蚂蚁，相距175cm，大蚂蚁每秒钟爬行4cm，小蚂蚁每秒钟爬行3cm，经过几秒钟后，两只蚂蚁会相遇？

Two ants are 175cm apart. The big ant crawls 4cm per second, and the small ant crawls 3cm per second. After a few seconds, will the two ants meet?

<gadget id="calculator">4 + 3</gadget>
<output>7</output>
<gadget id="calculator">175 / 7</gadget>
<output>25</output>
<result>25</result>


<gadget id="calculator">2 * 25</gadget>
<output>50</output>
<result>50</result>


一列火车从甲地到乙地，每小时行84千米，4.5小时到达；结果4小时就到达，那么这列火车从甲地到乙地平均每小时行多少千米．

A train travels 84 kilometers per hour from place A to place B and arrives in 4.5 hours; it arrives in 4 hours, then how many kilometers does the train travel from place A to place B per hour on average?

<gadget id="calculator">4.5 / 4</gadget>
<output>1.125</output>
<gadget id="calculator">84 * 1.125</gadget>
<output>94.5</output>
<result>94.5</result>


汽车从甲地去乙地，2.5小时行驶了150km，照这样的速度又行驶了4小时到达乙地，甲乙两地相距多少千米？

A car travels 150km from place A to place B in 2.5 hours. At this speed, it travels another 4 hours to reach place B. How many kilometers are there between places A and B?

<gadget id="calculator">150 / 2.5</gadget>
<output>60</output>
<gadget id="calculator">2.5 + 4</gadget>
<output>6.5</output>
<gadget id="calculator">60 * 6.5</gadget>
<output>390</output>
<result>390</result>


把一根铁丝先围成一个边长为6分米的正方形，再改围成一个长是7分米的长方形，长方形的宽是多少分米．

A piece of iron wire is first surrounded by a square with a side length of 6 decimeters, and then changed into a rectangle with a length of 7 decimeters. What is the width of the rectangle?

<gadget id="calculator">4 / 2</gadget>
<output>2</output>
<gadget id="calculator">6 * 2</gadget>
<output>12</output>
<gadget id="calculator">12 - 7</gadget>
<output>5</output>
<result>5</result>


每个书包x元，买5个书包，付给200元，应找回多少元．

Each schoolbag is x yuan, if you buy 5 schoolbags and pay 200 yuan, how much should you get back?

<gadget id="calculator">200 - 5</gadget>
<output>195</output>
<result>195</result>


把一根4.2米长的竹竿插入河中测量水的深度．插入泥中的部分是0.3米，露出水面部分是1.4米，水的深度是多少？

A 4.2-meter-long bamboo pole is inserted into the river to measure the depth of the water. The part inserted into the mud is 0.3 meters, and the part above the water is 1.4 meters. What is the depth of the water?

<gadget id="calculator">4.2 - 0.3 - 1.4</gadget>
<output>2.5</output>
<result>2.5</result>


一衣服按200元价格卖出可赚40元，如果这件衣服售出时只卖144元，将亏损多少．

If a piece of clothing is sold at a price of 200 yuan, you can earn 40 yuan. If the clothes are sold for only 144 yuan, how much will you lose?

<gadget id="calculator">200 - 40 - 144</gadget>
<output>16</output>
<gadget id="calculator">200 - 40</gadget>
<output>160</output>
<gadget id="calculator">16 / 160</gadget>
<output>1/10 = around 0.1</output>
<result>1/10 = around 0.1</result>


舅舅44岁，他的四个外甥分别是14岁、12岁、4岁及2岁．问几年后舅舅的年龄等于四个外甥年龄的总和？

Uncle is 44 years old, and his four nephews are 14, 12, 4 and 2 years old. Ask how many years later the age of the uncle is equal to the sum of the ages of the four nephews?

<gadget id="calculator">44 - 14 - 12 - 4 - 2</gadget>
<output>12</output>
<gadget id="calculator">4 - 1</gadget>
<output>3</output>
<gadget id="calculator">12 / 3</gadget>
<output>4</output>
<result>4</result>


图书馆星期一有顾客826人，星期二上午有顾客457人，下午有顾客343人，平均每天来图书馆的有多少人？

The library has 826 customers on Monday, 457 customers in the morning on Tuesday, and 343 customers in the afternoon. How many people come to the library on average every day?

