饲养场有白兔60只，灰兔比白兔多20%，有灰兔多少只．

There are 60 white rabbits in the farm, and there are 20% more gray rabbits than white rabbits. How many gray rabbits are there?

<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">60 * (6/5)</gadget>
<output>72</output>
<result>72</result>


某机械厂生产一种产品的成本，去年是168元，今年比去年下降了20%，今年这种产品的成本是多少元？

The cost of a product produced by a certain machinery factory was 168 yuan last year, and this year it has dropped by 20% compared with last year. How much is the cost of this product this year?

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">168 * (4/5)</gadget>
<output>672/5 = around 134.4</output>
<result>672/5 = around 134.4</result>


在一条全长2千米的道路两旁安装路灯，每隔50米按一座，一共要按多少座？(两端都要按)

Install street lights on both sides of a road with a total length of 2 kilometers, and press one every 50 meters. How many lights should be pressed in total? (press both ends)

<gadget id="calculator">1_000 / 50</gadget>
<output>20</output>
<gadget id="calculator">2 * 20</gadget>
<output>40</output>
<gadget id="calculator">40 + 1</gadget>
<output>41</output>
<gadget id="calculator">41 * 2</gadget>
<output>82</output>
<result>82</result>


从甲地到乙地，其中(3/10)是上坡路，(7/10)是下坡路．一人在甲乙间往返一趟，共走上坡路5千米，那么从乙地返回甲地时行上坡路多少千米？

From A to B, (3/10) is uphill and (7/10) is downhill. A person travels back and forth between A and B, and walks a total of 5 kilometers uphill, so how many kilometers uphill does he travel from B to A?

<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>
<gadget id="calculator">7 / 10</gadget>
<output>7/10 = around 0.7</output>
<gadget id="calculator">(3/10) + (7/10)</gadget>
<output>1</output>
<gadget id="calculator">5 / 1</gadget>
<output>5</output>
<gadget id="calculator">5 * (7/10)</gadget>
<output>7/2 = around 3.5</output>
<result>7/2 = around 3.5</result>


李老师买了3千克白菜和6千克青菜，一共用了7.62元，已知每千克青菜0.36元，每千克白菜多少元？

Teacher Li bought 3 kilograms of cabbage and 6 kilograms of green vegetables, and the total cost was 7.62 yuan. It is known that each kilogram of green vegetables is 0.36 yuan. How much is each kilogram of cabbage?

<gadget id="calculator">0.36 * 6</gadget>
<output>2.16</output>
<gadget id="calculator">7.62 - 2.16</gadget>
<output>5.46</output>
<gadget id="calculator">5.46 / 3</gadget>
<output>1.82</output>
<result>1.82</result>


一张边长3厘米的正方形纸片，把它平均分成边长是1厘米的小正方形，可以分成多少个．

If a square piece of paper with a side length of 3 cm is divided into small squares with a side length of 1 cm, how many pieces can it be divided into?

<gadget id="calculator">1 * 1</gadget>
<output>1</output>
<gadget id="calculator">3 / 1</gadget>
<output>3</output>
<gadget id="calculator">3 * 3</gadget>
<output>9</output>
<result>9</result>


李叔叔带900元买鲜花，买了16盆水仙花，还剩100元，每盆花多少元？

Uncle Li brought 900 yuan to buy fresh flowers. He bought 16 pots of daffodils and left 100 yuan. How much is each pot of flowers?

<gadget id="calculator">900 - 100</gadget>
<output>800</output>
<gadget id="calculator">800 / 16</gadget>
<output>50</output>
<result>50</result>


学校举行春季运动会，六1班人数的(3/8)参加田赛，(3/7)参加径赛，六1班人数是多少人．

The school held a spring sports meeting. (3/8) of Class 1 participated in the field race, and (3/7) participated in the track competition. What is the number of Class 1 students?

<gadget id="calculator">7 * 8</gadget>
<output>56</output>
<result>56</result>


用一根长32米的铁丝围成一个长方形，长方形的长与宽的比是5：3，长方形的面积是多少平方米？

32-meter-long iron wire is used to form a rectangle. The ratio of the length to the width of the rectangle is 5:3. What is the area of the rectangle in square meters?

<gadget id="calculator">32 / 2</gadget>
<output>16</output>
<gadget id="calculator">5 + 3</gadget>
<output>8</output>
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>
<gadget id="calculator">16 * (5/8)</gadget>
<output>10</output>
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>
<gadget id="calculator">16 * (3/8)</gadget>
<output>6</output>
<gadget id="calculator">10 * 6</gadget>
<output>60</output>
<result>60</result>


列车从上海到广州，除起点和终点外还有10个停靠站．问铁路站要为这趟列车准备多少种车票？

The train from Shanghai to Guangzhou has 10 stops besides the starting point and the ending point. How many kinds of tickets should the railway station prepare for this train?

<gadget id="calculator">11 + 10 + 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1</gadget>
<output>66</output>
<result>66</result>


A is 24, (1/3) of A is equal to (1/3) of B, what is B?

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">(1/3) / (1/3)</gadget>
<output>1</output>
<gadget id="calculator">24 * 1</gadget>
<output>24</output>
<result>24</result>


一个等腰三角形形底和高的比是5：12，把它沿底边上的高剪开．拼成一个长方形．这个长方形的面积120平方分米，长方形的周长是多少．

The ratio of the base to the height of an isosceles triangle is 5:12, cut it along the height on the base. Make a rectangle. The area of this rectangle is 120 square centimeters, what is the perimeter of the rectangle?

<gadget id="calculator">12 / 17</gadget>
<output>12/17 = around 0.705882</output>
<gadget id="calculator">34 * (12/17)</gadget>
<output>24</output>
<gadget id="calculator">5 / 17</gadget>
<output>5/17 = around 0.294118</output>
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">34 * (5/17) * (1/2)</gadget>
<output>5</output>
<gadget id="calculator">24 + 5</gadget>
<output>29</output>
<gadget id="calculator">29 * 2</gadget>
<output>58</output>
<result>58</result>


出租汽车4千米起价10元，行驶4千米以后，每千米收费1.2元(不足1千米按1千米计)．李红乘坐出租车下车时付给司机16元(不计等候时间)．问李红乘坐出租车最多行驶了多少千米？

The starting price of a taxi is 10 yuan for 4 kilometers. After driving 4 kilometers, the fee is 1.2 yuan per kilometer (less than 1 kilometer is counted as 1 kilometer). Li Hong paid the driver 16 yuan when she got off the taxi (excluding the waiting time). Ask Li Hong how many kilometers did he travel by taxi at most?

<gadget id="calculator">16 - 10</gadget>
<output>6</output>
<gadget id="calculator">6 / 1.2</gadget>
<output>5</output>
<gadget id="calculator">5 + 4</gadget>
<output>9</output>
<result>9</result>


学校购进面包76箱，购进的牛奶是面包的9倍，学校购进的面包和牛奶一共有多少箱？

The school bought 76 boxes of bread and 9 times as much milk as bread. How many boxes of bread and milk did the school buy?

<gadget id="calculator">9 + 1</gadget>
<output>10</output>
<gadget id="calculator">76 * 10</gadget>
<output>760</output>
<result>760</result>


兰兰上学期期末考试．语文、数学、英语三科平均成绩是95分，语文、数学的平均成绩是96分，她英语考了多少分？

Lan Lan's final exam last semester. The average score of Chinese, Mathematics, and English is 95 points, and the average score of Chinese and Mathematics is 96 points. How many points did she score in the English test?

<gadget id="calculator">95 * 3</gadget>
<output>285</output>
<gadget id="calculator">96 * 2</gadget>
<output>192</output>
<gadget id="calculator">285 - 192</gadget>
<output>93</output>
<result>93</result>


有两个数的最大公因数是78，最小公倍数是468，其中一个数是156，另一个数是多少．

There are two numbers whose greatest common factor is 78 and least common multiple is 468, one of them is 156, what is the other number.

<gadget id="calculator">468 / 156</gadget>
<output>3</output>
<gadget id="calculator">3 * 78</gadget>
<output>234</output>
<result>234</result>


某班学生植树，第三天植的棵数恰好是前两天总和的2倍，第四天植的棵数恰好是前三天总和的2倍，以后每天植的棵数都这天以前植的棵数的2倍．到第五天为止，他们已经植完这批树的(1/9)，照这种植法，植完这批树共需多少天．

A certain class of students planted trees, the number of trees planted on the third day is exactly twice the sum of the previous two days, the number of trees planted on the fourth day is exactly twice the sum of the previous three days, and the number of trees planted every day after that 2 times the number of trees. By the fifth day, they had planted (1/9) of the trees. According to this planting method, how many days will it take to plant the trees?


一块长方形的玻璃，长是50厘米，宽是24厘米，这块玻璃的面积是多少平方厘米．

A rectangular piece of glass has a length of 50 cm and a width of 24 cm. What is the area of the glass in square centimeters?

