<gadget id="calculator">7.8 - 3</gadget>
<output>4.8</output>
<gadget id="calculator">4.8 / 4</gadget>
<output>1.2</output>
<gadget id="calculator">4 * 1.2</gadget>
<output>4.8</output>
<gadget id="calculator">4.8 - 3</gadget>
<output>1.8</output>
<result>1.8</result>


一个正方形，边长从10厘米变成了7厘米，它的面积减少了多少平方厘米．

If the side length of a square is changed from 10 cm to 7 cm, how many square centimeters does its area decrease?

<gadget id="calculator">10 * 10</gadget>
<output>100</output>
<gadget id="calculator">7 * 7</gadget>
<output>49</output>
<gadget id="calculator">100 - 49</gadget>
<output>51</output>
<result>51</result>


有3个数，它们的平均数是342，如果把这三个数按从小到大的顺序排列起来，那么前两个数的平均数是273，后两个数的平均数是390，中间的数是多少？

There are 3 numbers, and their average is 342. If these three numbers are arranged in ascending order, then the average of the first two numbers is 273, the average of the last two numbers is 390, and the middle What is the number?

<gadget id="calculator">546 + 780</gadget>
<output>1_326</output>
<gadget id="calculator">1_326 - 684</gadget>
<output>642</output>
<result>642</result>


甲乙两地相距120千米，一辆客车和一辆货车同时从甲地驶往乙地，结果客车比货车早半小时到达乙地，已知客、货两车的速度比为(6/5)，求货车的速度是每小时多少千米？

The distance between A and B is 120 kilometers. A passenger car and a truck drive from A to B at the same time. As a result, the passenger car arrives at B half an hour earlier than the truck. It is known that the speed ratio of the passenger car and the freight car is (6/5) , how many kilometers per hour is the speed of the truck?

<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>
<gadget id="calculator">1 - (5/6)</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">0.5 / (1/6)</gadget>
<output>3</output>
<gadget id="calculator">120 / 3</gadget>
<output>40</output>
<result>40</result>


时针走一大格是1小时，分针走一大格是多少分

It is 1 hour when the hour hand moves one division, and how many minutes is one division when the minute hand moves

<gadget id="calculator">60 / 12</gadget>
<output>5</output>
<result>5</result>


一个长方体的体积是30立方米，长5米，宽3米，高多少米．

A cuboid has a volume of 30 cubic meters, a length of 5 meters, a width of 3 meters and a height of 3 meters.

<gadget id="calculator">30 / 5 / 3</gadget>
<output>2</output>
<result>2</result>


两个自然数的差最大值是40，它们的最大公因数是5，则这两个自然数的和最小是多少．

If the maximum difference between two natural numbers is 40 and their greatest common factor is 5, what is the minimum sum of these two natural numbers?

<gadget id="calculator">5 + 45</gadget>
<output>50</output>
<result>50</result>


看一本327页的故事书，已经看了143页，还剩下多少页没看？

Reading a 327-page story book, I have read 143 pages, how many pages are left?

<gadget id="calculator">327 - 143</gadget>
<output>184</output>
<result>184</result>


一块三角形菜地，边长的比是3：4：5，周长为48米，其中最短的边长多少．

triangular vegetable field, the ratio of side lengths is 3:4:5, and the circumference is 48 meters, what is the length of the shortest side?

<gadget id="calculator">3 + 4 + 5</gadget>
<output>12</output>
<gadget id="calculator">3 / 12</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">48 * (1/4)</gadget>
<output>12</output>
<result>12</result>


在比例7：10=21：30中，如果第二项增加它的2倍，那么第四项必须增加多少，比例才能成立．

In the ratio of 7:10=21:30, if the second item doubles, how much must the fourth item increase before the ratio can be established.

<gadget id="calculator">10 * 2</gadget>
<output>20</output>
<gadget id="calculator">10 + 20</gadget>
<output>30</output>
<gadget id="calculator">21 / 7</gadget>
<output>3</output>
<gadget id="calculator">30 * 3</gadget>
<output>90</output>
<gadget id="calculator">90 - 30</gadget>
<output>60</output>
<result>60</result>


玩具厂16个工人，8天生产了3072个玩具，平均每人每天生产多少个玩具？

16 workers in a toy factory produced 3072 toys in 8 days, how many toys per person per day on average?

<gadget id="calculator">3_072 / 8 / 16</gadget>
<output>24</output>
<result>24</result>


一个修路队修一条公路，前4天每天修12.5千米，后5天每天修13.4千米，这个修路队平均每天修路多少千米？

A road repair team repairs a road, 12.5 kilometers a day for the first 4 days, and 13.4 kilometers a day for the next 5 days. How many kilometers does the road repair team repair on average every day?

<gadget id="calculator">12.5 * 4</gadget>
<output>50</output>
<gadget id="calculator">13.4 * 5</gadget>
<output>67</output>
<gadget id="calculator">50 + 67</gadget>
<output>117</output>
<gadget id="calculator">4 + 5</gadget>
<output>9</output>
<gadget id="calculator">117 / 9</gadget>
<output>13</output>
<result>13</result>


学校图书室新进一批图书，第一天借出45本，第二天借出总数的(1/3)，这时剩下的与借出的图书本数一样多，这批新书有多少本？

There is a new batch of books in the school library, 45 books are lent out on the first day, and (1/3) of the total number is lent out on the second day. At this time, the remaining books are as many as the number of books borrowed. How many books are there in this new batch? ?

<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">(1/2) - (1/3)</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">45 / (1/6)</gadget>
<output>270</output>
<result>270</result>


玩具店今天卖了8个同样的溜溜球，每个卖45元，共赚了160元．每个溜溜球的进货价是多少元？

The toy store sold 8 identical yo-yos for 45 yuan each, making a total of 160 yuan. How much is the purchase price of each yo-yo?

<gadget id="calculator">160 / 8</gadget>
<output>20</output>
<gadget id="calculator">45 - 20</gadget>
<output>25</output>
<result>25</result>


方方家住在6楼，每两层楼之间有15级台阶，她从1楼到家，一共要走多少级台阶．

Fang Fang's family lives on the 6th floor, and there are 15 steps between every two floors. How many steps does she have to walk from the 1st floor to her home?

<gadget id="calculator">6 - 1</gadget>
<output>5</output>
<gadget id="calculator">15 * 5</gadget>
<output>75</output>
<result>75</result>


一辆汽车从东城开往西城，行了一段路程后，离西城还有210千米，接着又行了全程的20%，这时已行路程与未行路程的比是3：2．东、西两城相距多少千米？

car drives from the east city to the west city. After traveling for a certain distance, it is 210 kilometers away from the west city, and then travels 20% of the whole journey. At this time, the ratio of the distance traveled to the distance not traveled is 3:2. How many kilometers are there between the east and west cities?

<gadget id="calculator">0.2 - 0.6</gadget>
<output>-0.4</output>
<gadget id="calculator">1 + (-0.4)</gadget>
<output>0.6</output>
<gadget id="calculator">210 / 0.6</gadget>
<output>350</output>
<result>350</result>


两地相距480千米，一艘轮船在其间航行，顺流需要16小时，逆流需要20小时，一艘气艇的速度是每小时50千米，它在其间往返一次需要多少小时．

The distance between the two places is 480 kilometers. It takes 16 hours for a ship to sail downstream and 20 hours for the upstream. The speed of an airship is 50 kilometers per hour. How many hours does it take to go back and forth between the two places?

<gadget id="calculator">480 / 16</gadget>
<output>30</output>
<gadget id="calculator">480 / 20</gadget>
<output>24</output>
<gadget id="calculator">30 - 24</gadget>
<output>6</output>
<gadget id="calculator">6 / 2</gadget>
<output>3</output>
<gadget id="calculator">50 + 3</gadget>
<output>53</output>
<gadget id="calculator">480 / 53</gadget>
<output>480/53 = around 9.056604</output>
<gadget id="calculator">50 - 3</gadget>
<output>47</output>
<gadget id="calculator">480 / 47</gadget>
<output>480/47 = around 10.212766</output>
<gadget id="calculator">(480/53) + (480/47)</gadget>
<output>48_000/2_491 = around 19.26937</output>
<result>48_000/2_491 = around 19.26937</result>


一堆货物80吨，第一次运走了这堆货物的(2/5)，第二次运走了余下的(3/4)，还剩下多少吨？

A pile of 80 tons of goods, (2/5) of this pile of goods was transported for the first time, and the rest (3/4) was transported for the second time, how many tons are left?

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">1 - (3/4)</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">80 * (3/5) * (1/4)</gadget>
<output>12</output>
<result>12</result>


一个长方形的周长是36厘米，长和宽的比是7：2，求长方形的面积？

The perimeter of a rectangle is 36 cm, and the ratio of length to width is 7:2, what is the area of the rectangle?

<gadget id="calculator">36 / 2</gadget>
<output>18</output>
<gadget id="calculator">7 + 2</gadget>
<output>9</output>
<gadget id="calculator">7 / 9</gadget>
<output>7/9 = around 0.777778</output>
<gadget id="calculator">18 * (7/9)</gadget>
<output>14</output>
<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>
<gadget id="calculator">18 * (2/9)</gadget>
<output>4</output>
<gadget id="calculator">14 * 4</gadget>
<output>56</output>
<result>56</result>


甲从东村走向西村，每小时行10千米，乙从西村走向东村，每小时行8千米，如果乙比甲提前1小时动身，则他们恰好在两村中点处相遇，问两村相距多远？

A travels from the East Village to the West Village at 10 kilometers per hour, and B travels from the West Village to the East Village at 8 kilometers per hour. If B starts 1 hour earlier than A, they meet at the midpoint of the two villages. How far are the villages?

<gadget id="calculator">10 - 8</gadget>
<output>2</output>
<gadget id="calculator">8 / 2</gadget>
<output>4</output>
<gadget id="calculator">10 + 8</gadget>
<output>18</output>
<gadget id="calculator">4 * 18</gadget>
<output>72</output>
<gadget id="calculator">72 + 8</gadget>
<output>80</output>
<result>80</result>


商店运来梨30筐，运来的苹果是梨的(9/10)，原来的橘子比苹果多(1/9)，运来橘子多少筐？

The store shipped 30 baskets of pears, the apples shipped were pears (9/10), and the original oranges were more than apples (1/9), how many baskets of oranges were shipped?

<gadget id="calculator">9 / 10</gadget>
<output>9/10 = around 0.9</output>
<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">30 * (9/10) * (10/9)</gadget>
<output>30</output>
<result>30</result>


一块三角形菜地，底边长120米，高80米．如果每平方米地收获油菜籽0.09千克，这块菜地一共棵收获多少千克油菜籽？

triangular vegetable field has a base length of 120 meters and a height of 80 meters. If 0.09 kilograms of rapeseeds are harvested per square meter, how many kilograms of rapeseeds are harvested in this vegetable field?

<gadget id="calculator">480 * 0.09</gadget>
<output>43.2</output>
<result>43.2</result>


某人1000元存入银行，定期两年，年利率为2.52%．到期后，交了5%的利息税，则实得本息多少．

A person deposits 1,000 yuan in the bank for two years, with an annual interest rate of 2.52%. After the maturity date, if the 5% interest tax is paid, how much is the actual principal and interest?

<gadget id="calculator">2.52 / 100</gadget>
<output>0.0252</output>
<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>
<gadget id="calculator">1 - (1/20)</gadget>
<output>19/20 = around 0.95</output>
<gadget id="calculator">1_000 * 0.0252 * 2 * (19/20)</gadget>
<output>47.88</output>
<gadget id="calculator">1_000 + 47.88</gadget>
<output>1_047.88</output>
<result>1_047.88</result>


一件毛衣原价84元，但实际卖的价钱比原价降低了5%，这件毛衣现在卖多少元？

The original price of a sweater is 84 yuan, but the actual selling price is 5% lower than the original price. How much does this sweater sell now?

<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>
<gadget id="calculator">1 - (1/20)</gadget>
<output>19/20 = around 0.95</output>
<gadget id="calculator">84 * (19/20)</gadget>
<output>399/5 = around 79.8</output>
<result>399/5 = around 79.8</result>


科学小组的同学养了48条金鱼，每个鱼缸里养3条，需要多少个金鱼缸？

The students in the science group raised 48 goldfish, 3 in each fish tank, how many goldfish tanks are needed?

<gadget id="calculator">48 / 3</gadget>
<output>16</output>
<result>16</result>


三1班有45人学生，每人都报名参加了科技组或电脑组两个兴趣小组．其中参加科技组的有30人，参加电脑组的有25人，两个兴趣小组都参加的有多少人？

There are 45 students in class 3 and 1, each of whom has signed up for two interest groups, the technology group or the computer group. Among them, 30 people participated in the science and technology group, and 25 people participated in the computer group. How many people participated in both interest groups?

<gadget id="calculator">30 + 25</gadget>
<output>55</output>
<gadget id="calculator">55 - 45</gadget>
<output>10</output>
<result>10</result>


把棱长为3厘米的正方体切成棱长为1厘米的小正方体，可切成多少块．

How many pieces can be cut by cutting a cube with side length 3 cm into smaller cubes with side length 1 cm?

<gadget id="calculator">3 * 3 * 3</gadget>
<output>27</output>
<result>27</result>


6个人一组，我们班有30个人，可以分成几个组？

There are 6 people in a group, there are 30 people in our class, how many groups can we divide into?