<gadget id="calculator">826 + 457 + 343</gadget>
<output>1_626</output>
<gadget id="calculator">1_626 / 2</gadget>
<output>813</output>
<result>813</result>


有一堆糖，比10块多，比20块少，平均分给5个小朋友，正好分完．这堆糖有多少块．

There is a pile of candies, more than 10 yuan and less than 20 yuan, which is distributed to 5 children on average, and the distribution is just finished. How many pieces are there in this pile of candy?

<gadget id="calculator">5 * 3</gadget>
<output>15</output>
<result>15</result>


修一条水渠，计划每天修80m，20天可以完成，如果要提前4天完成，那么每天要比计划多修多少米．

To build a canal, it is planned to build 80m per day, and it can be completed in 20 days. If it is to be completed 4 days ahead of schedule, how many meters will be repaired every day than planned.

<gadget id="calculator">20 - 4</gadget>
<output>16</output>
<gadget id="calculator">20 / 16</gadget>
<output>5/4 = around 1.25</output>
<gadget id="calculator">80 * (5/4)</gadget>
<output>100</output>
<gadget id="calculator">100 - 80</gadget>
<output>20</output>
<result>20</result>


甲乙两地间距40km，画在比例尺上为1：500000的图上，应画多少cm．

The distance between A and B is 40km, and the scale is 1:500000, how many cm should be drawn.

<gadget id="calculator">1 / 500_000</gadget>
<output>1/500_000 = around 0.000002</output>
<gadget id="calculator">40 * 100_000 * (1/500_000)</gadget>
<output>8</output>
<result>8</result>


一台压路机，每分钟行驶30米，压路的宽度是3米，压路机每分钟能压多少平方米平方米的路面．

A road roller travels 30 meters per minute, and the width of the road is 3 meters. How many square meters of road surface can the road roller press per minute?

<gadget id="calculator">30 * 3</gadget>
<output>90</output>
<result>90</result>


如果200≤a≤400，600≤b≤1200，那么((b)/(a))的最大值是多少．

If 200≤a≤400, 600≤b≤1200, what is the maximum value of ((b)/(a)).

<gadget id="calculator">1_200 / 200</gadget>
<output>6</output>
<result>6</result>


洋洋买一种"龙骑士"战斗陀螺，经过还价后，付款6元钱，比原价便宜了4元钱．小龙买战斗陀螺实际价钱比原价便宜了百分之几？

Yangyang bought a "Dragon Knight" fighting top. After counter-offering, he paid 6 yuan, which was 4 yuan cheaper than the original price. How many percent is the actual price of Xiaolong's fighting top cheaper than the original price?

<gadget id="calculator">6 + 4</gadget>
<output>10</output>
<gadget id="calculator">4 / 10</gadget>
<output>2/5 = around 0.4</output>
<result>2/5 = around 0.4</result>


有两个炮兵营参加军事演习，它们各准备了若干枚炮弹．开始一营比二营多准备了5枚炮弹．后来因为演习需要，一营给了二营20枚炮弹．这时二营炮弹数量就比一营的3倍还多3枚．一营开始时准备了几枚炮弹？

There are two artillery battalions participating in the military exercise, each of which has prepared a number of shells. At the beginning, the first battalion prepared 5 more shells than the second battalion. Later, because of the need for the exercise, the first battalion gave the second battalion 20 shells. At this time, the number of shells in the second battalion was 3 times more than that of the first battalion. How many shells were prepared at the beginning of the first battalion?

<gadget id="calculator">3 * 20</gadget>
<output>60</output>
<gadget id="calculator">60 - 3</gadget>
<output>57</output>
<gadget id="calculator">15 + 57</gadget>
<output>72</output>
<gadget id="calculator">3 - 1</gadget>
<output>2</output>
<gadget id="calculator">72 / 2</gadget>
<output>36</output>
<result>36</result>


红花有50朵，比黄花多(1/4)，黄花有多少朵？列式正确的是多少

There are 50 red flowers, which are 1/4 more than yellow flowers. How many yellow flowers are there? What is the correct column

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>
<gadget id="calculator">50 / (5/4)</gadget>
<output>40</output>
<result>40</result>


有沙土4立方米，要垫在长5米，宽4米的房间里，可以垫多少米厚．

There are 4 cubic meters of sand and soil, and it needs to be placed in a room with a length of 5 meters and a width of 4 meters. How many meters can it be thick?