<gadget id="calculator">50 * 24</gadget>
<output>1_200</output>
<result>1_200</result>


把两个棱长都是5厘米的正方体拼成一个长方体，长方体的表面积比两个正方体表面积的和少多少平方厘米

If two cubes with side lengths of 5 cm are put together to form a cuboid, the surface area of the cuboid is less than the sum of the surface areas of the two cubes

<gadget id="calculator">5 * 5 * 2</gadget>
<output>50</output>
<result>50</result>


我国的香港面积是0.111万平方千米，比张家港市大0.012万平方千米，张家港市的面积是多少万平方千米．

The area of Hong Kong in my country is 1,110 square kilometers, which is 0.12 million square kilometers larger than Zhangjiagang City. What is the area of Zhangjiagang City?

<gadget id="calculator">0.111 - 0.012</gadget>
<output>0.099</output>
<result>0.099</result>


小敏家离学校有280米，小敏一天往返学校两次要走多少米？

Xiao Min's home is 280 meters away from school. How many meters does Xiao Min have to walk to and from school twice a day?

<gadget id="calculator">2 * 2</gadget>
<output>4</output>
<gadget id="calculator">280 * 4</gadget>
<output>1_120</output>
<result>1_120</result>


学校举行运动会，要把10.5立方米的黄沙铺在长6米、宽3.5米的沙坑中，可以铺多厚？

When a school holds a sports meeting, 10.5 cubic meters of yellow sand should be spread in a sand pit with a length of 6 meters and a width of 3.5 meters. How thick can it be?

<gadget id="calculator">6 * 3.5</gadget>
<output>21</output>
<gadget id="calculator">10.5 / 21</gadget>
<output>0.5</output>
<result>0.5</result>


一个圆柱形水杯的容积是3.6升，底面积是1.2平方分米，装了(3/4)杯水，水面离杯口高多少分米？

The volume of a cylindrical water cup is 3.6 liters, the bottom area is 1.2 square decimeters, and (3/4) cup of water is filled, how many decimeters is the height of the water surface from the mouth of the cup?

<gadget id="calculator">3.6 / 1.2</gadget>
<output>3</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">3 * (1/4)</gadget>
<output>3/4 = around 0.75</output>
<result>3/4 = around 0.75</result>


甲、乙两人同时从A、B两地相向而行，经过5时相遇，相遇后乙又行1时正好到达A、B两地的中点．已知乙的速度为每小时18千米，那么A、B两地相距多少千米？

A and B walk toward each other from A and B at the same time, and meet at 5 o'clock. After meeting, B travels again at 1 o'clock to reach the midpoint between A and B. It is known that the speed of B is 18 kilometers per hour, so how many kilometers are the distance between A and B?

<gadget id="calculator">5 + 1</gadget>
<output>6</output>
<gadget id="calculator">6 * 18 * 2</gadget>
<output>216</output>
<result>216</result>


(2/11)的分子加上4，要使分数的大小不变，分母应加上多少．

Add 4 to the numerator of (2/11), how much should be added to the denominator to keep the size of the fraction unchanged.


6乘80的积再加上80得多少．

What is the product of 6 times 80 plus 80?

<gadget id="calculator">6 * 80</gadget>
<output>480</output>
<gadget id="calculator">480 + 80</gadget>
<output>560</output>
<result>560</result>


一辆汽车从甲地开往乙地，每小时行42千米，15小时可以到达，如果要提前1个小时到达，每小时应行多少千米？(用比例解答)

A car travels 42 kilometers per hour from place A to place B, and it takes 15 hours to get there. If you want to arrive 1 hour earlier, how many kilometers per hour should you drive? (answer with ratio)

<gadget id="calculator">42 * 15</gadget>
<output>630</output>
<gadget id="calculator">15 - 1</gadget>
<output>14</output>
<gadget id="calculator">630 / 14</gadget>
<output>45</output>
<result>45</result>


第一小学共有学生2700，其中女生人数是男生的(4/5)．女生有多少人？

There are 2700 students in No. 1 Primary School, among which the number of girls is boys (4/5). How many girls are there?

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">1 + (4/5)</gadget>
<output>9/5 = around 1.8</output>
<gadget id="calculator">2_700 / (9/5)</gadget>
<output>1_500</output>
<gadget id="calculator">1_500 * (4/5)</gadget>
<output>1_200</output>
<result>1_200</result>


一个数增加10%后是44，这个数是多少．

If a number is increased by 10%, it is 44. What is the number?

<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>
<gadget id="calculator">1 + (1/10)</gadget>
<output>11/10 = around 1.1</output>
<gadget id="calculator">44 / (11/10)</gadget>
<output>40</output>
<result>40</result>


小明和爷爷同时上楼，小明上楼的速度是爷爷的2倍．爷爷到达三楼时，小明到了多少楼．

Xiao Ming and grandpa go upstairs at the same time, and Xiao Ming goes upstairs twice as fast as grandpa. When grandpa reached the third floor, how many floors did Xiao Ming go to?

<gadget id="calculator">3 - 1</gadget>
<output>2</output>
<gadget id="calculator">2 * 2</gadget>
<output>4</output>
<gadget id="calculator">4 + 1</gadget>
<output>5</output>
<result>5</result>


比15千克多它的(2/5)是多少千克．

How many kilograms is (2/5) more than 15 kilograms?

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">1 + (2/5)</gadget>
<output>7/5 = around 1.4</output>
<gadget id="calculator">15 * (7/5)</gadget>
<output>21</output>
<result>21</result>


六2班有男生25人，是女生人数的(5/7)，全班有多少人？

There are 25 boys in Class 2 of Sixth, which is the number of girls (5/7). How many people are there in the whole class?

<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>
<gadget id="calculator">25 / (5/7)</gadget>
<output>35</output>
<gadget id="calculator">25 + 35</gadget>
<output>60</output>
<result>60</result>


新园中学原有电脑149台，今年新买的比原有少51台．学校现在共有电脑多少台？

Xinyuan Middle School originally had 149 computers, but the new ones purchased this year are 51 fewer than the original ones. How many computers does the school have in total?

<gadget id="calculator">149 - 51</gadget>
<output>98</output>
<gadget id="calculator">149 + 98</gadget>
<output>247</output>
<result>247</result>


某油厂五月份计划榨油78.5吨，实际多榨了670千克．上半月榨油49吨50千克，下半月实际榨油多少吨？

An oil factory planned to squeeze 78.5 tons of oil in May, but actually squeezed 670 kg more. In the first half of the month, 49 tons of 50 kilograms of oil were squeezed. How many tons of oil were actually squeezed in the second half of the month?

<gadget id="calculator">670 / 1_000</gadget>
<output>67/100 = around 0.67</output>
<gadget id="calculator">(67/100) - 49.05</gadget>
<output>-48.38</output>
<gadget id="calculator">78.5 + (-48.38)</gadget>
<output>30.12</output>
<result>30.12</result>


在一条直线上有四个点A，B，C，D，点B不在A，C，之间，点D是AC的中点，从B到D的距离是20cm，从B到C的距离是12cm，从A到B的距离是多少cm？

There are four points A, B, C, D on a straight line, point B is not between A, C, point D is the midpoint of AC, the distance from B to D is 20cm, and the distance from B to C is 12cm, what is the distance in cm from A to B?

<gadget id="calculator">20 - 12</gadget>
<output>8</output>
<gadget id="calculator">8 + 20</gadget>
<output>28</output>
<result>28</result>


我心里想了一个数，这个数除以3，加上0.8，得4.6．这个数是多少．

I thought of a number in my heart. Divide this number by 3 and add 0.8 to get 4.6. What is this number?

<gadget id="calculator">4.6 - 0.8</gadget>
<output>3.8</output>
<gadget id="calculator">3.8 * 3</gadget>
<output>11.4</output>
<result>11.4</result>


有两桶油，甲桶油用去(3/8)，乙桶油用去(1/6)，两桶剩下的油正好相等，原来甲桶油是乙桶油的((())/(()))．

There are two barrels of oil, the oil in barrel A is used (3/8), and the oil in barrel B is used (1/6). /(())).

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>
<gadget id="calculator">1 - (3/8)</gadget>
<output>5/8 = around 0.625</output>
<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">1 / (5/6)</gadget>
<output>6/5 = around 1.2</output>
<gadget id="calculator">1 / (5/8) / (6/5)</gadget>
<output>4/3 = around 1.333333</output>
<result>4/3 = around 1.333333</result>


六1班今天出勤48人，事假1人，病假1人，该班今天的出勤率是多少．

Class 61 has 48 people on duty today, 1 person on personal leave, and 1 person on sick leave. What is the attendance rate of this class today?

<gadget id="calculator">48 + 1 + 1</gadget>
<output>50</output>
<gadget id="calculator">48 / 50</gadget>
<output>24/25 = around 0.96</output>
<gadget id="calculator">100 / 100</gadget>
<output>1</output>
<gadget id="calculator">(24/25) * 1</gadget>
<output>24/25 = around 0.96</output>
<result>24/25 = around 0.96</result>


一个正方形草坪边长8米，四周有一条1米宽的小路，在小路靠着草坪的一边每隔1米放一盆红花，四个顶点处都要放，在小路的另一边每隔1米放一盆黄花，四个顶点处也要放，一共可以放多少盆花？

square lawn is 8 meters long, and there is a 1-meter-wide path around it. On the side of the path close to the lawn, place a pot of red flowers every 1 meter. Put a pot of yellow flowers on the rice, and put them at the four vertices. How many potted flowers can you put in total?