<gadget id="calculator">30 / 6</gadget>
<output>5</output>
<result>5</result>


希望小学的学生为地震灾区捐款，平均每个班捐98元，全校有6个年级，每个年级有3个班，他们一共捐了多少钱？

The students of Hope Primary School donated to the earthquake-stricken areas, with an average donation of 98 yuan per class. There are 6 grades in the school, and each grade has 3 classes. How much did they donate in total?

<gadget id="calculator">98 * 3 * 6</gadget>
<output>1_764</output>
<result>1_764</result>


一种食品包装袋，长0.2米，宽0.17米，如果制作500个这样的食品袋，至少需要这样的塑料薄膜多少平方米？

food packaging bag is 0.2 meters long and 0.17 meters wide. If 500 such food bags are made, how many square meters of such plastic film is needed at least?

<gadget id="calculator">0.2 * 0.17 * 500</gadget>
<output>17</output>
<result>17</result>


一只小狗的重量是36千克，一头大象的重量是一只小狗的43倍，一头大象的重量是多少千克？

A puppy weighs 36 kilograms, and an elephant weighs 43 times that of a puppy. How many kilograms does an elephant weigh?

<gadget id="calculator">36 * 43</gadget>
<output>1_548</output>
<result>1_548</result>


找规律填数：1、2、4、7、11、16、22、多少．

Find the law and fill in the numbers: 1, 2, 4, 7, 11, 16, 22, how much.

<gadget id="calculator">22 + 7</gadget>
<output>29</output>
<result>29</result>


第一天交易额达4.5亿元，第二天比第一天减少(1/9)．西部特产交易会前两天的交易额一共有多少亿元？

The transaction volume on the first day reached 450 million yuan, and the second day decreased (1/9) compared to the first day. How many billion yuan was the total transaction volume in the first two days of the Western Specialty Products Fair?

<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>
<gadget id="calculator">1 - (1/9)</gadget>
<output>8/9 = around 0.888889</output>
<gadget id="calculator">4.5 * (8/9)</gadget>
<output>4</output>
<gadget id="calculator">4 + 4.5</gadget>
<output>8.5</output>
<result>8.5</result>


学校举行"趣味数学"竞赛，共20道题，评分标准是：每做对一题得5分，每做错或不做一题倒扣1分，小华参加了这次竞赛，得到82分，问：小华做对几道题．

The school held a "Fun Mathematics" competition, with a total of 20 questions. The scoring standard is: 5 points for each correct answer, and 1 point deducted for each wrong answer or failure to answer a question. Xiaohua participated in this competition and scored 82 points , Ask: How many questions did Xiaohua get right.

<gadget id="calculator">20 * 5</gadget>
<output>100</output>
<gadget id="calculator">100 - 82</gadget>
<output>18</output>
<gadget id="calculator">5 + 1</gadget>
<output>6</output>
<gadget id="calculator">18 / 6</gadget>
<output>3</output>
<gadget id="calculator">20 - 3</gadget>
<output>17</output>
<result>17</result>


六位数391□□□是789的倍数，求这个六位数．

The six-digit number 391□□□ is a multiple of 789, find the six-digit number.

<gadget id="calculator">789 * 496</gadget>
<output>391_344</output>
<result>391_344</result>


一块平行四边形的草地，底为19米，高为11米，求草地的面积．

A parallelogram lawn has a base of 19 meters and a height of 11 meters. Find the area of the lawn.

<gadget id="calculator">19 * 11</gadget>
<output>209</output>
<result>209</result>


红星商场有230台彩电，电冰箱比彩电少120台，两种家电一共多少台？列式正确的是多少

There are 230 color TVs in the Red Star Mall, and 120 fewer refrigerators than the color TVs. How many of the two types of home appliances are there in total? What is the correct column

<gadget id="calculator">230 - 120</gadget>
<output>110</output>
<gadget id="calculator">110 + 230</gadget>
<output>340</output>
<result>340</result>


一根长24米的铁丝，围成一个正方形，围成的正方形的面积是多少？

wire 24 meters long encloses a square, what is the area of the enclosed square?

<gadget id="calculator">24 / 4</gadget>
<output>6</output>
<gadget id="calculator">6 * 6</gadget>
<output>36</output>
<result>36</result>


苹果树比梨树少(1/5)，那么梨树是苹果树的多少

There are fewer apple trees than pear trees (1/5), so how many pear trees are apple trees

<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 / (4/5)</gadget>
<output>5/4 = around 1.25</output>
<result>5/4 = around 1.25</result>


小明每天睡眠时间大约是9小时，占一天时间的多少

Xiao Ming sleeps about 9 hours a day, how much does it take up in a day

<gadget id="calculator">9 / 24</gadget>
<output>3/8 = around 0.375</output>
<result>3/8 = around 0.375</result>


某工厂下半年用煤140.5吨，比上半年多用4.28吨，该工厂全年共用煤多少吨？

A factory used 140.5 tons of coal in the second half of the year, 4.28 tons more than in the first half of the year. How many tons of coal does the factory share throughout the year?

<gadget id="calculator">140.5 - 4.28</gadget>
<output>136.22</output>
<gadget id="calculator">136.22 + 140.5</gadget>
<output>276.72</output>
<result>276.72</result>


甲容器中有4%的盐水150克，从乙容器中取出盐水450克加到甲容器中，和甲容器中的盐水混合成8.2%的盐水，乙容器中盐水的浓度是多少．

There is 150 grams of 4% brine in container A. Take 450 grams of brine from container B and add it to container A, and mix it with the brine in container A to form 8.2% brine. What is the concentration of the brine in container B?

<gadget id="calculator">150 + 450</gadget>
<output>600</output>
<gadget id="calculator">8.2 / 100</gadget>
<output>0.082</output>
<gadget id="calculator">600 * 0.082</gadget>
<output>49.2</output>
<gadget id="calculator">4 / 100</gadget>
<output>1/25 = around 0.04</output>
<gadget id="calculator">150 * (1/25)</gadget>
<output>6</output>
<gadget id="calculator">49.2 - 6</gadget>
<output>43.2</output>
<gadget id="calculator">43.2 / 450</gadget>
<output>0.096</output>
<gadget id="calculator">100 / 100</gadget>
<output>1</output>
<gadget id="calculator">0.096 * 1</gadget>
<output>0.096</output>
<result>0.096</result>


一个包装箱内放一定数量的玩具，甲单独加工一箱玩具要用12小时，乙独立加工一箱玩具要用8小时，两人合作加工完一箱玩具，其中乙加工了42个．一箱玩具有多少个？

There are a certain number of toys in a packing box. It will take 12 hours for A to process a box of toys alone, and 8 hours for B to process a box of toys alone. The two cooperate to process a box of toys, and B has processed 42 toys. How many toys are there in a box?

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>
<gadget id="calculator">42 * (2/3)</gadget>
<output>28</output>
<gadget id="calculator">28 + 42</gadget>
<output>70</output>
<result>70</result>


一桶油，如果倒出油的(1/4)，连桶重19千克，如果倒出油的(1/3)，连桶重17千克，这桶油重多少千克？

A barrel of oil, if the oil is poured out (1/4), the weight of the barrel is 19 kg, and if the oil is poured out (1/3), the weight of the barrel is 17 kg, how much does the barrel of oil weigh?

<gadget id="calculator">19 - 16</gadget>
<output>3</output>
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</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">1 - (1/4) - (2/3)</gadget>
<output>1/12 = around 0.083333</output>
<gadget id="calculator">3 / (1/12)</gadget>
<output>36</output>
<result>36</result>


做一个长5cm，宽3cm，高1cm的长方体纸盒，至少需要纸板多少cm**2．

To make a cuboid carton with a length of 5cm, a width of 3cm and a height of 1cm, at least how many centimeters of cardboard are needed**2.

<gadget id="calculator">5 * 3</gadget>
<output>15</output>
<gadget id="calculator">5 * 1</gadget>
<output>5</output>
<gadget id="calculator">3 * 1</gadget>
<output>3</output>
<gadget id="calculator">15 + 5 + 3</gadget>
<output>23</output>
<gadget id="calculator">23 * 2</gadget>
<output>46</output>
<result>46</result>


把一个正方体切成两个完全一样的长方体，表面积增加了20平方厘米．这个正方体的表面积是多少平方厘米．

Cutting a cube into two identical cuboids increases the surface area by 20 square centimeters. What is the surface area of this cube in square centimetres.

<gadget id="calculator">20 / 2</gadget>
<output>10</output>
<gadget id="calculator">10 * 6</gadget>
<output>60</output>
<result>60</result>


食堂原有34袋大米，又运来6袋．食堂每周吃4袋大米．这些大米够吃几周的？

The cafeteria originally had 34 bags of rice, but another 6 bags were brought in. The cafeteria eats 4 bags of rice every week. Is this enough rice for a few weeks?

<gadget id="calculator">34 + 6</gadget>
<output>40</output>
<gadget id="calculator">40 / 4</gadget>
<output>10</output>
<result>10</result>


运输队分两次运一批大米，第一次运了总数的(3/10)，第二次运了总数的(4/15)，第一次比第二次多运了40包，这批大米共有多少包？

The transport team transported a batch of rice twice, the first transported 3/10 of the total, the second transported 4/15 of the total, and the first transported 40 more packs than the second. How many packages of rice are there in total?


甲、乙两个油桶中共有100千克油，将乙桶中的15千克油注入甲桶，此时甲桶中的油是乙桶中的油的4倍．那么，原来甲桶中油比乙桶中的油多多少千克．

and B have 100 kg of oil in total, and 15 kg of oil in B is poured into A. At this time, the oil in A is 4 times that of B. So, how many kilograms of oil is in barrel A more than that in barrel B?

<gadget id="calculator">1 + 4</gadget>
<output>5</output>
<gadget id="calculator">100 / 5</gadget>
<output>20</output>
<gadget id="calculator">4 * 20</gadget>
<output>80</output>
<gadget id="calculator">1 * 20</gadget>
<output>20</output>
<gadget id="calculator">20 + 15</gadget>
<output>35</output>
<gadget id="calculator">80 - 15 - 35</gadget>
<output>30</output>
<result>30</result>


东西两地相距9千米，小明从东向西走，每分钟走60米，小莉从西向东走，小辉骑车从东向西走，每分钟300米，三人同时动身，途中小辉遇见小莉即折回向东骑，遇见小明又折回向西骑，再遇见小莉又折回向东骑，…这样往返，如果小辉第二次返回遇见小明时，小明与小莉相距恰好1千米，那么小莉每分钟走多少米．

The distance between the east and the west is 9 kilometers. Xiaoming walks from east to west at 60 meters per minute. Xiaoli walks from west to east. Xiaohui rides a bicycle from east to west at 300 meters per minute. When Hui met Xiao Li, he turned back and rode eastward, when he met Xiao Ming, he turned back and rode westward, and when he met Xiao Li again, he turned back and rode eastward,... In this way, if Xiao Hui returns to meet Xiao Ming for the second time, the distance between Xiao Ming and Xiao Li is exactly 1 Kilometers, how many meters does Xiao Li walk per minute?

<gadget id="calculator">5 / 3</gadget>
<output>5/3 = around 1.666667</output>
<gadget id="calculator">60 * (5/3)</gadget>
<output>100</output>
<result>100</result>


配制一种生理盐水，盐和水的质量比是1：25，如果有盐18千克，需加水多少千克？

To prepare a physiological saline, the mass ratio of salt to water is 1:25, if there are 18 kg of salt, how much water should be added?

<gadget id="calculator">18 / 1</gadget>
<output>18</output>
<gadget id="calculator">18 * 25</gadget>
<output>450</output>
<result>450</result>


老王步行从家去县城，每小时5千米，回家时骑车，每小时13千米，往返一共用了3.6小时．老王家距县城多少千米．

Pharaoh walked from home to the county town at 5 kilometers per hour, and rode his bicycle at 13 kilometers per hour when he returned home. The round trip took 3.6 hours. How many kilometers is the old Wang's house from the county seat?

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">1 / 13</gadget>
<output>1/13 = around 0.076923</output>
<gadget id="calculator">(1/5) + (1/13)</gadget>
<output>18/65 = around 0.276923</output>
<gadget id="calculator">3.6 / (18/65)</gadget>
<output>13</output>
<result>13</result>


养鸭场的叔叔准备用篱笆靠一边河岸围一个长20米，宽10米的长方形鸭场，为了节省材料，他应该把哪边靠着河岸？这时篱笆的周长是多少米？

The uncle of the duck farm is going to use a fence on one side of the river bank to enclose a rectangular duck farm with a length of 20 meters and a width of 10 meters. In order to save materials, which side should he put on the river bank? What is the perimeter of the fence at this time?

<gadget id="calculator">10 * 2</gadget>
<output>20</output>
<gadget id="calculator">20 + 20</gadget>
<output>40</output>
<result>40</result>


☆/8=7…□中被除数最大是多少

<gadget id="calculator">8 - 1</gadget>
<output>7</output>
<gadget id="calculator">7 * 8</gadget>
<output>56</output>
<gadget id="calculator">56 + 7</gadget>
<output>63</output>
<result>63</result>


把一根长8米的长方体木棒，平均截成4段，表面积增加了60平方分米，这根木棒的原有体积是多少立方分米．

A cuboid wooden stick with a length of 8 meters is cut into 4 sections on average, and the surface area is increased by 60 square decimeters. What is the original volume of the wooden stick in cubic decimeters?