<gadget id="calculator">5 * 4</gadget>
<output>20</output>
<gadget id="calculator">4 / 20</gadget>
<output>1/5 = around 0.2</output>
<result>1/5 = around 0.2</result>


We have learned the four operations of "+-*/", and now it is stipulated that a*b=a*(b+2), such as: 4*3=4*(3+2)=20, then 3*8=how much ．

<gadget id="calculator">8 + 2</gadget>
<output>10</output>
<gadget id="calculator">3 * 10</gadget>
<output>30</output>
<result>30</result>


用180厘米长的铁丝做一个长方体框架，长、宽、高的比是3：2：1．这个长方体的宽是多少厘米

Use 180 cm long iron wire to make a cuboid frame, the ratio of length, width and height is 3:2:1. What is the width of this cuboid in centimeters

<gadget id="calculator">180 / 4</gadget>
<output>45</output>
<gadget id="calculator">3 + 2 + 1</gadget>
<output>6</output>
<gadget id="calculator">2 / 6</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">45 * (1/3)</gadget>
<output>15</output>
<result>15</result>


某区有100位外语教师懂英语和日语，其中懂英语的有75人，既懂英语又懂日语的有20人，那么只懂日语的教师有多少人？

There are 100 foreign language teachers in a certain district who know English and Japanese, 75 of them know English, and 20 know both English and Japanese, so how many teachers only know Japanese?

<gadget id="calculator">100 - 75</gadget>
<output>25</output>
<result>25</result>


Suppose n is a natural number, d is a number from 1-9, if ((n)/444)=0.{_{5}**(•)}d{_{7}**(•)} ． Then what is n equal to?

<gadget id="calculator">63 * 4</gadget>
<output>252</output>
<result>252</result>


用1,9,9,5四个数字卡片，可以组成多少个不同的四位数．

How many different four-digit numbers can be formed by using four number cards of 1,9,9,5.

<gadget id="calculator">3 + 3 + 6</gadget>
<output>12</output>
<result>12</result>


□59/56的商是两位数，□里最小填多少．

□The quotient of 59/56 is two digits, what is the minimum number in □.


有一根56厘米长的铁丝，做成一个长是5厘米，宽是4厘米的长方体框架，这个长方体高多少厘米．

There is a 56 cm long iron wire, which is made into a cuboid frame with a length of 5 cm and a width of 4 cm. What is the height of the cuboid in cm?

<gadget id="calculator">56 / 4</gadget>
<output>14</output>
<gadget id="calculator">14 - 5 - 4</gadget>
<output>5</output>
<result>5</result>


一个足球现在售价60元，比原来降低了20元，比原来降低了多少

A football is now priced at 60 yuan, which is 20 yuan lower than the original price. How much is it lower than the original price?

<gadget id="calculator">60 + 20</gadget>
<output>80</output>
<gadget id="calculator">20 / 80</gadget>
<output>1/4 = around 0.25</output>
<result>1/4 = around 0.25</result>


王老师今年43岁，小明今年15岁，小红今年11岁，小亮今年7岁，要过多少年，王老师的岁数等于他们三个小朋友岁数的和．

Teacher Wang is 43 years old, Xiaoming is 15 years old, Xiaohong is 11 years old, and Xiaoliang is 7 years old.

<gadget id="calculator">43 - 15 - 11 - 7</gadget>
<output>10</output>
<gadget id="calculator">1 - 1</gadget>
<output>0</output>
<gadget id="calculator">1 + 1 + 0</gadget>
<output>2</output>
<gadget id="calculator">10 / 2</gadget>
<output>5</output>
<result>5</result>


两个数的最大公因数是60，最小公倍数是360．其中一个数是120，另一个数是多少．

The greatest common factor of two numbers is 60 and the least common multiple is 360. One of the numbers is 120, what is the other number?

<gadget id="calculator">360 / 120</gadget>
<output>3</output>
<gadget id="calculator">60 * 3</gadget>
<output>180</output>
<result>180</result>


(4/5)与(2/3)的差乘以一个数，等于(2/7)，这个数是多少？

The difference between (4/5) and (2/3) multiplied by a number is equal to (2/7). What is this number?