<gadget id="calculator">8 / 1</gadget>
<output>8</output>
<gadget id="calculator">8 + 1</gadget>
<output>9</output>
<gadget id="calculator">9 * 4</gadget>
<output>36</output>
<gadget id="calculator">36 - 4</gadget>
<output>32</output>
<gadget id="calculator">1 + 8 + 1</gadget>
<output>10</output>
<gadget id="calculator">10 / 1</gadget>
<output>10</output>
<gadget id="calculator">10 + 1</gadget>
<output>11</output>
<gadget id="calculator">11 * 4</gadget>
<output>44</output>
<gadget id="calculator">44 - 4</gadget>
<output>40</output>
<gadget id="calculator">32 + 40</gadget>
<output>72</output>
<result>72</result>


把一块蛋糕的(3/5)平均分给6个小朋友，每个人分得这个蛋糕的几分之几？

If (3/5) of a piece of cake is divided equally among 6 children, how much of the cake does each person get?

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>
<gadget id="calculator">(3/5) / 6</gadget>
<output>1/10 = around 0.1</output>
<result>1/10 = around 0.1</result>


元旦期间，柳老师在步行街手机店花了1600元买了一部手机，比原价便宜了20%，求这部手机原来价格是多少元？

During New Year's Day, Ms. Liu bought a mobile phone at a mobile phone shop on the pedestrian street for 1,600 yuan, which is 20% cheaper than the original price. How much is the original price of this mobile phone?

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">1_600 / (4/5)</gadget>
<output>2_000</output>
<result>2_000</result>


一本科技画报的价格是10.8元，一本小说优惠后的价格是科技画报的2.3倍，这本小说的价格是多少．

The price of a science and technology pictorial is 10.8 yuan, and the discounted price of a novel is 2.3 times that of a science and technology pictorial. What is the price of this novel?

<gadget id="calculator">10.8 * 2.3</gadget>
<output>24.84</output>
<result>24.84</result>


小红请了3个小朋友来家打羽毛球，他们每两人都打了一场，小红共打了多少次场羽毛球．

Xiaohong invited 3 children to play badminton at her home, and each of them played one game. How many times did Xiaohong play badminton in total?

<gadget id="calculator">1 - 1</gadget>
<output>0</output>
<gadget id="calculator">3 + 0</gadget>
<output>3</output>
<result>3</result>


甲乙两数是非零的自然数，如果甲数的(5/12)恰好是乙数的(1/6)，那么甲乙两数之积的最小值是多少．

The two numbers A and B are non-zero natural numbers. If (5/12) of A is exactly (1/6) of B, what is the minimum value of the product of A and B?

<gadget id="calculator">5 / 2</gadget>
<output>5/2 = around 2.5</output>
<gadget id="calculator">2 * 2 * (5/2)</gadget>
<output>10</output>
<result>10</result>


设X、Y为两个不同的数，规定X◎Y=(X+Y)/4，求A◎16=10中A的值．

Suppose X and Y are two different numbers, stipulate X◎Y=(X+Y)/4, find the value of A in A◎16=10.

<gadget id="calculator">40 - 16</gadget>
<output>24</output>
<result>24</result>


A/B=12…26，A最小可以是多少．

A/B=12...26, what is the minimum A can be.

<gadget id="calculator">26 + 1</gadget>
<output>27</output>
<gadget id="calculator">12 * 27</gadget>
<output>324</output>
<gadget id="calculator">324 + 26</gadget>
<output>350</output>
<result>350</result>


木工要做1400张桌子，已经做好了520张，剩下的要用16天完成，平均每天要做多少张？

The carpenter needs to make 1400 tables, 520 of which have already been completed, and the rest will take 16 days to complete. How many tables are made on average per day?

<gadget id="calculator">1_400 - 520</gadget>
<output>880</output>
<gadget id="calculator">880 / 16</gadget>
<output>55</output>
<result>55</result>


有一根绳子长31.4m，小红、小东和小孙分别想用这根绳子在操场上围出一块地，怎样围面积最大(不能靠墙)？围出的地中，面积最大的是多少平方米？

There is a rope with a length of 31.4m. Xiaohong, Xiaodong and Xiaosun want to use this rope to enclose a piece of land on the playground. How can they enclose the largest area (not against the wall)? What is the largest square meter of the enclosed ground?

<gadget id="calculator">31.4 / 3.14 / 2</gadget>
<output>5</output>
<gadget id="calculator">5 ** 2</gadget>
<output>25</output>
<gadget id="calculator">3.14 * 25</gadget>
<output>78.5</output>
<result>78.5</result>


同学们在山坡上种小树苗．种了80株，有6株没有成活．这批小树苗的成活率是多少？

The students planted saplings on the hillside. 80 plants were planted, but 6 plants did not survive. What is the survival rate of these small saplings?

<gadget id="calculator">80 - 6</gadget>
<output>74</output>
<gadget id="calculator">74 / 80</gadget>
<output>37/40 = around 0.925</output>
<gadget id="calculator">100 / 100</gadget>
<output>1</output>
<gadget id="calculator">(37/40) * 1</gadget>
<output>37/40 = around 0.925</output>
<result>37/40 = around 0.925</result>


在一个圆柱形水桶里，要放进一段截面半径是5厘米的圆钢．先把它全放入水里，桶里的水面就上升9厘米；再把水中的圆钢露出8厘米长，水面就下降4厘米，求这段圆钢的体积．

In a cylindrical bucket, put a piece of round steel with a section radius of 5 cm. Put it all into the water first, and the water level in the bucket will rise by 9 cm; then expose the round steel in the water to a length of 8 cm, and the water level will drop by 4 cm. Find the volume of this round steel.

<gadget id="calculator">5 ** 2</gadget>
<output>25</output>
<gadget id="calculator">8 / 4</gadget>
<output>2</output>
<gadget id="calculator">3.14 * 25 * 2 * 9</gadget>
<output>1_413</output>
<result>1_413</result>


小红读一本课外书，第一天读的页数是未读页数的(1/5)，第二天读了5页，这时已读与未读页数的比是1：4，这本书共有多少页？

Xiaohong reads an extra-curricular book. The number of pages she read on the first day is 1/5 of the number of unread pages, and 5 pages on the second day. At this time, the ratio of the number of pages read to the number of unread pages is 1:4 , how many pages does this book have?

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">(1/5) - (1/6)</gadget>
<output>1/30 = around 0.033333</output>
<gadget id="calculator">5 / (1/30)</gadget>
<output>150</output>
<result>150</result>


把一张长4分米，宽2分米的长方形纸对折，剪成两张一样大的正方形，每张正方形纸的周长是多少分米．

Fold a piece of rectangular paper with a length of 4 decimeters and a width of 2 decimeters in half, and cut it into two squares of the same size. What is the perimeter of each square paper in decimeters?

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


在学校举办的"我的中国梦"主题实践活动中，二年级有65名同学参加，三年级参加的人数比二年级的3倍少8人．三年级有多少人参加？

In the "My Chinese Dream" theme practice activity held by the school, 65 students in the second grade participated, and the number of participants in the third grade was 8 people less than three times that of the second grade. How many people in third grade attend?

<gadget id="calculator">65 * 3</gadget>
<output>195</output>
<gadget id="calculator">195 - 8</gadget>
<output>187</output>
<result>187</result>


养殖场有鸡300只，鸭的只数是鸡的(3/4)，且是鹅的(3/5)．鹅有多少只？

There are 300 chickens in the farm, the number of ducks is 3/4 of chickens, and 3/5 of geese. How many geese are there?

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>
<gadget id="calculator">(3/4) / (3/5)</gadget>
<output>5/4 = around 1.25</output>
<gadget id="calculator">300 * (5/4)</gadget>
<output>375</output>
<result>375</result>


一个长方体的长是8厘米，横截面积为5平方厘米的长方体，这个长方体的体积是多少立方厘米．

What is the volume of a cuboid whose length is 8 cm and whose cross-sectional area is 5 cm2?

<gadget id="calculator">5 * 8</gadget>
<output>40</output>
<result>40</result>


早餐店饼干每份2.9元，面包每份3.2元，蛋糕每份2.5元；果汁每瓶1.2元，酸奶每瓶0.8元．小芳要买一份饮料和一份点心做早餐，但只带了4元钱．请你写出所有不同的买法．

Biscuits at the breakfast shop are 2.9 yuan per serving, bread is 3.2 yuan per serving, cake is 2.5 yuan per serving; juice is 1.2 yuan per bottle, and yogurt is 0.8 yuan per bottle. Xiaofang wanted to buy a drink and a snack for breakfast, but she only brought 4 yuan. Please write down all the different ways of buying.

<gadget id="calculator">3.2 + 0.8</gadget>
<output>4</output>
<result>4</result>


小林骑自行车绕一个正方形操场巡视一周，他每分钟行400米，行驶了8分钟．这个操场的面积是多少公顷？

Kobayashi rides a bicycle around a square playground for a week. He travels 400 meters per minute for 8 minutes. What is the area of this playground?