<gadget id="calculator">60 / 6</gadget>
<output>10</output>
<gadget id="calculator">10 * 8 * 10</gadget>
<output>800</output>
<result>800</result>


便民饭店10袋大米和6袋面粉一共用了472元．每袋大米28元，每袋面粉多少钱？(列方程解决问题)

The total cost of 10 bags of rice and 6 bags of flour in the convenience restaurant was 472 yuan. 28 yuan per bag of rice, how much is each bag of flour? (column equations to solve problems)

<gadget id="calculator">28 * 10</gadget>
<output>280</output>
<gadget id="calculator">472 - 280</gadget>
<output>192</output>
<gadget id="calculator">192 / 6</gadget>
<output>32</output>
<result>32</result>


红星小学三年级有98人，四年级有123人，三年级比四年级少多少人？

There are 98 students in the third grade and 123 students in the fourth grade in Hongxing Primary School. How many fewer students are in the third grade than in the fourth grade?

<gadget id="calculator">123 - 98</gadget>
<output>25</output>
<result>25</result>


参观科技馆的一共有456人，其中儿童人数是成人的2倍．成人有多少人？

A total of 456 people visited the Science and Technology Museum, among which the number of children was twice that of adults. How many adults are there?

<gadget id="calculator">2 + 1</gadget>
<output>3</output>
<gadget id="calculator">456 / 3</gadget>
<output>152</output>
<result>152</result>


有两条纸带，一条长21厘米，一条长13厘米，把两条纸带都剪下同样长的一段后，发现短纸带剩下的长度是长纸带剩下的长度的2倍，剪下的一段有多长？(列式解答)

There are two paper tapes, one is 21 cm long and the other is 13 cm long. After cutting the two paper tapes to the same length, it is found that the remaining length of the short paper tape is twice the remaining length of the long paper tape. How long is the cut section? (column solution)

<gadget id="calculator">13 * 2</gadget>
<output>26</output>
<gadget id="calculator">26 - 21</gadget>
<output>5</output>
<gadget id="calculator">2 - 1</gadget>
<output>1</output>
<gadget id="calculator">5 / 1</gadget>
<output>5</output>
<result>5</result>


一年级有120个新同学．40个人分一班，分成了几班？

There are 120 new students in the first grade. 40 people are divided into one class, how many classes are divided into?

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


8：00的时候，分针和时针形成的角度是多少．

At 8:00, what is the angle formed by the minute hand and the hour hand?

<gadget id="calculator">30 * 4</gadget>
<output>120</output>
<result>120</result>


去年靠山乡收小麦18.5万吨，今年比去年增产二成，今年收小麦多少万吨．

Last year, Kaoshan Township harvested 185,000 tons of wheat, and this year it has increased by 20% compared to last year. How many tons of wheat will it harvest this year?

<gadget id="calculator">20 / 100</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">18.5 * (6/5)</gadget>
<output>22.2</output>
<result>22.2</result>


一个圆柱形玻璃缸，底面直径20厘米，把一个钢球放入水中，缸内水面上升了2厘米，求这个钢球的体积．(π取3.1)

A cylindrical glass tank with a bottom diameter of 20 cm, put a steel ball into the water, the water level in the tank rises by 2 cm, find the volume of the steel ball. (π takes 3.1)

<gadget id="calculator">20 / 2</gadget>
<output>10</output>
<gadget id="calculator">10 ** 2</gadget>
<output>100</output>
<gadget id="calculator">3.1 * 100 * 2</gadget>
<output>620</output>
<result>620</result>


边长(3/4)分米的正方形的周长是多少分米．

What is the perimeter of a square with side length (3/4) decimeters?

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


一个滴水的水龙头一个月大约浪费0.37吨水，如果每吨水收费2元，这个滴水的水龙头，一年要浪费水费多少元？

A dripping faucet wastes about 0.37 tons of water a month. If you charge 2 yuan per ton of water, how much water will be wasted a year for this dripping faucet?

<gadget id="calculator">0.37 * 12 * 2</gadget>
<output>8.88</output>
<result>8.88</result>


五一班的男同学人数是女同学的(4/7)，女同学人数占全班的几分之几？

The number of male students in Class 51 is female students (4/7), what percentage of the total number of female students in the class?

<gadget id="calculator">4 / 7</gadget>
<output>4/7 = around 0.571429</output>
<gadget id="calculator">1 + (4/7)</gadget>
<output>11/7 = around 1.571429</output>
<gadget id="calculator">1 / (11/7)</gadget>
<output>7/11 = around 0.636364</output>
<result>7/11 = around 0.636364</result>


<gadget id="calculator">72 * 12</gadget>
<output>864</output>
<result>864</result>


实验小学从7月2日开始放暑假，9月1日正式开学，暑假一共有多少天．

Experimental Primary School starts summer vacation on July 2nd and officially starts on September 1st. How many days are there in summer vacation?

<gadget id="calculator">31 - 2</gadget>
<output>29</output>
<gadget id="calculator">29 + 1 + 31</gadget>
<output>61</output>
<result>61</result>


已知A、B、C、D、E、F这六个数的平均数是1335；A、B、C、D这四个数的平均数是1964.25，C、D、E、F这四个数的平均数是1031，那么A、B、E、F这四个数的平均数是多少？

It is known that the average of the six numbers A, B, C, D, E, and F is 1335; the average of the four numbers A, B, C, and D is 1964.25, and the four numbers of C, D, E, and F The average of the numbers is 1031, so what is the average of the four numbers A, B, E, and F?

<gadget id="calculator">1_335 * 6</gadget>
<output>8_010</output>
<gadget id="calculator">1_964.25 * 4</gadget>
<output>7_857</output>
<gadget id="calculator">8_010 - 7_857</gadget>
<output>153</output>
<gadget id="calculator">1_031 * 4</gadget>
<output>4_124</output>
<gadget id="calculator">8_010 - 4_124</gadget>
<output>3_886</output>
<gadget id="calculator">153 + 3_886</gadget>
<output>4_039</output>
<gadget id="calculator">4_039 / 4</gadget>
<output>4_039/4 = around 1_009.75</output>
<result>4_039/4 = around 1_009.75</result>


一个数分别除以10、12都余5，这个数最小是多少．

If a number is divided by 10 and 12, the remainder is 5. What is the smallest number?

<gadget id="calculator">2 * 2 * 3 * 5</gadget>
<output>60</output>
<gadget id="calculator">60 + 5</gadget>
<output>65</output>
<result>65</result>


瑞金红色旅游文化节从10月30日开始，持续到11月2日，活动进行了多少天．

The Ruijin Red Tourism Culture Festival started on October 30th and lasted until November 2nd. How many days did the event last?

<gadget id="calculator">2 + 2</gadget>
<output>4</output>
<result>4</result>


一根绳子剪去部分是剩下的(1/6)，如果多剪10厘米，则剪去的部分是剩下的(1/5)．这根绳子全长多少厘米？

The cut part of a rope is the rest (1/6). If you cut 10 cm more, the cut part is the rest (1/5). How long is this rope in centimeters?

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">(1/5) * 10</gadget>
<output>2</output>
<gadget id="calculator">10 + 2</gadget>
<output>12</output>
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">(1/5) - (1/6)</gadget>
<output>1/30 = around 0.033333</output>
<gadget id="calculator">12 / (1/30)</gadget>
<output>360</output>
<gadget id="calculator">360 * (1/6)</gadget>
<output>60</output>
<gadget id="calculator">360 + 60</gadget>
<output>420</output>
<result>420</result>


学校修缮一幢教学楼，用了18万元，比计划节约了(1/6)，节约了几万元？

The school spent 180,000 yuan to repair a teaching building, which was 1/6 less than the plan. How many yuan was saved?

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">1 - (1/6)</gadget>
<output>5/6 = around 0.833333</output>
<gadget id="calculator">18 / (5/6)</gadget>
<output>108/5 = around 21.6</output>
<gadget id="calculator">(108/5) - 18</gadget>
<output>18/5 = around 3.6</output>
<result>18/5 = around 3.6</result>


科技书和文艺书共450本，其中科技书占总数的(2/9)，现在又买了一些科技书，此时科技书占总数的(2/7)．又买来多少本科技书？

There are 450 scientific and literary books, among which scientific books account for 2/9 of the total, and now I have bought some technical books, which now account for 2/7 of the total. How many technical books did you buy?

<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>
<gadget id="calculator">450 * (2/7)</gadget>
<output>900/7 = around 128.571429</output>
<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>
<gadget id="calculator">450 * (2/9)</gadget>
<output>100</output>
<gadget id="calculator">(900/7) - 100</gadget>
<output>200/7 = around 28.571429</output>
<gadget id="calculator">1 - (2/7)</gadget>
<output>5/7 = around 0.714286</output>
<gadget id="calculator">(200/7) / (5/7)</gadget>
<output>40</output>
<result>40</result>


<gadget id="calculator">14.5 * 9.9</gadget>
<output>143.55</output>
<gadget id="calculator">5.5 * 10.1</gadget>
<output>55.55</output>
<gadget id="calculator">143.55 + 55.55</gadget>
<output>199.1</output>
<result>199.1</result>


某文化用品店，所有商品八五折出售，一种乒乓球拍，原来每副售价30元，现在买可以便宜多少元？

In a stationery store, all products are sold at a 15% discount. A table tennis racket used to cost 30 yuan per pair. How much cheaper can I buy now?

<gadget id="calculator">85 / 100</gadget>
<output>17/20 = around 0.85</output>
<gadget id="calculator">1 - (17/20)</gadget>
<output>3/20 = around 0.15</output>
<gadget id="calculator">30 * (3/20)</gadget>
<output>9/2 = around 4.5</output>
<result>9/2 = around 4.5</result>


一个长方体的表面积是40平方厘米，把它分割成两个完全一样的正方体，每个正方体的体积是多少立方厘米．

The surface area of a cuboid is 40 square centimeters. If it is divided into two identical cubes, what is the volume of each cube?

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


毛毛和小兵在同一个商店买同一种练习本，毛毛买了6本，小兵买了4本，毛毛比小兵多付了8角钱．每本练习本的价格是多少

Mao Mao and Xiao Bing bought the same exercise book in the same store, Mao Mao bought 6 books, and Xiao Bing bought 4 books, and Mao Mao paid 80 cents more than Xiao Bing. what is the price of each exercise book

<gadget id="calculator">6 - 4</gadget>
<output>2</output>
<gadget id="calculator">8 / 2</gadget>
<output>4</output>
<result>4</result>


一个比是3：5，如果前项增加6，则后项应扩大多少倍．

A ratio is 3:5, if the former item is increased by 6, how many times should the latter item be enlarged.

<gadget id="calculator">6 / 3</gadget>
<output>2</output>
<gadget id="calculator">2 + 1</gadget>
<output>3</output>
<result>3</result>


一辆大巴从杭州湾跨海大桥的南岸开往北岸，行驶了约36千米，用了20分钟，这辆大巴每小时的速度是多少千米

A bus drove from the south bank of the Hangzhou Bay Bridge to the north bank. It took about 36 kilometers and took 20 minutes. What is the speed of this bus in kilometers per hour?

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">36 / (1/3)</gadget>
<output>108</output>
<result>108</result>


木器厂有一块棱长6分米的正方体木料．如果用这块木块加工成一个最大的圆锥，圆锥的体积是多少立方分米？

A woodwork factory has a cube of wood with a side length of 6 decimeters. If this piece of wood is used to form the largest cone, what is the volume of the cone in cubic decimeters?

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">6 / 2</gadget>
<output>3</output>
<gadget id="calculator">3 ** 2</gadget>
<output>9</output>
<gadget id="calculator">(1/3) * 3.14 * 9 * 6</gadget>
<output>56.52</output>
<result>56.52</result>


一种电视机现在售价1700元，比原来每台降价800元，降价百分之几？

A TV is now priced at 1,700 yuan, which is 800 yuan lower than the original price. How much is the price cut?

<gadget id="calculator">1_700 + 800</gadget>
<output>2_500</output>
<gadget id="calculator">800 / 2_500</gadget>
<output>8/25 = around 0.32</output>
<result>8/25 = around 0.32</result>


在45*25=1125中，一个因数乘5，另一个因数除以5，积是多少

In 45*25=1125, one factor is multiplied by 5 and the other factor is divided by 5. What is the product?

<gadget id="calculator">45 * 25</gadget>
<output>1_125</output>
<result>1_125</result>


果园里有梨树560棵，□苹果树有多少棵？列式为560*(1+(1/8))的已知条件为苹果树比梨树多多少

There are 560 pear trees in the orchard, □How many apple trees are there? The known condition of the column formula is 560*(1+(1/8)) is how much more apple trees are than pear trees

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>
<result>1/8 = around 0.125</result>


商店上午卖出布鞋48双，下午比上午多卖出14双．上午和下午一共卖出布鞋多少双？

The store sold 48 pairs of cloth shoes in the morning, and 14 more pairs in the afternoon than in the morning. How many pairs of cloth shoes were sold in the morning and afternoon?

<gadget id="calculator">48 + 14</gadget>
<output>62</output>
<gadget id="calculator">62 + 48</gadget>
<output>110</output>
<result>110</result>


学校买来6箱图书，每箱50本，平均分给4个年级，每个年级分多少本？

The school bought 6 boxes of books, 50 books in each box, and distributed them to 4 grades on average. How many books are distributed to each grade?

<gadget id="calculator">6 / 4</gadget>
<output>3/2 = around 1.5</output>
<gadget id="calculator">50 * (3/2)</gadget>
<output>75</output>
<result>75</result>


有三堆煤，第一堆有(2/5)吨，比第二堆少(1/8)吨，第二堆比第三堆少(1/8)，第三堆有煤多少吨．

There are three piles of coal, the first pile has (2/5) tons, which is (1/8) less than the second pile, the second pile is (1/8) less than the third pile, and the third pile has how many tons of coal.