<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>
<gadget id="calculator">(4/5) - (2/3)</gadget>
<output>2/15 = around 0.133333</output>
<gadget id="calculator">(2/7) / (2/15)</gadget>
<output>15/7 = around 2.142857</output>
<result>15/7 = around 2.142857</result>


6除1.5的商，加上3，再乘3，积是多少？

The quotient of 6 divided by 1.5, add 3, and multiply by 3, what is the product?

<gadget id="calculator">1.5 / 6</gadget>
<output>0.25</output>
<gadget id="calculator">0.25 + 3</gadget>
<output>3.25</output>
<gadget id="calculator">3.25 * 3</gadget>
<output>9.75</output>
<result>9.75</result>


<gadget id="calculator">9 + 5</gadget>
<output>14</output>
<gadget id="calculator">3 * 14</gadget>
<output>42</output>
<result>42</result>


边长为5的等边三角形的周长是多少

What is the perimeter of an equilateral triangle with side length 5?

<gadget id="calculator">5 * 3</gadget>
<output>15</output>
<result>15</result>


现有960吨物资要运往灾区，用8辆卡车3次运完．平均每辆卡车每次运多少吨？

There are 960 tons of materials to be transported to the disaster area, and 8 trucks are used to transport them three times. How many tons does each truck transport on average?

<gadget id="calculator">960 / 3 / 8</gadget>
<output>40</output>
<result>40</result>


A是一个自然数，如果从A中依次减去1，3，5…．若干个连续单数(奇数)，直到不够减时为止，那么还剩下29；如果从A中依次减去2，4，6…．若干个连续双数(偶数)，直到不够减时为止，那么还剩下13．自然数A是多少．

A is a natural number, if we subtract 1, 3, 5... from A in sequence. Several consecutive odd numbers (odd numbers) until there are not enough subtractions, then there are 29 left; if you subtract 2, 4, 6... from A in turn. Several consecutive double numbers (even numbers) until there are not enough subtractions, then there are 13 left. What is the natural number A?

<gadget id="calculator">15 * 2</gadget>
<output>30</output>
<gadget id="calculator">1 + 1 + 30</gadget>
<output>32</output>
<gadget id="calculator">29 - 13</gadget>
<output>16</output>
<gadget id="calculator">16 / 2</gadget>
<output>8</output>
<gadget id="calculator">32 * 8</gadget>
<output>256</output>
<gadget id="calculator">256 + 29</gadget>
<output>285</output>
<result>285</result>


小明看一本书，计划每天看40页，15天完成，如果每天看50页，多少天可以完成？(用比例解)

Xiao Ming reads a book and plans to read 40 pages a day and finish it in 15 days. If he reads 50 pages a day, how many days can he finish it? (Solve with ratio)

<gadget id="calculator">15 * 40</gadget>
<output>600</output>
<gadget id="calculator">600 / 50</gadget>
<output>12</output>
<result>12</result>


在一条长120米的水渠的一边植树，每隔3米植1棵，两头都植，共可植多少棵树？

Plant trees on one side of a 120-meter-long canal, plant one tree every 3 meters, and plant both ends. How many trees can be planted in total?

<gadget id="calculator">120 / 3</gadget>
<output>40</output>
<gadget id="calculator">40 + 1</gadget>
<output>41</output>
<result>41</result>


一个圆柱高10分米，如果高再增加2分米，那么表面积将增加25.12平方分米，则这个圆柱的原来的侧面积是多少平方分米．

A cylinder is 10 decimeters high. If the height increases by 2 decimeters, the surface area will increase by 25.12 decimeters squared. What is the original side area of the cylinder in square decimeters?

<gadget id="calculator">25.12 / 2</gadget>
<output>12.56</output>
<gadget id="calculator">12.56 * 10</gadget>
<output>125.6</output>
<result>125.6</result>


六1班有学生50人，某一天有1人请事假，2人请病假．这个班当天的出勤率是多少？

There are 50 students in Class 1 of June. On a certain day, 1 person asks for personal leave and 2 people ask for sick leave. What is the attendance rate for this class that day?