<gadget id="calculator">8 / 4</gadget>
<output>2</output>
<gadget id="calculator">8 / 4 / 10_000</gadget>
<output>1/5_000 = around 0.0002</output>
<gadget id="calculator">400 * 2 * 400 * (1/5_000)</gadget>
<output>64</output>
<result>64</result>


According to 180-90=90, 90/30=3, what is a formula

<gadget id="calculator">180 - 90</gadget>
<output>90</output>
<gadget id="calculator">90 / 30</gadget>
<output>3</output>
<result>3</result>


一个长为7分米，宽为5分米的长方形，它的周长是多少．

What is the perimeter of a rectangle whose length is 7 decimeters and width is 5 decimeters?

<gadget id="calculator">7 + 5</gadget>
<output>12</output>
<gadget id="calculator">12 * 2</gadget>
<output>24</output>
<result>24</result>


张秘书8分钟打字960个，照这样计算，要打一篇有2760个字的文章，还需要多少时间？

Secretary Zhang types 960 words in 8 minutes. According to this calculation, how much time will it take to type an article with 2760 words?

<gadget id="calculator">960 / 8</gadget>
<output>120</output>
<gadget id="calculator">2_760 / 120</gadget>
<output>23</output>
<gadget id="calculator">23 - 8</gadget>
<output>15</output>
<result>15</result>


方方在计算除法时，把除数32错写成23，结果得到的商是27还余19，正确的商应该是多少．

When Fang Fang calculated the division, he wrote the divisor 32 as 23 by mistake. The resulting quotient was 27 with a remainder of 19. What should be the correct quotient?

<gadget id="calculator">23 * 27</gadget>
<output>621</output>
<gadget id="calculator">621 + 19</gadget>
<output>640</output>
<gadget id="calculator">640 / 32</gadget>
<output>20</output>
<result>20</result>


百万位上的5比百位上的5多多少．

How much more is the 5 in the million place than the 5 in the hundreds place?


王叔叔家同一天卖出三只羊，第一只36.2千克，第二只45.8千克，第三只53.4千克．最重的一只比最轻的一只重多少千克？

Uncle Wang's family sold three sheep on the same day, the first one weighed 36.2 kilograms, the second one weighed 45.8 kilograms, and the third sheep weighed 53.4 kilograms. How much does the heaviest one weigh more than the lightest one?

<gadget id="calculator">53.4 - 36.2</gadget>
<output>17.2</output>
<result>17.2</result>


<gadget id="calculator">1_756 - 398</gadget>
<output>1_358</output>
<result>1_358</result>


两个数相除的商是7.2，如果被除数的小数点向右移动两位，除数不变，商应该是④多少

The quotient of dividing two numbers is 7.2. If the decimal point of the dividend is moved to the right by two digits, the divisor remains the same. What should the quotient be?

<gadget id="calculator">7.2 * 100</gadget>
<output>720</output>
<result>720</result>


某青年1997年的年龄等于出生年份各数字的和，那么，他的出生年份是多少．

A young man's age in 1997 is equal to the sum of the numbers of his birth year, so what is his birth year?


一个高15厘米的圆锥体容器，装满水倒入和它等底的圆柱体量杯里，水的高度是多少厘米

A conical container with a height of 15 cm is filled with water and poured into a cylindrical measuring cup with the same bottom, what is the height of the water in cm

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">15 * (1/3)</gadget>
<output>5</output>
<result>5</result>


一个底面直径是2厘米，高9厘米的圆锥体木块，分成形状大小完全相同的两个木块后，表面积比原来增加多少平方厘米．

If a cone with a base diameter of 2 cm and a height of 9 cm is divided into two blocks of the same shape and size, how many square centimeters will the surface area increase compared to the original one?

<gadget id="calculator">9 / 2</gadget>
<output>9/2 = around 4.5</output>
<gadget id="calculator">2 * (9/2) * 2</gadget>
<output>18</output>
<result>18</result>


两列火车同时从两地相对开出，快车从甲地开往乙地，慢车从乙地开往甲地，快车每小时比慢车多行25千米，经过6小时相遇．相遇后两列车继续按原方向前进，又经过4小时，快车到达乙地．问甲、乙两地相距多少千米？

Two trains depart opposite from each other at the same time. The express train travels from A to B, and the slow train travels from B to A. The express train travels 25 kilometers longer than the slow train, and they meet after 6 hours. After meeting, the two trains continue to move forward in the original direction, and after another 4 hours, the express train arrives at point B. How many miles is the distance between A and B?

<gadget id="calculator">25 * 6</gadget>
<output>150</output>
<gadget id="calculator">6 - 6 - 4</gadget>
<output>-4</output>
<gadget id="calculator">6 + (-4)</gadget>
<output>2</output>
<gadget id="calculator">150 / 2</gadget>
<output>75</output>
<gadget id="calculator">75 * 10</gadget>
<output>750</output>
<result>750</result>


将一个高为10cm的圆柱的底面等分成若干份，切开后拼成一个近似长方体，表面积增加了80cm**2，求圆柱的体积．

Divide the bottom surface of a cylinder with a height of 10cm into several equal parts, cut them and assemble them into an approximate cuboid, the surface area increases by 80cm**2, find the volume of the cylinder.

<gadget id="calculator">80 / 2 / 10</gadget>
<output>4</output>
<gadget id="calculator">4 ** 2</gadget>
<output>16</output>
<gadget id="calculator">3.14 * 16 * 10</gadget>
<output>502.4</output>
<result>502.4</result>


一辆汽车2.5小时行200km，平均每小时行多少千米．

If a car travels 200 km in 2.5 hours, how many kilometers per hour will it travel on average?

<gadget id="calculator">200 / 2.5</gadget>
<output>80</output>
<result>80</result>


在一个周长是62.8m的圆形水池的周围修一条2m宽的环形小路，这条小路的占地面积是多少平方米？

Build a 2m wide circular path around a circular pool with a circumference of 62.8m. How many square meters does this path occupy?

<gadget id="calculator">2 * 3.14</gadget>
<output>6.28</output>
<gadget id="calculator">62.8 / 6.28</gadget>
<output>10</output>
<gadget id="calculator">10 + 2</gadget>
<output>12</output>
<gadget id="calculator">12 ** 2</gadget>
<output>144</output>
<gadget id="calculator">10 ** 2</gadget>
<output>100</output>
<gadget id="calculator">144 - 100</gadget>
<output>44</output>
<gadget id="calculator">3.14 * 44</gadget>
<output>138.16</output>
<result>138.16</result>


一个边长10厘米的正方形纸剪成两个完全相等的长方形，每个长方形的周长是多少厘米．

A square of paper with a side length of 10 cm is cut into two perfectly equal rectangles, what is the perimeter of each rectangle in cm?

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


4.8除以10%，结果比原数扩大多少倍

Divide 4.8 by 10%, how many times will the result be larger than the original number


林场有杉树286棵，多少．杉树和松树一共有多少棵．

There are 286 fir trees in the forest farm, how many. How many fir and pine trees are there altogether?


甲、乙两列火车同时从相距480千米的两站相对开出，经过2.5小时两车相遇，甲火车每小时行102千米，乙火车每小时行多少千米．

Two trains, A and B, leave at the same time from two stations 480 kilometers apart. After 2.5 hours, the two trains meet. Train A travels 102 kilometers per hour, and train B travels how many kilometers per hour.

<gadget id="calculator">480 / 2.5</gadget>
<output>192</output>
<gadget id="calculator">192 - 102</gadget>
<output>90</output>
<result>90</result>


三年级2个班的同学参加语文知识竞赛．每班派出7组人参加，每组有14人．一共有多少人参加比赛？

Students from two classes in the third grade participated in the Chinese knowledge competition. Each class sends 7 groups of people to participate, each group has 14 people. How many people are there in total?

<gadget id="calculator">14 * 7 * 2</gadget>
<output>196</output>
<result>196</result>


用一辆只能装50千克的小车去运10吨沙子，需要运多少次．

How many times does it take to transport 10 tons of sand with a cart that can only hold 50 kg?

<gadget id="calculator">1_000 / 50</gadget>
<output>20</output>
<gadget id="calculator">10 * 20</gadget>
<output>200</output>
<result>200</result>


一辆汽车从甲地开往乙地，每小时行55千米，5小时到达；返回时，每小时行60千米，几小时可以到达？

A car drives from A to B at 55 kilometers per hour and arrives in 5 hours; when returning, it travels 60 kilometers per hour, how many hours can it be reached?

<gadget id="calculator">6 / 60</gadget>
<output>1/10 = around 0.1</output>
<gadget id="calculator">55 * (1/10)</gadget>
<output>11/2 = around 5.5</output>
<result>11/2 = around 5.5</result>


张军家有240本书，正好是王丽家图书的(2/3)，而陈明家的图书有400本，是王丽家图书的几倍？

Zhang Jun's family has 240 books, which happen to be 2/3 of Wang Li's family's books, while Chen Ming's family has 400 books, how many times are Wang Li's books?

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>
<gadget id="calculator">240 / (2/3)</gadget>
<output>360</output>
<gadget id="calculator">400 / 360</gadget>
<output>10/9 = around 1.111111</output>
<result>10/9 = around 1.111111</result>


一件毛衣比一条裤子贵25%，那么一条裤子比一件毛衣便宜百分之几？

A sweater is 25% more expensive than a pair of pants, so what percentage is a pair of pants cheaper than a sweater?