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>
<gadget id="calculator">(2/5) + (1/8)</gadget>
<output>21/40 = around 0.525</output>
<gadget id="calculator">1 - (1/8)</gadget>
<output>7/8 = around 0.875</output>
<gadget id="calculator">(21/40) / (7/8)</gadget>
<output>3/5 = around 0.6</output>
<result>3/5 = around 0.6</result>


66.06这个数个位上的"6"是百分位上的"6"的多少倍．

How many times is the "6" in the digit of 66.06 the "6" in the percentile?

<gadget id="calculator">1 / 100</gadget>
<output>1/100 = around 0.01</output>
<gadget id="calculator">1 / (1/100)</gadget>
<output>100</output>
<result>100</result>


一个长方形的长是6厘米，宽是2厘米．以它的长为轴旋转一周所得到的圆柱的体积是多少立方厘米．

A rectangle has a length of 6 cm and a width of 2 cm. What is the volume of the cylinder obtained by rotating it once about its length in cubic centimeters?

<gadget id="calculator">2 ** 2</gadget>
<output>4</output>
<gadget id="calculator">3.14 * 4 * 6</gadget>
<output>75.36</output>
<result>75.36</result>


一堆货物60吨，第一次用去总数的(1/3)，第二次用去总数的(2/5)，两次共用去多少吨货物？

A pile of 60 tons of goods, (1/3) of the total amount is used for the first time, and (2/5) of the total amount is used for the second time, how many tons of goods are shared between the two times?

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">(1/3) + (2/5)</gadget>
<output>11/15 = around 0.733333</output>
<gadget id="calculator">60 * (11/15)</gadget>
<output>44</output>
<result>44</result>


一个篮球打九折出售后，售价72元，原价多少元．

After a basketball is sold with a 10% discount, the price is 72 yuan, how much is the original price.

<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>
<gadget id="calculator">72 / (9/10)</gadget>
<output>80</output>
<result>80</result>


万明最近4次数学测验的平均分是68分，他想在下次数学测验后将平均分提高到70分以上．那么下次数学测试他至少要得多少分？

The average score of Wan Ming's last 4 math tests is 68, and he wants to raise the average score to over 70 after the next math test. So what is the minimum score he needs for the next math test?

<gadget id="calculator">70 * 5</gadget>
<output>350</output>
<gadget id="calculator">68 * 4</gadget>
<output>272</output>
<gadget id="calculator">350 - 272</gadget>
<output>78</output>
<result>78</result>


一个棱长是25厘米的正方体油桶装满油，如果每升油重4千克，这桶油重多少千克？

square oil barrel with a side length of 25 cm is filled with oil. If the oil weighs 4 kg per liter, how much does the oil weigh in the barrel?

<gadget id="calculator">25 / 1_000</gadget>
<output>1/40 = around 0.025</output>
<gadget id="calculator">25 * 25 * (1/40) * 4</gadget>
<output>125/2 = around 62.5</output>
<result>125/2 = around 62.5</result>


A、B、C、D四个数两两配对，可以配成六对，这六对的平均数分别是12、13、15、17、19、20．那么原来这四个数的和是多少．

The four numbers A, B, C, and D are paired in pairs to form six pairs. The average numbers of these six pairs are 12, 13, 15, 17, 19, and 20 respectively. So what is the sum of these four numbers?

<gadget id="calculator">12 + 13 + 15 + 17 + 19 + 20</gadget>
<output>96</output>
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>
<gadget id="calculator">96 * (2/3)</gadget>
<output>64</output>
<result>64</result>


某班同学先在礼堂前的圆形花坛的周围每隔8分米放一盆花，正好放了15盆，现改为每隔5分米放一盆花，其中有多少盆花不用移动？

A classmate first placed a pot of flowers every 8 decimeters around the circular flower bed in front of the auditorium, exactly 15 pots were placed, and now they put a pot of flowers every 5 decimeters, how many pots of flowers do not need to be moved?


二年级同学去看电影，买了82张票，后来退了9张．二年级有多少同学看了电影．

A second-grade student went to the movies, bought 82 tickets, and returned 9 tickets. How many students in the second grade watched the movie?

<gadget id="calculator">82 - 9</gadget>
<output>73</output>
<result>73</result>


篮球的数量比排球多(1/8)，篮球的数量是排球的((())/(()))．

There are more basketballs than volleyballs (1/8), and there are as many basketballs as volleyballs ((())/(())).

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>
<gadget id="calculator">1 + (1/8)</gadget>
<output>9/8 = around 1.125</output>
<result>9/8 = around 1.125</result>


把一张纸长为6分米，宽为4分米的红纸剪成一个最大的圆，剪掉的部分的面积是多少？

Cut a piece of red paper with a length of 6 decimeters and a width of 4 decimeters into the largest circle, what is the area of the cut part?

<gadget id="calculator">4 * 6</gadget>
<output>24</output>
<gadget id="calculator">4 / 2</gadget>
<output>2</output>
<gadget id="calculator">2 ** 2</gadget>
<output>4</output>
<gadget id="calculator">3.14 * 4</gadget>
<output>12.56</output>
<gadget id="calculator">24 - 12.56</gadget>
<output>11.44</output>
<result>11.44</result>


钟面上的4时，时针和分针所成的角是多少°

What is the angle formed by the hour and minute hands at 4 o'clock on the clock face?

<gadget id="calculator">360 / 12</gadget>
<output>30</output>
<gadget id="calculator">30 * 4</gadget>
<output>120</output>
<result>120</result>


有四个分数(9/20)，(8/19)，(15/31)，(8/23)，其中，最大的分数与最小的分数的和等于多少．

There are four scores (9/20), (8/19), (15/31), (8/23), among them, what is the sum of the largest score and the smallest score.

<gadget id="calculator">15 / 31</gadget>
<output>15/31 = around 0.483871</output>
<gadget id="calculator">8 / 23</gadget>
<output>8/23 = around 0.347826</output>
<gadget id="calculator">(15/31) + (8/23)</gadget>
<output>593/713 = around 0.831697</output>
<result>593/713 = around 0.831697</result>


小明的妈妈在家电超市买了一台八折的彩电，用了2400元，过了几天，商场又将这种彩电以最初价格的七五折出售，相比之下妈妈多花了多少钱？

Xiao Ming's mother bought a color TV with 20% discount in the home appliance supermarket, and spent 2,400 yuan. After a few days, the mall sold this color TV at 25% off the original price. Compared with how much money my mother spent ?

<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">2_400 / (4/5)</gadget>
<output>3_000</output>
<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">3_000 * (3/4)</gadget>
<output>2_250</output>
<gadget id="calculator">2_400 - 2_250</gadget>
<output>150</output>
<result>150</result>


某车间生产了1200个零件，比原计划超额完成5%，原计划生产零件多少个？多少

A workshop has produced 1,200 parts, which is 5% more than the original plan. How many parts were originally planned to be produced? How many

<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>
<gadget id="calculator">1 + (1/20)</gadget>
<output>21/20 = around 1.05</output>
<gadget id="calculator">1_200 / (21/20)</gadget>
<output>8_000/7 = around 1_142.857143</output>
<result>8_000/7 = around 1_142.857143</result>


某天早上8点甲从B地出发，同时乙从A地同向出发追甲，结果在距离B地9千米的地方追上．如果乙把速度提高一倍，而甲的速度不变，或者乙提前40分钟出发，那么将在距离B地2千米处追上．请问：A、B两地相距多少千米？

One day at 8 o'clock in the morning, A set off from point B, and at the same time, B set off from point A in the same direction to chase A, and finally caught up at a place 9 kilometers away from point B. If B doubles his speed and A's speed remains the same, or B starts 40 minutes earlier, then he will catch up at a distance of 2 kilometers from B. Question: How far is the distance between A and B?

<gadget id="calculator">22 - 18</gadget>
<output>4</output>
<gadget id="calculator">9 - 4</gadget>
<output>5</output>
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">2 * (4/5)</gadget>
<output>8/5 = around 1.6</output>
<gadget id="calculator">(8/5) + 2</gadget>
<output>18/5 = around 3.6</output>
<result>18/5 = around 3.6</result>


将一个长10厘米、宽8厘米的长方形纸片以其中一边为轴旋转一周，这个纸片转过的空间图形是什么形体？这个形体的最大体积是多少？

If a rectangular piece of paper with a length of 10 cm and a width of 8 cm is rotated around one side of the axis, what is the shape of the spatial figure that the paper rotates around? What is the maximum volume of this shape?

<gadget id="calculator">10 ** 2</gadget>
<output>100</output>
<gadget id="calculator">3.14 * 100 * 8</gadget>
<output>2_512</output>
<result>2_512</result>


王大妈以1元钱2个苹果的价钱买进一筐苹果，又以2元钱3个苹果的价格把这些苹果全部卖出，结果一共赚的利润20元．王大妈买进的一筐苹果有多少个．

Aunt Wang bought a basket of apples at the price of 1 yuan and 2 apples, and then sold all these apples at the price of 2 yuan and 3 apples. As a result, she made a total profit of 20 yuan. How many apples did Aunt Wang buy in a basket?

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">(2/3) - (1/2)</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">20 / (1/6)</gadget>
<output>120</output>
<result>120</result>


一堆圆锥形黄沙，底面周长是25.12米，高1.5米，每立方米的黄沙重2吨，这堆沙重多少吨？

conical pile of yellow sand has a bottom circumference of 25.12 meters and a height of 1.5 meters. Each cubic meter of yellow sand weighs 2 tons. How many tons does this pile of sand weigh?

<gadget id="calculator">25.12 / 3.14 / 2</gadget>
<output>4</output>
<gadget id="calculator">4 ** 2</gadget>
<output>16</output>
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">3.14 * 16 * 1.5 * (1/3) * 2</gadget>
<output>50.24</output>
<result>50.24</result>


六年级学生今天的出勤率是94%，有3人缺勤，这个班一个有多少名学生？

The attendance rate of sixth grade students today is 94%, and 3 people are absent. How many students are there in this class?

<gadget id="calculator">94 / 100</gadget>
<output>47/50 = around 0.94</output>
<gadget id="calculator">1 - (47/50)</gadget>
<output>3/50 = around 0.06</output>
<gadget id="calculator">3 / (3/50)</gadget>
<output>50</output>
<result>50</result>


火车从A地开往B地，每小时行60千米，6小时到达，火车提速后，若要4小时到达，火车提速后每小时行多少千米？

A train travels from A to B at 60 kilometers per hour and arrives in 6 hours. After the train speeds up, if it takes 4 hours to arrive, how many kilometers per hour will the train travel after speeding up?

<gadget id="calculator">6 / 4</gadget>
<output>3/2 = around 1.5</output>
<gadget id="calculator">60 * (3/2)</gadget>
<output>90</output>
<result>90</result>


一个圆柱形水桶，高62.8cm，它的侧面展开是一个正方形，做这样的无盖水桶至少需要多少铁皮？

A cylindrical bucket is 62.8cm high, and its side is a square. How much iron sheet is needed to make such a bucket without a lid?

<gadget id="calculator">62.8 * 62.8</gadget>
<output>3_943.84</output>
<gadget id="calculator">62.8 / 3.14 / 2</gadget>
<output>10</output>
<gadget id="calculator">10 ** 2</gadget>
<output>100</output>
<gadget id="calculator">3.14 * 100</gadget>
<output>314</output>
<gadget id="calculator">3_943.84 + 314</gadget>
<output>4_257.84</output>
<result>4_257.84</result>


某班有学生48人，每人至少参加绘画和舞蹈中的一样．其中有(7/12)的学生参加绘画，有(1/4)的学生两样都参加．参加舞蹈的有多少人？

There are 48 students in a certain class, each of whom participates in painting and dancing at least as much. Among them, (7/12) students participated in painting, and (1/4) students participated in both. How many people take part in the dance?

<gadget id="calculator">7 / 12</gadget>
<output>7/12 = around 0.583333</output>
<gadget id="calculator">1 - (7/12)</gadget>
<output>5/12 = around 0.416667</output>
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">(5/12) + (1/4)</gadget>
<output>2/3 = around 0.666667</output>
<gadget id="calculator">48 * (2/3)</gadget>
<output>32</output>
<result>32</result>


比一个数的40%多12的数是30，求这个数(列方程，并求解)

The number 12 more than 40% of a number is 30. Find this number (list the equation and solve it)

<gadget id="calculator">30 - 12</gadget>
<output>18</output>
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">18 / (2/5)</gadget>
<output>45</output>
<result>45</result>


360*50的积的末尾有多少个0．

How many zeros are there at the end of the product of 360*50?


一种长方体铁皮烟囱底地面是边长3分米的正方形，高4米，制作50个这样的烟囱，至少要用铁皮多少平方米？

A cuboid iron chimney has a bottom floor of 3 decimeters square and a height of 4 meters. To make 50 such chimneys, how many square meters of iron sheet should be used at least?

<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>
<gadget id="calculator">(3/10) * 4 * 4 * 50</gadget>
<output>240</output>
<result>240</result>


工程队要修一段路．原计划每天修120米，需60天完成；现在要提前20天完成，每天要修多少米？

The engineering team has to repair a section of road. The original plan was to repair 120 meters per day, which would take 60 days to complete; now it needs to be completed 20 days ahead of schedule, how many meters should be repaired per day?