<gadget id="calculator">50 - 1 - 2</gadget>
<output>47</output>
<gadget id="calculator">47 / 50</gadget>
<output>47/50 = around 0.94</output>
<gadget id="calculator">100 / 100</gadget>
<output>1</output>
<gadget id="calculator">(47/50) * 1</gadget>
<output>47/50 = around 0.94</output>
<result>47/50 = around 0.94</result>


王叔叔从甲地开车到乙地办事，每小时行45千米，他上午8时小时出发，下午2时到达乙地，甲、乙两地相距多少千米？

Uncle Wang drives from place A to place B for work, and travels 45 kilometers per hour. He starts at 8:00 am and arrives at place B at 2:00 pm. How many kilometers are there between places A and B?

<gadget id="calculator">4 + 2</gadget>
<output>6</output>
<gadget id="calculator">45 * 6</gadget>
<output>270</output>
<result>270</result>


某公园里的自动旋转喷灌装置的喷射直径是16米，它的喷灌面积最大是多少？

The spray diameter of the automatic rotary sprinkler irrigation device in a certain park is 16 meters. What is the maximum sprinkler area?

<gadget id="calculator">16 / 2</gadget>
<output>8</output>
<gadget id="calculator">8 ** 2</gadget>
<output>64</output>
<gadget id="calculator">3.14 * 64</gadget>
<output>200.96</output>
<result>200.96</result>


某校学生中有72%会打乒乓球，65%会打篮球，已知会打乒乓球的比会打篮球的多14人，这所学校一共有多少学生？

72% of the students in a certain school can play table tennis and 65% can play basketball. It is known that there are 14 more students who can play table tennis than those who can play basketball. How many students are there in this school?

<gadget id="calculator">72 / 100</gadget>
<output>18/25 = around 0.72</output>
<gadget id="calculator">65 / 100</gadget>
<output>13/20 = around 0.65</output>
<gadget id="calculator">(18/25) - (13/20)</gadget>
<output>7/100 = around 0.07</output>
<gadget id="calculator">14 / (7/100)</gadget>
<output>200</output>
<result>200</result>


煎鸡蛋，一个锅里最多能煎2个，一个鸡蛋要煎两面(每面要2分钟)，那么煎5个鸡蛋至少要煎多少分钟．

To fry eggs, you can fry up to 2 eggs in one pan, and one egg needs to be fried on both sides (2 minutes on each side), so how many minutes should you fry 5 eggs at least?

<gadget id="calculator">4 + 6</gadget>
<output>10</output>
<result>10</result>


客车每小时56千米，货车每小时40千米，货车先行2小时，请问客车什么时间追上客车？

The passenger car is 56 kilometers per hour, the truck is 40 kilometers per hour, and the truck goes ahead for 2 hours. When will the passenger car catch up with the passenger car?

<gadget id="calculator">56 - 40</gadget>
<output>16</output>
<gadget id="calculator">2 / 16</gadget>
<output>1/8 = around 0.125</output>
<gadget id="calculator">40 * (1/8)</gadget>
<output>5</output>
<result>5</result>


一根电线长22.4米，第一次用去(1/4)，第二次用去(1/2)米，两次一共用去电线多少米？

A wire is 22.4 meters long. (1/4) is used for the first time, and (1/2) meter is used for the second time. How many meters of wire are used for the two times?

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">22.4 * (1/4)</gadget>
<output>5.6</output>
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">5.6 + (1/2)</gadget>
<output>6.1</output>
<result>6.1</result>


一个圆柱的侧面积是37.68平方分米，底面半径3分米，它的高是多少分米？

The lateral area of a cylinder is 37.68 square decimeters, and the radius of the base is 3 decimeters. How many decimeters is its height?

<gadget id="calculator">3.14 * 3 * 2</gadget>
<output>18.84</output>
<gadget id="calculator">37.68 / 18.84</gadget>
<output>2</output>
<result>2</result>


甲、乙、丙、丁四个人集资120万元做生意．甲出的钱是其他3个人的(1/3)，乙出的钱是其他3个人的(1/4)，丙出的钱是其他3个人的(1/5)，丁出了多少钱？

Four people, A, B, C, and D, raised 1.2 million yuan to start a business. The money from A belongs to the other 3 people (1/3), the money from B belongs to the other 3 people (1/4), the money from C belongs to the other 3 people (1/5), how much money does D give ?