<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>
<gadget id="calculator">(1/4) / (5/4)</gadget>
<output>1/5 = around 0.2</output>
<result>1/5 = around 0.2</result>


两个加数都是46，和是多少？

<gadget id="calculator">46 + 46</gadget>
<output>92</output>
<result>92</result>


文具店促销，买4本笔记本送1本，每本笔记本5元，一次买4本，每本便宜多少元．

Stationery store promotion, buy 4 notebooks and get 1 free, each notebook is 5 yuan, buy 4 notebooks at a time, how much is each notebook cheaper.

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


朱红的图书比李明多(1/10)，朱红的图书就相当于李明的多少

Zhu Hong has more books than Li Ming (1/10), and Zhu Hong has as many books as Li Ming

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>
<gadget id="calculator">1 + (1/10)</gadget>
<output>11/10 = around 1.1</output>
<result>11/10 = around 1.1</result>


一间长8米、宽6米、高2.5米的办公室需要粉刷，已知门窗共42平方米，需要粉刷的面积有多大(地面不刷)？

An office with a length of 8 meters, a width of 6 meters, and a height of 2.5 meters needs to be painted. It is known that the doors and windows are 42 square meters in total. How big is the area that needs to be painted (the floor is not painted)?

<gadget id="calculator">8 * 6</gadget>
<output>48</output>
<gadget id="calculator">8 * 2.5 * 2</gadget>
<output>40</output>
<gadget id="calculator">6 * 2.5 * 2</gadget>
<output>30</output>
<gadget id="calculator">30 - 42</gadget>
<output>-12</output>
<gadget id="calculator">48 + 40 + (-12)</gadget>
<output>76</output>
<result>76</result>


<gadget id="calculator">5.2 * 4</gadget>
<output>20.8</output>
<gadget id="calculator">3 * 1.5</gadget>
<output>4.5</output>
<gadget id="calculator">20.8 - 4.5</gadget>
<output>16.3</output>
<result>16.3</result>


一段公路边有梧桐树106棵，每相邻两棵之间的距离原来是9米，现在因树木长得太大显得较密，要改成15米的间隔，在多少棵树不需要移动？

There are 106 sycamore trees along a section of the road. The distance between each adjacent two trees used to be 9 meters, but now the trees are too large and appear denser. If the distance is changed to 15 meters, how many trees do not need to be moved?

<gadget id="calculator">106 - 1</gadget>
<output>105</output>
<gadget id="calculator">9 * 105</gadget>
<output>945</output>
<gadget id="calculator">3 * 3 * 5</gadget>
<output>45</output>
<gadget id="calculator">945 / 45</gadget>
<output>21</output>
<gadget id="calculator">21 + 1</gadget>
<output>22</output>
<result>22</result>


一个无盖的长方体铁盆，长4分米，宽和高都是2分米．要在铁盆的里外都喷一层防锈漆，喷防锈漆的部分有多大？(铁皮厚度不计)

A cuboid iron basin without a cover is 4 decimeters long and 2 decimeters wide and high. It is necessary to spray a layer of anti-rust paint on the inside and outside of the iron basin. How big is the part where the anti-rust paint is sprayed? (Iron sheet thickness is not counted)

<gadget id="calculator">4 * 2</gadget>
<output>8</output>
<gadget id="calculator">4 * 2 * 2</gadget>
<output>16</output>
<gadget id="calculator">2 * 2 * 2</gadget>
<output>8</output>
<gadget id="calculator">8 + 16 + 8</gadget>
<output>32</output>
<gadget id="calculator">32 * 2</gadget>
<output>64</output>
<result>64</result>


一条公路全长1200千米，修了6天，还剩234千米没修，平均每天修了多少千米？

highway is 1,200 kilometers long. After 6 days of repairing, there are still 234 kilometers left to be repaired. How many kilometers are repaired on average every day?

<gadget id="calculator">1_200 - 234</gadget>
<output>966</output>
<gadget id="calculator">966 / 6</gadget>
<output>161</output>
<result>161</result>


猪误人拿了20元钱去买价格是每瓶1元的汽水．这时，商店老板告诉他2个空瓶可再换一瓶汽水．那么，猪误人花完20元钱一共可以喝到多少瓶汽水．

The pig mistakenly took 20 yuan to buy a soda that costs 1 yuan per bottle. At this time, the store owner told him that two empty bottles can be exchanged for another bottle of soda. So, how many bottles of soda can the pig drink after spending 20 yuan by mistake.

<gadget id="calculator">20 / 2</gadget>
<output>10</output>
<gadget id="calculator">10 / 2</gadget>
<output>5</output>
<gadget id="calculator">20 + 10 + 5 + 2 + 1 + 1</gadget>
<output>39</output>
<result>39</result>


9=3**2, 16=4**2, 121=11**2, numbers like this 9, 16, and 121 are called square numbers. How many square numbers are there in the natural numbers 1--1999?


一根电线长30米，第一次剪去4.8米，第二次剪去15.2米，这样和原来相比，短了多少米？

A wire is 30 meters long, 4.8 meters are cut for the first time, and 15.2 meters are cut for the second time. Compared with the original, how many meters is it shorter?

<gadget id="calculator">4.8 + 15.2</gadget>
<output>20</output>
<result>20</result>


有6个同学面朝东站成一行，每次只能有5个同学向后转，则最少要做多少次就能使全部同学面朝西．

There are 6 students standing in a row facing east, and only 5 students can turn backwards at a time, so how many times should you do at least to make all the students face west.

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


一根长36厘米的铁丝，围成一个最大的正方形，正方形的边长是多少．

A wire 36 cm long forms the largest square, what is the side length of the square?

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


12个同样的圆锥形钢坯可以熔成多少个与它等底等高的圆柱形零件多少

How many cylindrical parts with the same base and height can be melted from 12 identical conical billets

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


新兴玩具厂计划生产1200只小猴，12天完成任务，结果10天就完成了任务，实际每天比计划每天多生产多少只？

Xinxing Toy Factory planned to produce 1,200 little monkeys and completed the task in 12 days, but the task was completed in 10 days. How many more monkeys were actually produced per day than planned?

<gadget id="calculator">1_200 / 10</gadget>
<output>120</output>
<gadget id="calculator">1_200 / 12</gadget>
<output>100</output>
<gadget id="calculator">120 - 100</gadget>
<output>20</output>
<result>20</result>


一张长方形纸，长是12厘米，长是宽的3倍，如果这张纸的四个角各剪去一个边长是2厘米的正方形，它的周长与原来比较有什么变化？周长是多少厘米？

A piece of rectangular paper is 12 centimeters long and three times as long as it is wide. If a square with a side length of 2 centimeters is cut from each of the four corners of the paper, what will be the change in its perimeter compared to the original? What is the circumference in centimeters?

<gadget id="calculator">12 / 3</gadget>
<output>4</output>
<gadget id="calculator">12 + 4</gadget>
<output>16</output>
<gadget id="calculator">16 * 2</gadget>
<output>32</output>
<result>32</result>


将一个周长为24厘米的正方形，分成两个相等的长方形，其中一长方形的周长是多少厘米．

Divide a square with a perimeter of 24 cm into two equal rectangles, what is the perimeter of one of the rectangles in cm?

<gadget id="calculator">24 / 4</gadget>
<output>6</output>
<gadget id="calculator">6 / 2</gadget>
<output>3</output>
<gadget id="calculator">6 + 3</gadget>
<output>9</output>
<gadget id="calculator">9 * 2</gadget>
<output>18</output>
<result>18</result>


操场上有学生144人，其中跳远的占总人数的(2/9)，打球的人数是跳远的(15/16)．打球的有多少人？

There are 144 students on the playground, of which the long jumpers account for the total number (2/9), and the number of players are long jumpers (15/16). How many people are playing?

<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>
<gadget id="calculator">15 / 16</gadget>
<output>15/16 = around 0.9375</output>
<gadget id="calculator">144 * (2/9) * (15/16)</gadget>
<output>30</output>
<result>30</result>


一个因数缩小到原来的(1/10)，另一个因数缩小到原来的(1/100)，积就缩小到原来的多少．

One factor is reduced to the original (1/10), and the other factor is reduced to the original (1/100), and the product is reduced to the original value.

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>
<gadget id="calculator">1 / 100</gadget>
<output>1/100 = around 0.01</output>
<gadget id="calculator">(1/10) * (1/100)</gadget>
<output>1/1_000 = around 0.001</output>
<result>1/1_000 = around 0.001</result>


有甲、乙两桶油，甲比乙多12千克，从两桶中各取出5千克后，甲的(1/3)等于乙的(1/2)．原来两桶油共多少千克？

There are two barrels of oil, A and B, and A is 12 kilograms more than B. After 5 kilograms are taken from each of the two barrels, A's (1/3) is equal to B's (1/2). How many kilograms are the original two barrels of oil?

<gadget id="calculator">3 / 1</gadget>
<output>3</output>
<gadget id="calculator">12 * 3</gadget>
<output>36</output>
<gadget id="calculator">5 - 12</gadget>
<output>-7</output>
<gadget id="calculator">36 + (-7)</gadget>
<output>29</output>
<gadget id="calculator">36 + 5 + 29</gadget>
<output>70</output>
<result>70</result>


长江是我国第一长河，全长6300千米，比世界第一大河尼罗河短300千米．尼罗河长多少千米？(用方程解答)

The Yangtze River is the longest river in my country, with a total length of 6,300 kilometers, which is 300 kilometers shorter than the world's largest river, the Nile. How many kilometers long is the Nile River? (solution with equation)

<gadget id="calculator">6_300 + 300</gadget>
<output>6_600</output>
<result>6_600</result>


有一列数：12、9、N、7、3，想让这列数的平均数不低于8，N最小应是多少．

There is a column of numbers: 12, 9, N, 7, 3. If the average of this column of numbers is not lower than 8, what should be the minimum value of N?