<gadget id="calculator">120 * 60</gadget>
<output>7_200</output>
<gadget id="calculator">60 - 20</gadget>
<output>40</output>
<gadget id="calculator">7_200 / 40</gadget>
<output>180</output>
<result>180</result>


有红、黄、蓝三种颜色的小棒各5支，混放在一起，从中至少抽出多少支，才保证一定有2支同色的小棒．

There are 5 small sticks of red, yellow, and blue colors, and they are mixed together. At least how many sticks are drawn from them to ensure that there must be 2 small sticks of the same color.

<gadget id="calculator">3 + 1</gadget>
<output>4</output>
<result>4</result>


一个圆柱和一个圆锥的体积和底面积相等，圆柱的高是9厘米，圆锥的高是多少cm

A cylinder and a cone have the same volume and base area, the height of the cylinder is 9 cm, what is the height of the cone in cm

<gadget id="calculator">9 * 3</gadget>
<output>27</output>
<result>27</result>


小红读一本180页的书，已经读了全书的(3/5)，已经读了多少页？

Xiaohong reads a 180-page book, and has read (3/5) of the whole book. How many pages have she read?

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>
<gadget id="calculator">180 * (3/5)</gadget>
<output>108</output>
<result>108</result>


淘气用两块同样大小的橡皮泥分别捏成了底面半径都是3厘米的圆柱和圆锥，已知圆锥的高是12厘米，圆柱的高是多少．

Naughty used two pieces of plasticine of the same size to knead a cylinder and a cone with a bottom radius of 3 cm. It is known that the height of the cone is 12 cm. What is the height of the cylinder?

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">12 / 1</gadget>
<output>12</output>
<gadget id="calculator">(1/3) * 12</gadget>
<output>4</output>
<result>4</result>


张大伯家的菜地里种着番茄和辣椒，每两行番茄之间套种一行辣椒．每行番茄宽0.5米，每行辣椒宽0.4米．如果菜地里种了8行番茄，这块菜地的宽是多少米？

Tomatoes and peppers are planted in Uncle Zhang’s vegetable field, and a row of peppers is interplanted between every two rows of tomatoes. Each row of tomatoes is 0.5 meters wide, and each row of peppers is 0.4 meters wide. If 8 rows of tomatoes are planted in the vegetable field, how many meters is the width of the vegetable field?

<gadget id="calculator">0.5 * 8</gadget>
<output>4</output>
<gadget id="calculator">0.4 * 7</gadget>
<output>2.8</output>
<gadget id="calculator">4 + 2.8</gadget>
<output>6.8</output>
<result>6.8</result>


张师傅7月份生产零件1250个，比六月份生产的2倍少550个，张师傅六月份生产零件多少个？(用方程解)

Master Zhang produced 1250 parts in July, which is 550 less than twice the production in June. How many parts did Master Zhang produce in June? (solution by equation)

<gadget id="calculator">550 + 1_250</gadget>
<output>1_800</output>
<gadget id="calculator">1_800 / 2</gadget>
<output>900</output>
<result>900</result>


课桌面的长是60厘米，宽是45厘米．课桌面的面积是多少平方分米？

The length of the desk is 60 cm and the width is 45 cm. What is the area of the desk in square meters?

<gadget id="calculator">60 * 45</gadget>
<output>2_700</output>
<gadget id="calculator">2_700 / 100</gadget>
<output>27</output>
<result>27</result>


一根钢筋不足10米长，小华用米尺从一头量到6米处作一记号A，又从另一头量到6米处作一记号B，A、B间的长度正好是这根钢筋的(1/4)．这根钢筋长多少米？

A steel bar is less than 10 meters long. Xiaohua uses a meter ruler to mark A from one end to 6 meters, and then marks B from the other end to 6 meters. The length between A and B is exactly the length of this steel bar. of (1/4). How many meters is this steel bar?

<gadget id="calculator">6 + 6</gadget>
<output>12</output>
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">(1/4) + 1</gadget>
<output>5/4 = around 1.25</output>
<gadget id="calculator">12 / (5/4)</gadget>
<output>48/5 = around 9.6</output>
<result>48/5 = around 9.6</result>


把一个圆柱的底面平均分成若干个扇形，然后切开拼成一个近似的等底等高的长方体，表面积比原来增加了400平方厘米．已知圆柱的高是20厘米，求圆柱的体积．

Divide the bottom surface of a cylinder into several sectors on average, and then cut them into pieces to form an approximate cuboid with the same base and height. The surface area is increased by 400 square centimeters compared to the original one. Given that the height of the cylinder is 20 cm, find the volume of the cylinder.

<gadget id="calculator">400 / 2 / 20</gadget>
<output>10</output>
<gadget id="calculator">10 ** 2</gadget>
<output>100</output>
<gadget id="calculator">3.14 * 100 * 20</gadget>
<output>6_280</output>
<result>6_280</result>


在25*□-□*12=39的□里填上相同的数，使等式成立，应选择多少

Fill in the same number in □ of 25*□-□*12=39 to make the equation true, how many should be selected

<gadget id="calculator">39 / 13</gadget>
<output>3</output>
<result>3</result>


What is the easy algorithm for 1379-608-379

<gadget id="calculator">1_379 - 608 - 379</gadget>
<output>392</output>
<result>392</result>


把(3/5)的分母加20，要使分数值不变，分子应加多少

Add 20 to the denominator of (3/5), how much should be added to the numerator to keep the fraction value unchanged

<gadget id="calculator">15 - 3</gadget>
<output>12</output>
<result>12</result>


平面上有5个点，无三点共线，以任意三点组成一个三角形，则三角形的个数应为多少．

There are 5 points on the plane, no three points are collinear, and any three points form a triangle, what is the number of triangles?

<gadget id="calculator">5 * 4</gadget>
<output>20</output>
<gadget id="calculator">20 / 2</gadget>
<output>10</output>
<result>10</result>


宝应某河有百多年的历史，首次全面见底清淤，整个工程全长2000米，水面平均宽度125米，清淤平均深度近1米．工程队7天挖了3.5万立方米的河底淤泥，照这样计算，全面完成清淤任务大约要多少天？

certain river in Baoying has a history of more than 100 years, and it was the first time to fully bottom out and dredge. The entire project has a total length of 2,000 meters, an average width of 125 meters on the water surface, and an average dredging depth of nearly 1 meter. The engineering team dug 35,000 cubic meters of river bottom silt in 7 days. According to this calculation, how many days will it take to fully complete the dredging task?

<gadget id="calculator">3.5 * 10_000</gadget>
<output>35_000</output>
<gadget id="calculator">35_000 / 7</gadget>
<output>5_000</output>
<gadget id="calculator">1 / 5_000</gadget>
<output>1/5_000 = around 0.0002</output>
<gadget id="calculator">2_000 * 125 * (1/5_000)</gadget>
<output>50</output>
<result>50</result>


要使45*2□的积是四位数，则□里的数字最小是多少

If the product of 45*2□ has four digits, what is the smallest number in □


把4千米的一段铁丝平均截成5段，每段长是这根铁丝的多少

Cut a section of iron wire 4 kilometers into 5 sections on average, what is the length of each section of this iron wire

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


甲打一篇文稿，打完一半后吃晚饭，晚饭后每分钟比晚饭前多打32个字，前后共打50分钟，前25分钟比后25分钟少打640个字．这篇文稿一共多少个字？

A typed a manuscript, and had dinner after half of the typing. After dinner, he typed 32 more characters per minute than before dinner. He typed a total of 50 minutes before and after, and typed 640 characters less in the first 25 minutes than in the last 25 minutes. How many words are there in this manuscript?

<gadget id="calculator">640 / 32</gadget>
<output>20</output>
<gadget id="calculator">50 - 20</gadget>
<output>30</output>
<gadget id="calculator">30 - 20</gadget>
<output>10</output>
<gadget id="calculator">30 / 10</gadget>
<output>3</output>
<gadget id="calculator">640 * 3 * 2</gadget>
<output>3_840</output>
<result>3_840</result>


蜗牛从15厘米深的杯底往上爬，每爬3厘米要用3分钟，然后停2分钟，请问蜗牛从杯底爬到杯口要用多少分钟？

The snail climbs up from the bottom of the cup with a depth of 15 cm. It takes 3 minutes for every 3 cm to climb, and then stops for 2 minutes. How many minutes does it take for the snail to climb from the bottom of the cup to the mouth of the cup?

<gadget id="calculator">15 / 3</gadget>
<output>5</output>
<gadget id="calculator">3 + 2</gadget>
<output>5</output>
<gadget id="calculator">5 * 5</gadget>
<output>25</output>
<gadget id="calculator">25 - 2</gadget>
<output>23</output>
<result>23</result>


一条公路，第一天修全长25%，第二天修全长20%，这时离中点还有24千米，第一天修多少千米？

A highway, 25% of the total length is repaired on the first day, and 20% of the total length is repaired on the second day. At this time, there are still 24 kilometers away from the midpoint. How many kilometers will be repaired on the first day?

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">(1/2) - (1/4) - (1/5)</gadget>
<output>1/20 = around 0.05</output>
<gadget id="calculator">24 / (1/20)</gadget>
<output>480</output>
<result>480</result>


有因数3，也是2和5的倍数的最小三位数是多少．

What is the smallest three-digit number that has a factor of 3 and is a multiple of 2 and 5?

<gadget id="calculator">2 * 3 * 5</gadget>
<output>30</output>
<gadget id="calculator">30 * 4</gadget>
<output>120</output>
<result>120</result>


甲乙两数的平均数为17.5，丙数为25，这三个数的平均数是多少．

The average of the two numbers A and B is 17.5, and the number C is 25. What is the average of these three numbers?

<gadget id="calculator">17.5 * 2</gadget>
<output>35</output>
<gadget id="calculator">35 + 25</gadget>
<output>60</output>
<gadget id="calculator">60 / 3</gadget>
<output>20</output>
<result>20</result>


一件皮衣降价(1/6)后售价是750元，这件皮衣原价是多少元？

The price of a leather jacket is reduced (1/6) and the price is 750 yuan. What is the original price of this leather jacket?

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">1 - (1/6)</gadget>
<output>5/6 = around 0.833333</output>
<gadget id="calculator">750 / (5/6)</gadget>
<output>900</output>
<result>900</result>


学校食堂的张师傅去超市买带鱼，原来买15千克的钱按优惠价可以多买5千克，带鱼打折16.8元/千克，优惠前每千克带鱼的售价是多少元？

Master Zhang in the school cafeteria went to the supermarket to buy hairtail. He bought 15 kilograms of hairtail at a discounted price and could buy 5 kilograms more. The discount for hairtail was 16.8 yuan per kilogram.

<gadget id="calculator">15 + 5</gadget>
<output>20</output>
<gadget id="calculator">20 / 15</gadget>
<output>4/3 = around 1.333333</output>
<gadget id="calculator">16.8 * (4/3)</gadget>
<output>22.4</output>
<result>22.4</result>


一项工程，如果甲队单独做5天可以完成工程的(1/3)；如果乙、丙两队合作12天可以完成工程．三队合做多少天可以完成工程的(3/4)．

A project, if team A works alone in 5 days can complete the project (1/3); if team B and C cooperate in 12 days to complete the project. How many days can three teams work together to complete the project (3/4).

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">(1/3) / 5</gadget>
<output>1/15 = around 0.066667</output>
<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>
<gadget id="calculator">(1/15) + (1/12)</gadget>
<output>3/20 = around 0.15</output>
<gadget id="calculator">(3/4) / (3/20)</gadget>
<output>5</output>
<result>5</result>


某工厂原来每件产品成本是60元，由于采用新工艺，现在每件产品成本是54元．现在每件产品的成本比原来降低了百分之几？

The original cost of each product in a factory is 60 yuan. Due to the adoption of new technology, the cost of each product is now 54 yuan. By what percentage is the cost per unit lower than before?

<gadget id="calculator">60 - 54</gadget>
<output>6</output>
<gadget id="calculator">6 / 60</gadget>
<output>1/10 = around 0.1</output>
<result>1/10 = around 0.1</result>


一条裤子售价120元，比原价贵了20元，售价提高了百分之几？

The price of a pair of pants is 120 yuan, which is 20 yuan more than the original price. How much is the price increase?

<gadget id="calculator">120 - 20</gadget>
<output>100</output>
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>
<result>1/5 = around 0.2</result>


有一个圆锥形钢材的底面积为4平方厘米，高7.5米，如果每立方厘米钢重6.8克，这个圆锥形钢材重多少千克？

There is a conical steel with a base area of 4 square centimeters and a height of 7.5 meters. If the steel weighs 6.8 grams per cubic centimeter, how many kilograms does this conical steel weigh?

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">6.8 / 1_000</gadget>
<output>0.0068</output>
<gadget id="calculator">(1/3) * 4 * 7.5 * 100 * 0.0068</gadget>
<output>6.8</output>
<result>6.8</result>


小明将127粒围棋子放入若干个袋子里，无论小朋友想要几粒棋子(不超过127粒)，小明只要取出几个袋子就可以满足要求，则小明至少要准备多少个袋子．

Xiao Ming puts 127 Go pieces into several bags. No matter how many chess pieces the child wants (no more than 127), Xiao Ming only needs to take out a few bags to meet the requirements, so Xiao Ming must prepare at least how many bags.


下列各题中，商比1小的是多少

Among the following questions, which one is the quotient smaller than 1?