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">(1/4) + (1/5) + (1/6)</gadget>
<output>37/60 = around 0.616667</output>
<gadget id="calculator">1 - (37/60)</gadget>
<output>23/60 = around 0.383333</output>
<gadget id="calculator">120 * (23/60)</gadget>
<output>46</output>
<result>46</result>


4辆汽车3次运水泥960袋，平均每辆汽车每次运水泥多少袋？

4 vehicles transport 960 bags of cement three times, how many bags of cement are transported by each vehicle on average?

<gadget id="calculator">960 / 3 / 4</gadget>
<output>80</output>
<result>80</result>


把一项工程平均分给甲、乙两人同时工作，两人工作12天，共完成这项工程的80%，已知甲的工效是乙的工效的60%，求甲还要几天才能完成分配给自己的工作任务？

A project is divided equally between A and B to work at the same time. They work for 12 days and complete 80% of the project. It is known that A's work efficiency is 60% of B's work efficiency. Ask A how many days it will take to complete the project. Complete the work tasks assigned to yourself?

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>
<gadget id="calculator">1 / (3/5)</gadget>
<output>5/3 = around 1.666667</output>
<gadget id="calculator">(5/3) * 12</gadget>
<output>20</output>
<gadget id="calculator">12 + 20</gadget>
<output>32</output>
<gadget id="calculator">(4/5) / 32</gadget>
<output>1/40 = around 0.025</output>
<gadget id="calculator">(1/2) / (1/40)</gadget>
<output>20</output>
<gadget id="calculator">20 - 12</gadget>
<output>8</output>
<result>8</result>


一个数除以8，商是最大的一位数，这个被除数是多少

When a number is divided by 8, the quotient is the largest single digit, what is the dividend?

<gadget id="calculator">8 * 9</gadget>
<output>72</output>
<result>72</result>


If A: B﹦(1/7), then (A*7): (B*7)﹦ how much.

<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>
<result>1/7 = around 0.142857</result>


一块正方形菜地与一块正方形菜地的周长相等，正方形菜地的边长12米，长方形菜地的长14米．长方形菜地的宽多少米？

A square vegetable field has the same perimeter as a square vegetable field, the side length of a square vegetable field is 12 meters, and the length of a rectangular vegetable field is 14 meters. How many meters is the width of the rectangular vegetable field?

<gadget id="calculator">4 / 2</gadget>
<output>2</output>
<gadget id="calculator">12 * 2</gadget>
<output>24</output>
<gadget id="calculator">24 - 14</gadget>
<output>10</output>
<result>10</result>


17与19的和，去除80与44的差，商是多少？

What is the quotient of the sum of 17 and 19 and the difference between 80 and 44?

<gadget id="calculator">80 - 44</gadget>
<output>36</output>
<gadget id="calculator">17 + 19</gadget>
<output>36</output>
<gadget id="calculator">36 / 36</gadget>
<output>1</output>
<result>1</result>


小明期中数学考试成绩是80分，这次他准备提高(1/5)，这次他准备考多少分．

Xiaoming's mid-term math test score is 80 points, this time he plans to improve (1/5), this time he plans to test how many points.

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>
<gadget id="calculator">80 * (6/5)</gadget>
<output>96</output>
<result>96</result>


小军每分钟大约走65米，他从家到学校大约要走8分钟．他家距学校大约有多远？

Xiaojun walks about 65 meters per minute, and it takes him about 8 minutes to walk from home to school. How far is his home from school?

<gadget id="calculator">65 * 8</gadget>
<output>520</output>
<result>520</result>


三年级1班有男生34人，女生38人，如果每4人分成一组，一共可以分成几组？

There are 34 boys and 38 girls in class 1 of the third grade. If every 4 people are divided into groups, how many groups can they be divided into?

<gadget id="calculator">34 + 38</gadget>
<output>72</output>
<gadget id="calculator">72 / 4</gadget>
<output>18</output>
<result>18</result>


商店运来124筐香蕉，每筐35千克，卖出一些后，还剩54筐，卖出多少千克香蕉？

The store shipped 124 baskets of bananas, each weighing 35 kilograms. After selling some, there were 54 baskets left. How many kilograms of bananas were sold?