<gadget id="calculator">8 * 5</gadget>
<output>40</output>
<gadget id="calculator">12 + 9 + 7 + 3</gadget>
<output>31</output>
<gadget id="calculator">40 - 31</gadget>
<output>9</output>
<result>9</result>


甲乙两站相距189千米，一列快车和一列慢车同时分别从甲、乙两站相向而行，0.9小时后相遇．慢车每小时行90千米，快车每小时行多少千米？(用方程解)

Stations A and B are 189 kilometers apart. An express train and a local train run towards each other from A and B respectively at the same time, and they meet after 0.9 hours. The slow train travels 90 kilometers per hour, how many kilometers per hour does the express train travel? (solution by equation)

<gadget id="calculator">0.9 * 90</gadget>
<output>81</output>
<gadget id="calculator">189 - 81</gadget>
<output>108</output>
<gadget id="calculator">108 / 0.9</gadget>
<output>120</output>
<result>120</result>


小张阿姨的服装店卖给一顾客两套服装，结果一套赚了20%，另一套赔了20%，两套衣服都卖了120元，请同学们算一算，这笔生意是赔了，还是赚了？

Aunt Xiao Zhang’s clothing store sold two sets of clothes to a customer. As a result, one set made a profit of 20%, and the other set lost 20%. Lost or won?

<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">120 / (6/5)</gadget>
<output>100</output>
<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">120 / (4/5)</gadget>
<output>150</output>
<gadget id="calculator">100 + 150</gadget>
<output>250</output>
<gadget id="calculator">120 * 2</gadget>
<output>240</output>
<gadget id="calculator">250 - 240</gadget>
<output>10</output>
<result>10</result>


一个因数是40，是另一个因数的4倍，它们的积是多少

One factor is 40, which is 4 times the other factor, what is their product

<gadget id="calculator">40 / 4</gadget>
<output>10</output>
<gadget id="calculator">40 * 10</gadget>
<output>400</output>
<result>400</result>


下列各数中，与(2/5)不相等的是多少

Which of the following numbers is not equal to (2/5)

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">(2/5) / 100</gadget>
<output>1/250 = around 0.004</output>
<result>1/250 = around 0.004</result>


甲、乙两人工程队合修长255千米的公路，甲队每月修42千米，乙队每月修43千米．两队同时从两端开工，几个月修好这条公路？

A and B engineering teams work together to repair a 255-kilometer road. Team A repairs 42 kilometers per month, and team B repairs 43 kilometers per month. The two teams started working from both ends at the same time. How many months will it take to repair the road?

<gadget id="calculator">42 + 43</gadget>
<output>85</output>
<gadget id="calculator">255 / 85</gadget>
<output>3</output>
<result>3</result>


把一个高为1米的圆柱体切成底面是许多相等的扇形，再拼成一个近似的长方体，已知拼成后长方体表面积比原来圆柱表面积增加了40平方分米，原来圆柱体的体积是多少立方分米？

Cut a cylinder with a height of 1 meter into many equal sectors at the bottom, and then assemble it into an approximate cuboid. It is known that the surface area of the cuboid after the assembly is 40 square decimeters larger than the surface area of the original cylinder. The volume of the original cylinder is How many cubic decimeters?

<gadget id="calculator">1 * 10</gadget>
<output>10</output>
<gadget id="calculator">40 / 2 / 10</gadget>
<output>2</output>
<gadget id="calculator">2 ** 2</gadget>
<output>4</output>
<gadget id="calculator">3.14 * 4 * 10</gadget>
<output>125.6</output>
<result>125.6</result>


实验小学共有24人参加夏令营，其中男生11人，女生13人，旅馆为同学们提供了两种房间；4人一间70元，3人一间60元，且男女不能同住一间，怎样住最省钱？

A total of 24 students from the experimental primary school participated in the summer camp, including 11 boys and 13 girls. The hotel provides two types of rooms for the students: 70 yuan for 4 people, 60 yuan for 3 people, and men and women cannot share the same room. Live the cheapest?

<gadget id="calculator">2 + 1</gadget>
<output>3</output>
<gadget id="calculator">3 * 70</gadget>
<output>210</output>
<gadget id="calculator">3 + 1</gadget>
<output>4</output>
<gadget id="calculator">4 * 60</gadget>
<output>240</output>
<gadget id="calculator">210 + 240</gadget>
<output>450</output>
<result>450</result>


栽了100棵树，未成活率是5%，成活多少棵

Planted 100 trees, the failure rate is 5%, how many survived

<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">100 * (19/20)</gadget>
<output>95</output>
<result>95</result>


图书室新到图书400本，科技书占(1/5)，故事书占(3/8)，故事书比科技书多多少本？

There are 400 new books in the library, science books account for (1/5), story books account for (3/8), how many more story books than science books?

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">(3/8) - (1/5)</gadget>
<output>7/40 = around 0.175</output>
<gadget id="calculator">400 * (7/40)</gadget>
<output>70</output>
<result>70</result>


甲、乙两站相距128千米，A车从甲站到乙站需行2.5小时，B车从乙站到甲站需行2小时，现在两车分别从甲、乙两站于早上8：30分出发，相向而行，问两车相遇时，A车行了甲乙两站路程的几分之几？

Station A and Station B are 128 kilometers apart. It takes 2.5 hours for train A to travel from Station A to Station B, and 2 hours for train B to travel from Station B to Station A. Now the two trains depart from Station A and Station B respectively at 8:00 a.m. Start at 30 minutes and go towards each other. When the two cars meet, what fraction of the distance between A and B will be covered by car A?

<gadget id="calculator">128 / 2.5</gadget>
<output>51.2</output>
<gadget id="calculator">128 / 2</gadget>
<output>64</output>
<gadget id="calculator">51.2 + 64</gadget>
<output>115.2</output>
<gadget id="calculator">51.2 / 115.2</gadget>
<output>0.444444</output>
<result>0.444444</result>


从中午12点到半夜12点，分针与时针重合了几次？

From 12:00 noon to 12:00 midnight, how many times does the minute hand coincide with the hour hand?

<gadget id="calculator">60 - 5</gadget>
<output>55</output>
<gadget id="calculator">60 / 55</gadget>
<output>12/11 = around 1.090909</output>
<gadget id="calculator">12 / (12/11)</gadget>
<output>11</output>
<result>11</result>


小华搬进新居后，妈妈买了6双男式拖鞋和8双女式拖鞋，一共用去了92元，男式拖鞋每双8元，女式拖鞋每双多少元？(用方程解)

After Xiaohua moved into her new home, her mother bought 6 pairs of men's slippers and 8 pairs of women's slippers, which cost a total of 92 yuan. Men's slippers cost 8 yuan per pair, and how much does each pair of women's slippers cost? (solution by equation)

<gadget id="calculator">8 * 6</gadget>
<output>48</output>
<gadget id="calculator">92 - 48</gadget>
<output>44</output>
<gadget id="calculator">44 / 8</gadget>
<output>11/2 = around 5.5</output>
<result>11/2 = around 5.5</result>


一种新型手机，甲店的进货价比乙店的低10%，甲店按照30%的利润率定价，乙店按照20%的利润率定价，甲店的售价比乙店还便宜60元，乙店这款手机的进货价是多少？(利润率=利润/进价*100%)．

A new type of mobile phone, the purchase price of store A is 10% lower than that of store B, store A sets the price according to the profit margin of 30%, and store B sets the price according to the profit margin of 20%, the price of store A is 60 yuan cheaper than store B , What is the purchase price of this mobile phone in Store B? (Profit rate = profit / purchase price * 100%).

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>
<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>
<gadget id="calculator">(1/10) * (3/10)</gadget>
<output>3/100 = around 0.03</output>
<gadget id="calculator">(3/100) - 1 - (3/10)</gadget>
<output>-127/100 = around -1.27</output>
<gadget id="calculator">1 + (1/5) + (1/10) + (-127/100)</gadget>
<output>3/100 = around 0.03</output>
<gadget id="calculator">60 / (3/100)</gadget>
<output>2_000</output>
<result>2_000</result>


把一张正方形纸对折3次，得到的一份是这张纸的多少

Fold a piece of square paper in half 3 times, one part is the number of pieces of this paper

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">(1/2) * (1/2) * (1/2)</gadget>
<output>1/8 = around 0.125</output>
<result>1/8 = around 0.125</result>


故事书比科技书多(1/5)，故事书是科技书的多少，科技书比故事书少((())/(()))．

There are more story books than science books (1/5), the number of story books is science books, and less science books than story books ((())/(())).

<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>
<result>6/5 = around 1.2</result>


大明和芳芳做一批纸花，第一天做了总数的(3/7)，第二天做了总数的(2/7)，两天一共做了总数的几分之几？

Daming and Fangfang made a batch of paper flowers. They made (3/7) of the total number on the first day and (2/7) of the total number on the second day. What fraction of the total number did they make in the two days?