<gadget id="calculator">0.203 / 1.5</gadget>
<output>0.135333</output>
<result>0.135333</result>


1.26里面有多少百分之一．

<gadget id="calculator">1.26 / 0.01</gadget>
<output>126</output>
<result>126</result>


狼追兔子，开始时狼与兔子相距40米，追了56米后，与小兔还相距12米，狼还要跑多少米才能追上兔子．

The wolf is chasing the rabbit. At the beginning, the distance between the wolf and the rabbit is 40 meters. After chasing for 56 meters, the distance between the wolf and the rabbit is still 12 meters. How many meters does the wolf have to run to catch up with the rabbit?

<gadget id="calculator">40 - 12</gadget>
<output>28</output>
<gadget id="calculator">28 / 56</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">12 / (1/2)</gadget>
<output>24</output>
<result>24</result>


<gadget id="calculator">3 * 3</gadget>
<output>9</output>
<gadget id="calculator">3 / 3</gadget>
<output>1</output>
<gadget id="calculator">9 - 1</gadget>
<output>8</output>
<gadget id="calculator">3 + 8</gadget>
<output>11</output>
<result>11</result>


在比例尺是(1/25000000)的地图上，量得北京到上海的距离长4.2厘米，如果一列直达火车以每小时175千米的速度从上海开出，经过几小时可以到达北京？

On a map with a scale of (1/25000000), the distance from Beijing to Shanghai is 4.2 cm long. If a direct train departs from Shanghai at a speed of 175 kilometers per hour, how many hours will it take to reach Beijing?

<gadget id="calculator">1 / 25_000_000</gadget>
<output>1/25_000_000 = around 0</output>
<gadget id="calculator">4.2 / (1/25_000_000) / 100_000 / 175</gadget>
<output>6</output>
<result>6</result>


老师把一个长8米，宽2米的长方形铁丝框架改围成一个正方形，求这个正方形的边长是多少米？

The teacher changed a rectangular wire frame with a length of 8 meters and a width of 2 meters into a square. What is the side length of this square in meters?

<gadget id="calculator">8 + 2</gadget>
<output>10</output>
<gadget id="calculator">2 / 4</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">10 * (1/2)</gadget>
<output>5</output>
<result>5</result>


方方读一本故事书，3天读了27页，照这样的速度，还需要5天才能正好把这本书读完．这本书一共有多少页？

Fang Fang read a story book and read 27 pages in 3 days. At this speed, it will take another 5 days to finish the book. How many pages does this book have?

<gadget id="calculator">27 / 3</gadget>
<output>9</output>
<gadget id="calculator">3 + 5</gadget>
<output>8</output>
<gadget id="calculator">9 * 8</gadget>
<output>72</output>
<result>72</result>


李叔叔写一部长篇小说，稿费是4600元，按有关规定稿费超过800元以上部分按照14%缴纳个人所得税．李叔叔税后稿费多少元？

Uncle Li writes a novel, and the manuscript fee is 4,600 yuan. According to relevant regulations, the portion of the manuscript fee exceeding 800 yuan is subject to 14% personal income tax. How much is Uncle Li's manuscript fee after tax?

<gadget id="calculator">4_600 - 800</gadget>
<output>3_800</output>
<gadget id="calculator">14 / 100</gadget>
<output>7/50 = around 0.14</output>
<gadget id="calculator">3_800 * (7/50)</gadget>
<output>532</output>
<gadget id="calculator">4_600 - 532</gadget>
<output>4_068</output>
<result>4_068</result>


一辆载重4吨的卡车，装运5000千克的货物，连车带货一共重多少吨？

A truck with a load of 4 tons carries 5,000 kilograms of goods. How many tons does it weigh with the truck and the goods?

<gadget id="calculator">5_000 / 1_000</gadget>
<output>5</output>
<gadget id="calculator">4 + 5</gadget>
<output>9</output>
<result>9</result>


用数字1至9组成一个九位数，使得它从左数前m位形成的数恰能被m整除(m=1、2、…、9)，这个九位数是多少．

Use the numbers 1 to 9 to form a nine-digit number so that the number formed by the first m digits from the left is exactly divisible by m (m=1, 2, ..., 9). What is the nine-digit number?


有一块面积(7/8)顷的地，用总面积(1/4)种蔬菜，(2/5)种粮食，其余的种果树．种果树的面积占总面积的几分之几？

There is a piece of land with an area of (7/8) hectares, use the total area (1/4) to grow vegetables, (2/5) to grow grain, and the rest to grow fruit trees. What percentage of the total area is the area planted with fruit trees?

<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 - (1/4) - (2/5)</gadget>
<output>7/20 = around 0.35</output>
<result>7/20 = around 0.35</result>


一桶油倒出(1/5)后又加入15千克，这时的油是原来的(9/10)，这桶油原有多少千克？

A barrel of oil is poured out (1/5) and then 15 kg is added. At this time, the oil is the original (9/10). How many kilograms is the original oil in the barrel?

<gadget id="calculator">9 / 10</gadget>
<output>9/10 = around 0.9</output>
<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">(9/10) - (4/5)</gadget>
<output>1/10 = around 0.1</output>
<gadget id="calculator">15 / (1/10)</gadget>
<output>150</output>
<result>150</result>


实验小学美术组人数是科技组的(8/9)，科技组人数是体育组的(5/6)，体育组有54人，美术组有多少人？

The number of people in the art group of Experimental Primary School is that of the science and technology group (8/9), the number of people in the science and technology group is that of the sports group (5/6), there are 54 people in the sports group, how many people are there in the art group?

<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>
<gadget id="calculator">8 / 9</gadget>
<output>8/9 = around 0.888889</output>
<gadget id="calculator">54 * (5/6) * (8/9)</gadget>
<output>40</output>
<result>40</result>


用两块大小相同的正方体木块拼成一个长方体，已知长方体的棱长总和是48厘米，那么每块正方体的表面积是多少平方厘米．

Two cubes of the same size are used to assemble a cuboid. It is known that the sum of the sides of the cuboid is 48 cm. What is the surface area of each cube in square centimeters?

<gadget id="calculator">48 / 16</gadget>
<output>3</output>
<gadget id="calculator">3 * 3 * 6</gadget>
<output>54</output>
<result>54</result>


一个圆的周长是62.8米，它的半径是多少米．

The circumference of a circle is 62.8 meters, what is its radius in meters.

<gadget id="calculator">62.8 / 2 / 3.14</gadget>
<output>10</output>
<result>10</result>


一个正方体铁块棱长4分米，将它煅造成一个底面长和宽都是8厘米的长方体铁条，这个长方体铁条有多少米长？

A square iron block has an edge length of 4 decimeters, and it is forged into a rectangular parallelepiped iron bar whose base is 8 cm long and wide. How many meters is this rectangular parallelepiped iron bar?

<gadget id="calculator">8 * 8</gadget>
<output>64</output>
<gadget id="calculator">10 / 64 / 100</gadget>
<output>1/640 = around 0.001563</output>
<gadget id="calculator">4 * 10 * 4 * 10 * 4 * (1/640)</gadget>
<output>10</output>
<result>10</result>


把一根长1.5米的圆柱形木料锯成三个小圆柱，表面积增加了8平方分米，原来这根木料的体积是多少立方分米．

A 1.5-meter-long cylindrical wood is sawn into three small cylinders, and the surface area increases by 8 square decimeters. What is the original volume of this wood in cubic decimeters?

<gadget id="calculator">8 / 4</gadget>
<output>2</output>
<gadget id="calculator">2 * 1.5 * 10</gadget>
<output>30</output>
<result>30</result>


甲、乙、丙三人向灾区捐款，甲捐款数是另外两人捐款总数的(1/3)，乙的捐款数是另外两人捐款总数的(3/5)，已知丙的捐款数是240元，求三人一共捐款多少元？

A, B, and C donate money to the disaster area. A’s donation is (1/3) of the other two’s total donations, and B’s donation is (3/5) of the other two’s total donations. The donation of C is known It is 240 yuan, how much is the total donation of the three people?

<gadget id="calculator">1 + 3</gadget>
<output>4</output>
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">3 + 5</gadget>
<output>8</output>
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>
<gadget id="calculator">1 - (1/4) - (3/8)</gadget>
<output>3/8 = around 0.375</output>
<gadget id="calculator">240 / (3/8)</gadget>
<output>640</output>
<result>640</result>


妈妈在商场搞促销活动时买了一件打八八折的衣服，用去352元，这件衣服原价多少元．

My mother bought a dress with a 22% discount in the shopping mall and spent 352 yuan. What is the original price of this dress?

<gadget id="calculator">88 / 100</gadget>
<output>22/25 = around 0.88</output>
<gadget id="calculator">352 / (22/25)</gadget>
<output>400</output>
<result>400</result>


跳绳比赛，刘红跳了160下，李明跳的是刘红的(4/5)，又是张华的(8/9)，张华跳了多少下？

In the rope skipping competition, Liu Hong jumped 160 times. Li Ming jumped Liu Hong's (4/5) and Zhang Hua's (8/9). How many times did Zhang Hua jump?

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">8 / 9</gadget>
<output>8/9 = around 0.888889</output>
<gadget id="calculator">(4/5) / (8/9)</gadget>
<output>9/10 = around 0.9</output>
<gadget id="calculator">160 * (9/10)</gadget>
<output>144</output>
<result>144</result>


多思希望小学语文组、数学组、英语组的老师参加趣味游戏比赛，比赛项目有吹气球、吃橘子、投篮球．每项比赛各取前三名，第一名得5分，第二名得3分，第三名得1分(单项赛中名次没有并列情况)．已知语文组进入前三名的老师人数最少，数学组进入前三名的老师人数是语文组的2倍，并且这两个组所得总分相等并列第一．英语组的老师得了多少分？

Dosi hopes that teachers from the Chinese, Mathematics, and English groups of primary schools will participate in fun games. The competitions include blowing balloons, eating oranges, and throwing basketballs. The top three in each competition will get 5 points for the first place, 3 points for the second place, and 1 point for the third place (there is no tie in the rankings in the single event). It is known that the number of teachers in the top three in the language group is the least, and the number of teachers in the top three in the mathematics group is twice that of the language group, and the total scores of these two groups are equal and tied for the first place. How many points did the teacher in the English group get?

<gadget id="calculator">1 + 3 + 5</gadget>
<output>9</output>
<gadget id="calculator">3 * 9</gadget>
<output>27</output>
<gadget id="calculator">5 + 5 + 5 + 5</gadget>
<output>20</output>
<gadget id="calculator">27 - 20</gadget>
<output>7</output>
<result>7</result>


一种什锦糖是按2份奶糖、5份水果糖和3份软糖混合成的．要配制这样的什锦糖40kg，需要水果糖多少千克？

A kind of assorted candy is made by mixing 2 parts toffee, 5 parts fruit sugar and 3 parts fudge. How many kilograms of fruit sugar is needed to prepare 40kg of such assorted candies?

<gadget id="calculator">2 + 5 + 3</gadget>
<output>10</output>
<gadget id="calculator">5 / 10</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">40 * (1/2)</gadget>
<output>20</output>
<result>20</result>


四年级一班有34人，共借书544本，四年级一班平均每人借书多少本．

There are 34 students in the first class of the fourth grade, and a total of 544 books are borrowed. How many books are borrowed by each person in the first class of the fourth grade.

<gadget id="calculator">544 / 34</gadget>
<output>16</output>
<result>16</result>


用1-9这9个数字组成三个三位数(每个数字都要用)，每个数都是8的倍数．这三个三位数的和最小是多少．

Use the 9 numbers from 1-9 to form three three-digit numbers (each number must be used), and each number is a multiple of 8. What is the smallest sum of these three three-digit numbers?

<gadget id="calculator">384 + 192 + 576</gadget>
<output>1_152</output>
<result>1_152</result>


同学们去植树．三年级每班种45棵．四年级3个班，每个班种的棵数是三年级的2倍．四年级共种了多少棵？

The students went to plant trees. 45 trees are planted in each class of the third grade. There are 3 classes in the fourth grade, and the number of trees planted in each class is twice that of the third grade. How many trees did the fourth grade plant?

<gadget id="calculator">45 * 2 * 3</gadget>
<output>270</output>
<result>270</result>


王老师买回45千克苹果和20千克梨共付人民币54.2元，后来退还10千克梨换回15千克苹果又付了7.40元，问每千克苹果多少元？

Mr. Wang bought back 45kg of apples and 20kg of pears and paid a total of 54.2 yuan. Later, he returned 10kg of pears in exchange for 15kg of apples and paid another 7.40 yuan. How much is per kilogram of apples?

<gadget id="calculator">7.4 * 2</gadget>
<output>14.8</output>
<gadget id="calculator">54.2 + 14.8</gadget>
<output>69</output>
<gadget id="calculator">45 + 15 + 15</gadget>
<output>75</output>
<gadget id="calculator">69 / 75</gadget>
<output>23/25 = around 0.92</output>
<result>23/25 = around 0.92</result>


一根绳子长16米，对折以后再对折，每段长多少米．

A rope is 16 meters long, folded in half and then folded in half again, how many meters is each length?

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


一个长9厘米、宽6厘米、高3厘米的长方体，切割成3个体积相等的长方体，表面积最大可增加多少平方厘米．

If a cuboid with a length of 9 cm, a width of 6 cm, and a height of 3 cm is cut into 3 cuboids of equal volume, what is the maximum increase in the surface area in square centimeters?

<gadget id="calculator">9 * 6 * 4</gadget>
<output>216</output>
<result>216</result>


用一根62.8厘米长的铁丝围成一个圆，这个圆的半径是多少厘米．

A circle is formed by a wire 62.8 cm long, what is the radius of the circle in cm?