<gadget id="calculator">124 - 54</gadget>
<output>70</output>
<gadget id="calculator">70 * 35</gadget>
<output>2_450</output>
<result>2_450</result>


小勇家八月份的电费是85元，安装分时电表后，九月份比八月份减少了(2/17)．求九月份用电费多少元？

The electricity bill of Xiaoyong's family in August was 85 yuan. After installing the time-sharing meter, the electricity bill in September was lower than that in August (2/17). How much is the electricity bill in September?

<gadget id="calculator">2 / 17</gadget>
<output>2/17 = around 0.117647</output>
<gadget id="calculator">1 - (2/17)</gadget>
<output>15/17 = around 0.882353</output>
<gadget id="calculator">85 * (15/17)</gadget>
<output>75</output>
<result>75</result>


同学们做了16朵红花，做的黄花的朵数是红花的(5/4)，又是蓝花的(10/11)．做的蓝花有多少朵？

The students made 16 red flowers, and the number of yellow flowers they made was red (5/4) and blue (10/11). How many blue flowers are there?

<gadget id="calculator">5 / 4</gadget>
<output>5/4 = around 1.25</output>
<gadget id="calculator">10 / 11</gadget>
<output>10/11 = around 0.909091</output>
<gadget id="calculator">(5/4) / (10/11)</gadget>
<output>11/8 = around 1.375</output>
<gadget id="calculator">16 * (11/8)</gadget>
<output>22</output>
<result>22</result>


What is the quotient of 84 divided by 6?

<gadget id="calculator">84 / 6</gadget>
<output>14</output>
<result>14</result>


下列各四个数中，多少最接近1．

Which of the following four numbers is closest to 1?

<gadget id="calculator">8 / 9</gadget>
<output>8/9 = around 0.888889</output>
<gadget id="calculator">1 - (8/9)</gadget>
<output>1/9 = around 0.111111</output>
<gadget id="calculator">1 / (1/9)</gadget>
<output>9</output>
<result>8/9 = around 0.888889</result>


学校舞蹈队有男生20人，如果女生人数减少(1/5)，就和男生人数相等．学校舞蹈队有女生多少人？

There are 20 boys in the school dance team. If the number of girls is reduced (1/5), it will be equal to the number of boys. How many girls are there in the school dance team?

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">20 / (4/5)</gadget>
<output>25</output>
<result>25</result>


在一个三角形中，∠1=36°，∠2=74°，∠3=多少．

In a triangle, ∠1=36°, ∠2=74°, ∠3=how much.

<gadget id="calculator">180 - 36 - 74</gadget>
<output>70</output>
<result>70</result>


水果店运来香蕉和桔子各20筐，每筐香蕉重35千克，每筐桔子重32千克．运来的香蕉比桔子多多少千克？(用两种方法解答)

fruit shop brings in 20 baskets of bananas and 20 oranges each, each weighing 35 kg of bananas and 32 kg of oranges. How many kilograms more bananas than oranges were shipped? (answer in two ways)

<gadget id="calculator">35 * 20</gadget>
<output>700</output>
<gadget id="calculator">32 * 20</gadget>
<output>640</output>
<gadget id="calculator">700 - 640</gadget>
<output>60</output>
<result>60</result>


在适当的位置添加括号，使等式35*4/10+3-1=84成立．

Add parentheses at appropriate places so that the equation 35*4/10+3-1=84 holds.

<gadget id="calculator">4 / 10</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">3 - 1</gadget>
<output>2</output>
<gadget id="calculator">(2/5) + 2</gadget>
<output>12/5 = around 2.4</output>
<gadget id="calculator">35 * (12/5)</gadget>
<output>84</output>
<result>84</result>


一个等腰三角形的顶角是20°，它的一个底角是多少度．

If the apex angle of an isosceles triangle is 20°, what is the base angle?

<gadget id="calculator">180 - 20</gadget>
<output>160</output>
<gadget id="calculator">160 / 2</gadget>
<output>80</output>
<result>80</result>


安装1200米长的水管，6天安装900米．照这样计算，剩下的还要安装多少天？

Install 1,200 meters of water pipes, 900 meters in 6 days. According to this calculation, how many days are left to install?

<gadget id="calculator">1_200 - 900</gadget>
<output>300</output>
<gadget id="calculator">900 / 6</gadget>
<output>150</output>
<gadget id="calculator">300 / 150</gadget>
<output>2</output>
<result>2</result>