<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>
<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>
<gadget id="calculator">(3/7) + (2/7)</gadget>
<output>5/7 = around 0.714286</output>
<result>5/7 = around 0.714286</result>


用一根铁丝先焊接成一个棱长为6分米的立方体框架，如果改围成长为9分米，高2分米的长方体，这个长方体的表面积是多少？

Use an iron wire to weld a cube frame with a side length of 6 decimeters. If the perimeter is changed to a cuboid with a height of 9 decimeters and a height of 2 decimeters, what is the surface area of the cuboid?

<gadget id="calculator">12 / 4</gadget>
<output>3</output>
<gadget id="calculator">6 * 3</gadget>
<output>18</output>
<gadget id="calculator">18 - 9 - 2</gadget>
<output>7</output>
<gadget id="calculator">9 * 7</gadget>
<output>63</output>
<gadget id="calculator">9 * 2</gadget>
<output>18</output>
<gadget id="calculator">7 * 2</gadget>
<output>14</output>
<gadget id="calculator">63 + 18 + 14</gadget>
<output>95</output>
<gadget id="calculator">95 * 2</gadget>
<output>190</output>
<result>190</result>


有一块1.5公顷的三角形菜地，如果它的底是125米，高是多少？

There is a triangular vegetable field of 1.5 hectares, if its base is 125 meters, what is its height?

<gadget id="calculator">1.5 * 10_000</gadget>
<output>15_000</output>
<gadget id="calculator">2 / 125</gadget>
<output>2/125 = around 0.016</output>
<gadget id="calculator">15_000 * (2/125)</gadget>
<output>240</output>
<result>240</result>


我校新建教学楼，投资了23万元，比原计划节约2万元，节约了百分之几？

Our school has invested 230,000 yuan in a new teaching building, saving 20,000 yuan compared to the original plan. How much is the savings?

<gadget id="calculator">23 + 2</gadget>
<output>25</output>
<gadget id="calculator">2 / 25</gadget>
<output>2/25 = around 0.08</output>
<result>2/25 = around 0.08</result>


从一个热水瓶向量杯里倒水，每次都将量杯倒满．若倒4次，则多200毫升；若倒5次，则少300毫升．这个热水瓶的容量是多少毫升？

Pour water from a thermos vector cup, filling the measuring cup each time. If it is poured 4 times, it will be 200 ml more; if it is poured 5 times, it will be 300 ml less. What is the capacity of this hot water bottle in milliliters?

<gadget id="calculator">300 + 200</gadget>
<output>500</output>
<gadget id="calculator">5 - 4</gadget>
<output>1</output>
<gadget id="calculator">500 / 1</gadget>
<output>500</output>
<gadget id="calculator">500 * 4</gadget>
<output>2_000</output>
<gadget id="calculator">2_000 + 200</gadget>
<output>2_200</output>
<result>2_200</result>


某商品按定价出售，每个可获利润45元，现在按定价打八五折，出售8个，所获利润与按定价每个降价35元出售12个所获利润相等．这种商品定价多少元？

A certain commodity is sold at a fixed price, and each can earn a profit of 45 yuan. Now the price is 15% off, and 8 units are sold. The profit obtained is equal to the profit obtained from selling 12 units at a price reduction of 35 yuan each. How much is this item priced at?

<gadget id="calculator">45 - 35</gadget>
<output>10</output>
<gadget id="calculator">12 * 10</gadget>
<output>120</output>
<gadget id="calculator">120 / 8</gadget>
<output>15</output>
<gadget id="calculator">45 - 15</gadget>
<output>30</output>
<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>200</output>
<result>200</result>


打扫多功能教师，甲组同学(1/3)小时可以打扫完，乙组同学(1/4)小时可以打扫完，如果甲、乙合做，多少小时能打扫完整个教室？

For cleaning multi-functional teachers, students in group A can finish cleaning in (1/3) hour, and students in group B can finish cleaning in (1/4) hour. If A and B work together, how many hours can they clean the whole classroom?

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">1 / (1/3)</gadget>
<output>3</output>
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">1 / (1/4)</gadget>
<output>4</output>
<gadget id="calculator">3 + 4</gadget>
<output>7</output>
<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>
<result>1/7 = around 0.142857</result>


图书室里科技书占藏书量的20%，故事书占藏书量的(1/3)，科技书比故事书少500本．图书室共有藏书多少本？

In the library, science and technology books account for 20% of the book collection, story books account for 1/3 of the book collection, and there are 500 fewer science and technology books than story books. How many books are there in the library?

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">(1/3) - (1/5)</gadget>
<output>2/15 = around 0.133333</output>
<gadget id="calculator">500 / (2/15)</gadget>
<output>3_750</output>
<result>3_750</result>


小华记录了6月15日～6月21日一周的气温情况是：21度、24度、20度、27度、23度、21度、25度，这一周的平均气温是多少度？

Xiaohua recorded the temperature for a week from June 15th to June 21st: 21 degrees, 24 degrees, 20 degrees, 27 degrees, 23 degrees, 21 degrees, 25 degrees. What is the average temperature this week?

<gadget id="calculator">21 + 24 + 20 + 27 + 23 + 21 + 25</gadget>
<output>161</output>
<gadget id="calculator">161 / 7</gadget>
<output>23</output>
<result>23</result>


某厂生产一批零件，原计划每天做360个，20天做完，实际每天比原计划每天多做(1/4)，实际提前几天完成任务？(用比例解)

factory produces a batch of parts. The original plan is to make 360 parts per day, and it will be finished in 20 days. The actual production is 1/4 more than the original plan every day. How many days before the actual completion of the task? (Solve with ratio)

<gadget id="calculator">360 * 20</gadget>
<output>7_200</output>
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">360 * (1/4)</gadget>
<output>90</output>
<gadget id="calculator">360 + 90</gadget>
<output>450</output>
<gadget id="calculator">7_200 / 450</gadget>
<output>16</output>
<gadget id="calculator">20 - 16</gadget>
<output>4</output>
<result>4</result>


一根圆形柱子的周长是6.28米，这根柱子的直径是多少米？

The circumference of a circular pillar is 6.28 meters, what is the diameter of the pillar in meters?

<gadget id="calculator">6.28 / 3.14</gadget>
<output>2</output>
<result>2</result>


水果店卖出两筐单价相同的苹果，第一筐重25千克，第二筐重27.5千克，第二筐比第一筐多卖了8.75元，平均每千克苹果多少钱？(用算术和方程两种方法解答)

The fruit shop sells two baskets of apples with the same unit price. The first basket weighs 25 kilograms, and the second basket weighs 27.5 kilograms. The second basket is sold for 8.75 yuan more than the first basket. How much is the average price of apples per kilogram? (Solve by two methods of arithmetic and equation)

<gadget id="calculator">27.5 - 25</gadget>
<output>2.5</output>
<gadget id="calculator">8.75 / 2.5</gadget>
<output>3.5</output>
<result>3.5</result>


小亮在计算减法时，把减数380看成了38结果是528，正确得数应是多少．

When Xiao Liang calculated the subtraction, he regarded the subtrahend 380 as 38 and the result was 528. What should be the correct number?

<gadget id="calculator">528 + 38</gadget>
<output>566</output>
<gadget id="calculator">566 - 380</gadget>
<output>186</output>
<result>186</result>


一块空闲地块的占地面积为2450平方米，建了6个仓库，每个仓库占地面积为260平方米，这块地块还剩下多少平方米空地？

A vacant plot covers an area of 2,450 square meters, and 6 warehouses are built, each of which covers an area of 260 square meters. How many square meters of open space are left in this plot?

<gadget id="calculator">260 * 6</gadget>
<output>1_560</output>
<gadget id="calculator">2_450 - 1_560</gadget>
<output>890</output>
<result>890</result>


在一块长10分米、宽5分米的长方形铁板上，画一个最大的圆，圆的面积是多少．

Draw the largest circle on a rectangular iron plate with a length of 10 decimeters and a width of 5 decimeters. What is the area of the circle?

<gadget id="calculator">5 / 2</gadget>
<output>5/2 = around 2.5</output>
<gadget id="calculator">(5/2) ** 2</gadget>
<output>25/4 = around 6.25</output>
<gadget id="calculator">3.14 * (25/4)</gadget>
<output>19.625</output>
<result>19.625</result>


三年一班的48名同学参加植树活动，每位同学植树5棵，他们一共植树多少棵？

48 students from class one of three years participated in the tree planting activity. Each student planted 5 trees. How many trees did they plant in total?

<gadget id="calculator">5 * 48</gadget>
<output>240</output>
<result>240</result>


<gadget id="calculator">12 / 4</gadget>
<output>3</output>
<result>3</result>


直尺上的刻度从7到12是多少厘米．

How many centimeters are the scales on the ruler from 7 to 12?

<gadget id="calculator">12 - 7</gadget>
<output>5</output>
<result>5</result>


水果店从批发市场购进24箱芒果和19箱荔枝，一共用去2826元．每箱芒果56元，每箱荔枝多少元？

The fruit shop purchased 24 boxes of mangoes and 19 boxes of lychees from the wholesale market, costing a total of 2826 yuan. 56 yuan per box of mangoes, how much is it for each box of lychees?