<gadget id="calculator">62.8 / 3.14 / 2</gadget>
<output>10</output>
<result>10</result>


茜茜和她的俩个好朋友5天一共写了360个字，平均每人每天写多少个？

Sissy and her two good friends wrote a total of 360 characters in 5 days. How many characters do they write each day on average?

<gadget id="calculator">360 / 5 / 3</gadget>
<output>24</output>
<result>24</result>


两辆汽车同时从甲乙两地相对开出，一辆小汽车从甲地开往乙地要4小时，另一辆卡车从乙地开往甲地需要6小时，当两车相遇卡车离甲地还有36千米，甲乙两地相距多少千米？

Two cars drive from A to B at the same time. It takes 4 hours for a car to drive from A to B, and 6 hours for a truck to drive from B to A. When the two cars meet, the truck leaves A. There are still 36 kilometers. How many kilometers are there between A and B?

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">(1/4) + (1/6)</gadget>
<output>5/12 = around 0.416667</output>
<gadget id="calculator">1 / (5/12)</gadget>
<output>12/5 = around 2.4</output>
<gadget id="calculator">36 / (12/5)</gadget>
<output>15</output>
<gadget id="calculator">6 / 4</gadget>
<output>3/2 = around 1.5</output>
<gadget id="calculator">1 / (3/2)</gadget>
<output>2/3 = around 0.666667</output>
<gadget id="calculator">36 / (12/5) / (2/3)</gadget>
<output>45/2 = around 22.5</output>
<gadget id="calculator">15 + (45/2)</gadget>
<output>75/2 = around 37.5</output>
<gadget id="calculator">(75/2) * (12/5)</gadget>
<output>90</output>
<result>90</result>


两个数相除的商是48，如果被除数扩大10倍，除数不变，所得的商是多少．

The quotient of dividing two numbers is 48. If the dividend is increased by 10 times and the divisor remains the same, what is the quotient obtained?

<gadget id="calculator">48 * 10</gadget>
<output>480</output>
<result>480</result>


一个圆锥体的体积是12.56立方分米，底面积是3.14平方分米，它的高有多少分米？

cone has a volume of 12.56 cubic decimeters and a base area of 3.14 square decimeters. How many decimeters is its height?

<gadget id="calculator">3 / 3.14</gadget>
<output>0.955414</output>
<gadget id="calculator">12.56 * 0.955414</gadget>
<output>12</output>
<result>12</result>


有浓度为30%的盐水若干，添加入一定数量的浓度为50%的盐水后，浓度增加为35%；如果再添加入相同质量的浓度为50%的盐水后，则浓度增加为多少？

There are some brines with a concentration of 30%. After adding a certain amount of brine with a concentration of 50%, the concentration will increase to 35%. If the same mass of brine with a concentration of 50% is added, how much will the concentration increase?

<gadget id="calculator">35 / 100</gadget>
<output>7/20 = around 0.35</output>
<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>
<gadget id="calculator">(7/20) - (3/10)</gadget>
<output>1/20 = around 0.05</output>
<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">(1/2) - (7/20)</gadget>
<output>3/20 = around 0.15</output>
<gadget id="calculator">(1/20) / (3/20)</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">1 + (1/3)</gadget>
<output>4/3 = around 1.333333</output>
<gadget id="calculator">(4/3) * (7/20)</gadget>
<output>7/15 = around 0.466667</output>
<gadget id="calculator">(1/2) * (1/3)</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">(7/15) + (1/6)</gadget>
<output>19/30 = around 0.633333</output>
<gadget id="calculator">1 + (1/3) + (1/3)</gadget>
<output>5/3 = around 1.666667</output>
<gadget id="calculator">(19/30) / (5/3)</gadget>
<output>19/50 = around 0.38</output>
<gadget id="calculator">100 / 100</gadget>
<output>1</output>
<gadget id="calculator">(19/50) * 1</gadget>
<output>19/50 = around 0.38</output>
<result>19/50 = around 0.38</result>


55和66最大公因数是多少．

What is the greatest common factor of 55 and 66?


一个数是6，另一个数是它的3倍，另一个数是多少．

One number is 6, the other number is 3 times it, what is the other number.

<gadget id="calculator">6 * 3</gadget>
<output>18</output>
<result>18</result>


参加美术兴趣小组的有24人，参加数学兴趣小组的有18人，两个组都参加的8人，这个班有多少人？

There are 24 people in the art interest group, 18 people in the mathematics interest group, and 8 people in both groups. How many people are there in this class?

<gadget id="calculator">18 - 8</gadget>
<output>10</output>
<gadget id="calculator">24 + 10</gadget>
<output>34</output>
<result>34</result>


甲、乙两人在相距16千米的A、B两地同时出发，同向而行．甲步行每小时行4千米，乙骑车在后面，每小时速度是甲的3倍．几小时后乙能追上甲？

A and B start at the same time at two places A and B, which are 16 kilometers apart, and walk in the same direction. A walks 4 kilometers per hour, B rides behind, and the speed per hour is 3 times that of A. How many hours later can B catch up with A?

<gadget id="calculator">4 * 3</gadget>
<output>12</output>
<gadget id="calculator">12 - 4</gadget>
<output>8</output>
<gadget id="calculator">16 / 8</gadget>
<output>2</output>
<result>2</result>


砂子堆在地面上占地正好是圆形，量出它一周的长度是15.7米，那么直径是多少米？

The area occupied by the sand pile on the ground is exactly a circle, and the length of its circumference is measured to be 15.7 meters, so how many meters is the diameter?

<gadget id="calculator">15.7 / 3.14</gadget>
<output>5</output>
<result>5</result>


一条84米长的路上，原来每隔4米种一棵树．现在要改成每隔6米种一棵树，从头到尾有多少棵树保留在原来的位置上？(两端均种树)

On an 84-meter-long road, a tree was originally planted every 4 meters. Now it is necessary to plant a tree every 6 meters, how many trees are kept in the original position from the beginning to the end? (plant trees at both ends)

<gadget id="calculator">84 / 12</gadget>
<output>7</output>
<gadget id="calculator">7 + 1</gadget>
<output>8</output>
<result>8</result>


甲、乙两个工程队合修一条公路，计划每天修50米，30天修完．实际每天多修10米，实际多少天可以修完？(用方程解)

Two engineering teams, A and B, are working together to build a road. They plan to build 50 meters a day and complete the repair in 30 days. Actually repair 10 meters more every day, how many days can the repair be completed? (solution by equation)

<gadget id="calculator">50 * 30</gadget>
<output>1_500</output>
<gadget id="calculator">50 + 10</gadget>
<output>60</output>
<gadget id="calculator">1_500 / 60</gadget>
<output>25</output>
<result>25</result>


化肥厂1、2月份共生产化肥520吨，3、4月份共生产664吨，平均每月生产化肥多少吨？

The fertilizer factory produced 520 tons of fertilizers in January and February, and 664 tons in March and April. How many tons of fertilizers are produced per month on average?

<gadget id="calculator">520 + 664</gadget>
<output>1_184</output>
<gadget id="calculator">1_184 / 4</gadget>
<output>296</output>
<result>296</result>


一列火车7小时行了525千米，求每小时行多少千米，列式是多少．

A train travels 525 kilometers in 7 hours, how many kilometers does it travel per hour, and what is the formula?

<gadget id="calculator">525 / 7</gadget>
<output>75</output>
<result>75</result>


在六•一活动广播操比赛中，有20个班参加比赛，每个班排成5组，每组有13人．参加广播操比赛的有多少人？

In the broadcasting exercise competition of June 1st, there were 20 classes participating in the competition, and each class was arranged into 5 groups with 13 people in each group. How many people participated in the broadcasting exercise competition?

<gadget id="calculator">5 * 13 * 20</gadget>
<output>1_300</output>
<result>1_300</result>


足球门票原价50元一张，为了吸引观众，同时为了倡导全民健身运动，主办单位决定降价出售．结果降低后观众增加了一半，收入也增加了五分之一．请你算一算，每张门票降价了多少元？

The original price of football tickets was 50 yuan a piece. In order to attract the audience and promote fitness for all, the sponsor decided to sell the tickets at a reduced price. After the results were reduced, the audience increased by half, and the income increased by one-fifth. Please do the math, how much has the price of each ticket been reduced?

<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">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">(6/5) / (3/2)</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">(4/5) * 50</gadget>
<output>40</output>
<gadget id="calculator">50 - 40</gadget>
<output>10</output>
<result>10</result>


如果2：7的前项加上6，要使比值不变，后项应加上多少．

If 6 is added to the former term of 2:7, how much should be added to the latter term to keep the ratio unchanged.

<gadget id="calculator">28 - 7</gadget>
<output>21</output>
<result>21</result>


甲、乙两地相距120千米，一辆汽车(2/5)小时行驶了32千米，照这样计算，从甲地到乙地需要多少小时？

The distance between A and B is 120 kilometers, and a car (2/5) travels 32 kilometers in an hour. According to this calculation, how many hours does it take to get from A to B?

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">32 / (2/5)</gadget>
<output>80</output>
<gadget id="calculator">120 / 80</gadget>
<output>3/2 = around 1.5</output>
<result>3/2 = around 1.5</result>


一根铁丝长20米，用去(3/4)后，还剩下多少米．

A piece of iron wire is 20 meters long, how many meters are left after (3/4) is used up?

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">1 - (3/4)</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">20 * (1/4)</gadget>
<output>5</output>
<result>5</result>


有一个养鱼池长15米，宽12米，深4米，要在养鱼池各个面上抹一层水泥防止渗水．如果每平方米用水泥5千克，一共需要水泥多少千克？

There is a fish pond with a length of 15 meters, a width of 12 meters and a depth of 4 meters. A layer of cement should be applied on all sides of the fish pond to prevent water seepage. If 5 kilograms of cement is used per square meter, how many kilograms of cement are needed in total?

<gadget id="calculator">15 * 4</gadget>
<output>60</output>
<gadget id="calculator">12 * 4</gadget>
<output>48</output>
<gadget id="calculator">60 + 48</gadget>
<output>108</output>
<gadget id="calculator">108 * 2</gadget>
<output>216</output>
<gadget id="calculator">15 * 12</gadget>
<output>180</output>
<gadget id="calculator">216 + 180</gadget>
<output>396</output>
<gadget id="calculator">5 * 396</gadget>
<output>1_980</output>
<result>1_980</result>


商场购进400条毛巾，按每条6元出售，卖出了(4/5)后，发现非常畅销，于是商场决定余下的毛巾提价销售，每条售价比原来贵(1/3)，余下的毛巾能卖多少钱？

The shopping mall bought 400 towels and sold them at 6 yuan each. After selling (4/5), they found that they were very popular, so the shopping mall decided to increase the price of the remaining towels, and the price of each towel was higher than the original (1/3) , how much can you sell the remaining towels for?

<gadget id="calculator">4 / 5</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 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">1 + (1/3)</gadget>
<output>4/3 = around 1.333333</output>
<gadget id="calculator">6 * (4/3)</gadget>
<output>8</output>
<gadget id="calculator">400 * (1/5) * 8</gadget>
<output>640</output>
<result>640</result>


一筐苹果连筐一共重45千克，筐重2千克，苹果重多少千克？

A basket of apples together with the basket weighs 45 kg, and the basket weighs 2 kg. How much does the apple weigh?

<gadget id="calculator">45 - 2</gadget>
<output>43</output>
<result>43</result>


一辆洒水车每分钟行驶80米，洒水的宽度是10米，洒水车行驶6分钟，洒水的地面是多少平方米？

A sprinkler travels 80 meters per minute, the width of the sprinkler is 10 meters, and the sprinkler travels for 6 minutes. How many square meters is the sprinkled ground?

<gadget id="calculator">80 * 6 * 10</gadget>
<output>4_800</output>
<result>4_800</result>


赵萍在做计算题时，由于粗心大意，把被减数个位上的3错写成8，把十位上的7错写成1，这样得到的差是189，正确的差是多少．

When Zhao Ping was doing the calculation problem, due to her carelessness, she wrote 8 by mistake in the ones place of the subtrahend, and wrote 1 in the 7 in the tens place. The difference obtained in this way is 189. What is the correct difference?

<gadget id="calculator">73 - 18</gadget>
<output>55</output>
<gadget id="calculator">189 + 55</gadget>
<output>244</output>
<result>244</result>


一根长3.8m的木头先砍掉0.8m，再砍掉1m，现在还剩下多少米？

A piece of wood with a length of 3.8m is cut off by 0.8m first, and then by 1m. How many meters are left now?

<gadget id="calculator">3.8 - 0.8 - 1</gadget>
<output>2</output>
<result>2</result>


扬州与上海之间的实际距离约是250千米，在比例尺是1：5000000的地图上，两城市之间的距离约是多少厘米？

The actual distance between Yangzhou and Shanghai is about 250 kilometers. On a map with a scale of 1:5,000,000, how many centimeters is the distance between the two cities?

<gadget id="calculator">1 / 5_000_000</gadget>
<output>1/5_000_000 = around 0</output>
<gadget id="calculator">250 * 100_000 * (1/5_000_000)</gadget>
<output>5</output>
<result>5</result>


把一个直角三角形放大3倍，面积会扩大多少倍．

If a right triangle is enlarged by 3 times, how many times will the area be enlarged?

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>
<result>9</result>


小刚看一本科技书，第一天看了全书的20%，第二天看了全书的(1/6)，还剩下76页没有看．这本书一共有多少页？

Xiaogang reads a science and technology book, reads 20% of the whole book on the first day, and reads (1/6) of the whole book on the second day, leaving 76 pages unread. How many pages does this book have?

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">(1/5) + (1/6)</gadget>
<output>11/30 = around 0.366667</output>
<gadget id="calculator">1 - (11/30)</gadget>
<output>19/30 = around 0.633333</output>
<gadget id="calculator">76 / (19/30)</gadget>
<output>120</output>
<result>120</result>


一幅长方形的画长120厘米，宽是长的(2/3)．如果给这幅画配上画框，那么这个画框内侧的周长是多少？

A rectangular picture is 120 cm long and its width is long (2/3). If the picture is framed, what is the perimeter of the inside of the frame?

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>
<gadget id="calculator">120 * (2/3)</gadget>
<output>80</output>
<gadget id="calculator">120 + 80</gadget>
<output>200</output>
<gadget id="calculator">200 * 2</gadget>
<output>400</output>
<result>400</result>


<gadget id="calculator">96 * 29</gadget>
<output>2_784</output>
<gadget id="calculator">2_784 + 96</gadget>
<output>2_880</output>
<gadget id="calculator">3_600 - 2_880</gadget>
<output>720</output>
<result>720</result>


(43/61)的分子、分母同时加减去多少后，可约分面(1/3)．

After adding and subtracting the numerator and denominator of (43/61) at the same time, it can be divided into planes (1/3).

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">(1/3) * 61</gadget>
<output>61/3 = around 20.333333</output>
<gadget id="calculator">43 - (61/3)</gadget>
<output>68/3 = around 22.666667</output>
<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>
<gadget id="calculator">(68/3) / (2/3)</gadget>
<output>34</output>
<result>34</result>


某人从甲地前往乙地办事，去时有(2/3)的路程乘大客车，(1/3)的路程乘小汽车；返回时乘小汽车与大客车行的时间相同，返回比去时少用了5小时，已知大客车每小时行24千米，小汽车每小时行72千米，甲地到乙地的路程是多少千米？

person travels from A to B to do business. When he goes there, he takes a bus for (2/3) the distance, and takes a car for (1/3) the distance. It took 5 hours less to go there. It is known that the bus travels 24 kilometers per hour and the car travels 72 kilometers per hour. How many kilometers is the distance from A to B?

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>
<gadget id="calculator">1 + 3</gadget>
<output>4</output>
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">(2/3) - (1/4)</gadget>
<output>5/12 = around 0.416667</output>
<gadget id="calculator">3 - 1</gadget>
<output>2</output>
<gadget id="calculator">5 / (5/12) / 2</gadget>
<output>6</output>
<gadget id="calculator">6 * 72</gadget>
<output>432</output>
<result>432</result>


一根竹竿长5米，把它垂直放入河中，沿水面做个记号，接着把竹竿倒过来再垂直放入河中，也沿水面做个记号，已知两个记号相距全长的(1/5)，河深多少米？

A bamboo pole is 5 meters long, put it vertically into the river, make a mark along the water surface, then turn the bamboo pole upside down and put it vertically into the river, also make a mark along the water surface, the distance between the two marks is known to be (1/ 5), how deep is the river in meters?

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">5 * (1/5)</gadget>
<output>1</output>
<gadget id="calculator">5 - 1</gadget>
<output>4</output>
<gadget id="calculator">4 / 2</gadget>
<output>2</output>
<result>2</result>


某校男生人数比女生多20%，那么女生比男生少多少

If there are 20% more boys than girls in a school, how much less girls than boys?

<gadget id="calculator">20 / 100</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">(1/5) / (6/5)</gadget>
<output>1/6 = around 0.166667</output>
<result>1/6 = around 0.166667</result>


一个长方形的长和宽都是质数个单位，周长是36个单位，面积最多是多少个单位？

The length and width of a rectangle are both prime units, and the perimeter is 36 units. What is the maximum number of units in the area?

<gadget id="calculator">7 * 11</gadget>
<output>77</output>
<result>77</result>


一台电视机原价858元，现价578元，现价比原价便宜多少元．

The original price of a TV is 858 yuan, and the current price is 578 yuan. How much is the current price cheaper than the original price?

<gadget id="calculator">858 - 578</gadget>
<output>280</output>
<result>280</result>


学校举行升旗仪式，要求学生围绕升旗台排列成一个空心的正方形队列，现知道最外层有52个学生，最内层有28个学生，请你计算一下，这个空心的正方形队列共需要多少个学生．

The school held a flag-raising ceremony and required students to form a hollow square queue around the flag-raising platform. Now we know that there are 52 students in the outermost layer and 28 students in the innermost layer. Please calculate how many students are needed for this hollow square queue student.

<gadget id="calculator">52 - 28</gadget>
<output>24</output>
<gadget id="calculator">24 / 8</gadget>
<output>3</output>
<gadget id="calculator">3 + 1</gadget>
<output>4</output>
<gadget id="calculator">28 * 4</gadget>
<output>112</output>
<gadget id="calculator">8 * 2</gadget>
<output>16</output>
<gadget id="calculator">8 * 3</gadget>
<output>24</output>
<gadget id="calculator">112 + 8 + 16 + 24</gadget>
<output>160</output>
<result>160</result>


小明在计算34.72除以一个数时，由于将含有一位小数的除数看成了整数，结果得1.24．这道题的除数是多少．

When Xiao Ming divided 34.72 by a number, he regarded the divisor with one decimal as an integer, and the result was 1.24. What is the divisor of this question.

<gadget id="calculator">34.72 / 1.24 / 10</gadget>
<output>2.8</output>
<result>2.8</result>


一块梯形的地，上底长240米，下底长440米，高75米，共收油菜籽10200千克．平均每公顷产油菜籽多少千克？

A trapezoidal field, the upper base is 240 meters long, the lower base is 440 meters long, and the height is 75 meters. A total of 10,200 kg of rapeseed is harvested. How many kilograms of rapeseed are produced per hectare?

<gadget id="calculator">10_200 / 2.55</gadget>
<output>4_000</output>
<result>4_000</result>


张立买来铅笔和水笔各4支，共付20元，找回7.6元，每支铅笔1.6元，每支水笔多少元？

Zhang Li bought 4 pencils and 4 fountain pens, paid 20 yuan in total, got 7.6 yuan back, 1.6 yuan for each pencil, how much is each fountain pen?

<gadget id="calculator">1.6 * 4</gadget>
<output>6.4</output>
<gadget id="calculator">20 - 7.6 - 6.4</gadget>
<output>6</output>
<gadget id="calculator">6 / 4</gadget>
<output>3/2 = around 1.5</output>
<result>3/2 = around 1.5</result>


同学们参加植树活动，其中男生92人，男生的人数比女生的3倍多14人，女生有几人？

The students participated in the tree planting activity. Among them, there were 92 boys, and the number of boys was 14 more than three times that of girls. How many girls were there?

<gadget id="calculator">92 - 14</gadget>
<output>78</output>
<gadget id="calculator">78 / 3</gadget>
<output>26</output>
<result>26</result>


长方形的长是10米、宽是2米，它的面积是多少平方米

The length of a rectangle is 10 meters and the width is 2 meters. What is its area in square meters?

<gadget id="calculator">10 * 2</gadget>
<output>20</output>
<result>20</result>


河西村今年小麦大丰收，年产量达到54吨，比去年增产两成．河西村去年小麦的产量是多少吨？

Hexi Village has a bumper harvest of wheat this year, with an annual output of 54 tons, an increase of 20% over last year. How many tons of wheat did Hexi Village produce last year?

<gadget id="calculator">20 / 100</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">54 / (6/5)</gadget>
<output>45</output>
<result>45</result>


已知两个质数的积是21，这两个质数的和是多少

The product of two prime numbers is known to be 21, what is the sum of these two prime numbers

<gadget id="calculator">3 + 7</gadget>
<output>10</output>
<result>10</result>


一个长方形按1：3缩小后的面积是原来的多少．

What is the original area of a rectangle reduced by 1:3?

<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>
<result>1/9 = around 0.111111</result>


在比例尺是1：5000000的地图上，量得甲乙两地铁路长是3厘米，甲乙两地的实际长度是多少千米．

On a map with a scale of 1:5,000,000, the length of the railway between A and B is measured to be 3 cm. What is the actual length of A and B in kilometers?

<gadget id="calculator">1 / 5_000_000</gadget>
<output>1/5_000_000 = around 0</output>
<gadget id="calculator">3 / (1/5_000_000) / 100_000</gadget>
<output>150</output>
<result>150</result>


一项工程，甲先独做2天，后与乙合作7天，才完成全工程的一半．已知甲、乙的工作效率的比是3：2．如果这件工作由乙独做，需多少天能完成？

For a project, A works alone for 2 days first, and then cooperates with B for 7 days to complete half of the whole project. It is known that the working efficiency ratio of A and B is 3:2. If this work is done by B alone, how many days will it take to complete it?

<gadget id="calculator">2 + 7</gadget>
<output>9</output>
<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>
<gadget id="calculator">9 * (3/2)</gadget>
<output>27/2 = around 13.5</output>
<gadget id="calculator">(27/2) + 7</gadget>
<output>41/2 = around 20.5</output>
<gadget id="calculator">(41/2) * 2</gadget>
<output>41</output>
<result>41</result>


今天我班到校学生人数为45人，缺勤率为10%，今天有多少人没来？

The number of students in my class today is 45, and the absence rate is 10%. How many people did not come today?

<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>
<gadget id="calculator">1 - (1/10)</gadget>
<output>9/10 = around 0.9</output>
<gadget id="calculator">45 / (9/10)</gadget>
<output>50</output>
<gadget id="calculator">50 - 45</gadget>
<output>5</output>
<result>5</result>


把5.08的小数点先向右移动两位，再向左移动三位，得到的是原数的多少

Move the decimal point of 5.08 two places to the right and then three places to the left to get the original number

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>
<result>1/10 = around 0.1</result>


一个圆柱和一个圆锥体等底等高，它们的体积和是72立方分米，这个圆锥比圆柱的体积少多少．

A cylinder and a cone have the same base and height, and the sum of their volumes is 72 cubic decimeters. How much less is the volume of the cone than the cylinder.

<gadget id="calculator">3 + 1</gadget>
<output>4</output>
<gadget id="calculator">72 / 4</gadget>
<output>18</output>
<gadget id="calculator">3 - 1</gadget>
<output>2</output>
<gadget id="calculator">18 * 2</gadget>
<output>36</output>
<result>36</result>


小英的跑步速度为13.5米/秒，小明比小英慢1.9米/秒，小惠比小明慢1.5米/秒，那么，小惠的跑步速度是多少米/秒

Xiaoying's running speed is 13.5 m/s, Xiao Ming is 1.9 m/s slower than Xiao Ying, and Xiao Hui is 1.5 m/s slower than Xiao Ming, then, what is Xiao Hui's running speed in m/s

<gadget id="calculator">13.5 - 1.9 - 1.5</gadget>
<output>10.1</output>
<result>10.1</result>


一个长方形周长50米，长与宽的比是3：2，这个长方形的面积是多少？

rectangle has a perimeter of 50 meters and the ratio of length to width is 3:2. What is the area of the rectangle?

<gadget id="calculator">50 / 2</gadget>
<output>25</output>
<gadget id="calculator">3 + 2</gadget>
<output>5</output>
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>
<gadget id="calculator">25 * (3/5)</gadget>
<output>15</output>
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">25 * (2/5)</gadget>
<output>10</output>
<gadget id="calculator">15 * 10</gadget>
<output>150</output>
<result>150</result>


<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">(1/2) + 24</gadget>
<output>49/2 = around 24.5</output>
<gadget id="calculator">48 / 2</gadget>
<output>24</output>
<gadget id="calculator">(49/2) * 24</gadget>
<output>588</output>
<result>588</result>


红花有54朵，黄花有9朵，红花的朵数是黄花的多少倍．

There are 54 red flowers and 9 yellow flowers, how many times the number of red flowers is that of yellow flowers.

<gadget id="calculator">54 / 9</gadget>
<output>6</output>
<result>6</result>


绳两根，第一根长(2/8)米，第二根长(5/8)米，两根绳共长多少米？

There are two ropes, the first one is (2/8) meters long and the second one is (5/8) meters long, how many meters are the total length of the two ropes?

<gadget id="calculator">2 / 8</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>
<gadget id="calculator">(1/4) + (5/8)</gadget>
<output>7/8 = around 0.875</output>
<result>7/8 = around 0.875</result>


一张正方形纸，用面积1平方厘米的正方形去摆，每排摆5个，正好摆了5排，这张纸的面积是多少平方厘米．

A piece of square paper is placed in squares with an area of 1 square centimeter. There are 5 squares in each row, exactly 5 rows. What is the area of this paper in square centimeters?

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


用一根长36厘米的铁丝正好做成一个正方体，这个正方体的体积是多少立方厘米．

What is the volume of a cube made of a piece of iron wire 36 cm long?

<gadget id="calculator">36 / 12</gadget>
<output>3</output>
<gadget id="calculator">3 * 3 * 3</gadget>
<output>27</output>
<result>27</result>


What is the quotient of (1/3) and (1/3) divided by the product of (1/3) and (1/3)?

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">(1/3) * (1/3)</gadget>
<output>1/9 = around 0.111111</output>
<gadget id="calculator">(1/3) + (1/3)</gadget>
<output>2/3 = around 0.666667</output>
<gadget id="calculator">(1/9) / (2/3)</gadget>
<output>1/6 = around 0.166667</output>
<result>1/6 = around 0.166667</result>