<gadget id="calculator">56 * 24</gadget>
<output>1_344</output>
<gadget id="calculator">2_826 - 1_344</gadget>
<output>1_482</output>
<gadget id="calculator">1_482 / 19</gadget>
<output>78</output>
<result>78</result>


学校操场长40米，宽30米．小明绕操场跑了三圈，他跑了多少米？

The school playground is 40 meters long and 30 meters wide. Xiao Ming ran three laps around the playground, how many meters did he run?

<gadget id="calculator">40 + 30</gadget>
<output>70</output>
<gadget id="calculator">70 * 2 * 3</gadget>
<output>420</output>
<result>420</result>


小军有48张邮票，小红邮票的张数比小军的4倍少20张．小军有多少张邮票？

Xiaojun has 48 stamps, and the number of Xiaohong's stamps is 20 less than Xiaojun's 4 times. How many stamps does Xiaojun have?

<gadget id="calculator">48 * 4</gadget>
<output>192</output>
<gadget id="calculator">192 - 20</gadget>
<output>172</output>
<result>172</result>


一个圆柱体，削去6立方分米，正好削成与它等底等高的圆锥体．这个圆锥体的体积是多少立方分米．

A cylinder, shaved off by 6 cubic decimeters, is exactly shaved into a cone with its base and height. What is the volume of this cone in cubic decimeters.

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


有一个两位数，在它的某一位数字的前面加上一个小数点，再与这个两位数相加，和是20.9．这个两位数是多少．

There is a two-digit number, add a decimal point in front of one of its digits, and then add this two-digit number, and the sum is 20.9. What is this two-digit number.

<gadget id="calculator">1 + 0.1</gadget>
<output>1.1</output>
<gadget id="calculator">20.9 / 1.1</gadget>
<output>19</output>
<result>19</result>


一所小学有男生250人，女生比男生的2倍少100人，这所学校一共有多少人？

There are 250 boys in an elementary school, and 100 girls are 100 times less than boys. How many people are there in this school?

<gadget id="calculator">250 * 2</gadget>
<output>500</output>
<gadget id="calculator">500 - 100</gadget>
<output>400</output>
<gadget id="calculator">250 + 400</gadget>
<output>650</output>
<result>650</result>


运动会开幕式，160名同学组成了2个花束队，每个花束队4行，平均每行有多少名同学？

At the opening ceremony of the sports meeting, 160 students formed 2 bouquet teams, and each bouquet team has 4 rows. How many students are there on average in each row?

<gadget id="calculator">160 / 2 / 4</gadget>
<output>20</output>
<result>20</result>


一个平行四边形的面积是45dm**2，如果它的高缩小3倍，底不变，面积是多少．

The area of a parallelogram is 45dm**2, if its height is reduced by 3 times and its base remains unchanged, what is its area?

<gadget id="calculator">45 / 3</gadget>
<output>15</output>
<result>15</result>


丽丽的母亲给家中汇款1000元，按规定汇费是汇款的1%，丽丽的母亲应付汇费多少元．

Lili's mother remits 1,000 yuan to her family. According to regulations, the remittance fee is 1% of the remittance. How much is the remittance fee that Lili's mother should pay.

<gadget id="calculator">1 / 100</gadget>
<output>1/100 = around 0.01</output>
<gadget id="calculator">1_000 * (1/100)</gadget>
<output>10</output>
<result>10</result>


一个数的一半与3.5的和比10少1.6，求这个数．

The sum of half of a number and 3.5 is 1.6 less than 10, find this number.

<gadget id="calculator">10 - 1.6 - 3.5</gadget>
<output>4.9</output>
<gadget id="calculator">4.9 * 2</gadget>
<output>9.8</output>
<result>9.8</result>


一个正方形的边长是(3/10)米，它的周长是多少米？

The side length of a square is (3/10) meters, what is its perimeter in meters?

<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>
<gadget id="calculator">(3/10) * 4</gadget>
<output>6/5 = around 1.2</output>
<result>6/5 = around 1.2</result>


一个四位数，千位上是6，百位上是9，其余各位是0，把这个数平均分成3份，每份是多少．

A four-digit number, the thousands digit is 6, the hundreds digit is 9, and the rest digits are 0. Divide this number into 3 parts on average. What is the value of each part?

<gadget id="calculator">6_900 / 3</gadget>
<output>2_300</output>
<result>2_300</result>


15□3/3，要使商中间有0，□可以有多少种不同的填法．

15□3/3, how many different filling methods can be used to make the quotient have 0 in the middle.


圆锥形沙堆，底面半径2米，高1.5米．有一长方形跑道长100米，宽2米，把沙铺在跑道上，能铺多厚？

A conical sand pile with a base radius of 2 meters and a height of 1.5 meters. There is a rectangular runway 100 meters long and 2 meters wide. How thick can sand be spread on the runway?

<gadget id="calculator">2 ** 2</gadget>
<output>4</output>
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">100 * 2</gadget>
<output>200</output>
<gadget id="calculator">(1/3) / 200</gadget>
<output>1/600 = around 0.001667</output>
<gadget id="calculator">3.14 * 4 * 1.5 * (1/600)</gadget>
<output>0.0314</output>
<result>0.0314</result>


有一个93人的参观团，其中男47人，女46人．他们住进一个旅馆内，旅馆内有可住11人、7人、4人的三种房间．要求男、女分住不同房间，且房间要求住满，问至少要多少间房？

There is a tour group of 93 people, including 47 men and 46 women. They live in a hotel, which has three types of rooms that can accommodate 11 people, 7 people, and 4 people. Men and women are required to live in separate rooms, and the rooms are required to be fully occupied. How many rooms are required at least?

<gadget id="calculator">3 + 2 + 2 + 6</gadget>
<output>13</output>
<result>13</result>


百合每枝16元，康乃馨每枝5元，妈妈选了1枝百合和12枝康乃馨送给奶奶．这些花一共需要多少元？

Each lily is 16 yuan, and each carnation is 5 yuan. Mom chose 1 lily and 12 carnations for grandma. How much do these flowers cost in total?

<gadget id="calculator">16 * 1</gadget>
<output>16</output>
<gadget id="calculator">5 * 12</gadget>
<output>60</output>
<gadget id="calculator">16 + 60</gadget>
<output>76</output>
<result>76</result>


用一根56厘米长的铁丝做一个平行四边形框架，要使相邻两条边的比是3：4，把这个框架拉成长方形后，面积是多少平方厘米？

Use a 56 cm long iron wire to make a parallelogram frame. If the ratio of two adjacent sides is 3:4, what is the area in square centimeters when the frame is stretched into a rectangle?

<gadget id="calculator">56 / 2</gadget>
<output>28</output>
<gadget id="calculator">3 + 4</gadget>
<output>7</output>
<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>
<gadget id="calculator">28 * (3/7)</gadget>
<output>12</output>
<gadget id="calculator">4 / 7</gadget>
<output>4/7 = around 0.571429</output>
<gadget id="calculator">28 * (4/7)</gadget>
<output>16</output>
<gadget id="calculator">12 * 16</gadget>
<output>192</output>
<result>192</result>


在一个比例里，两个内项的积是(3/4)，其中一个外项是(1/2)，另一个外项是多少

In a ratio, the product of two inner terms is (3/4), one of the outer terms is (1/2), and the other outer term is

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">(3/4) / (1/2)</gadget>
<output>3/2 = around 1.5</output>
<result>3/2 = around 1.5</result>


植树节那天，六年级的同学要种80棵树，女生种了35棵，男生种了40棵．还有多少棵没种？(用两种方法列式计算)

On Arbor Day, the sixth grade students planted 80 trees, girls planted 35 trees, and boys planted 40 trees. How many are left unplanted? (calculated in two ways)

<gadget id="calculator">80 - 35 - 40</gadget>
<output>5</output>
<result>5</result>


一辆汽车由甲地开往乙地，每小时行80千米，已经行了1.5小时，已行的路程是剩下路程的(3/5)．按这样的速度，剩下的路程还要行多少小时？

A car drives from place A to place B at 80 kilometers per hour. It has been driven for 1.5 hours, and the distance traveled is the remaining distance (3/5). At this speed, how many hours will the rest of the journey take?

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>
<gadget id="calculator">1.5 / (3/5)</gadget>
<output>2.5</output>
<result>2.5</result>


家具厂上个月生产单人木床1500张，双人木床1850张，铁床2500张，铁床比木床少生产多少张？

Last month, the furniture factory produced 1,500 single wooden beds, 1,850 double wooden beds, and 2,500 iron beds. How many fewer iron beds were produced than wooden beds?

<gadget id="calculator">1_850 - 2_500</gadget>
<output>-650</output>
<gadget id="calculator">1_500 + (-650)</gadget>
<output>850</output>
<result>850</result>


一只鸽子0.5小时可飞行6千米，照这样计算，鸽子飞行24.36千米，需要多少小时？

A pigeon can fly 6 kilometers in 0.5 hours. According to this calculation, how many hours does it take for a pigeon to fly 24.36 kilometers?

<gadget id="calculator">6 / 0.5</gadget>
<output>12</output>
<gadget id="calculator">24.36 / 12</gadget>
<output>2.03</output>
<result>2.03</result>


生产一批零件，先由甲做6天，乙再接着做21天正好完成；如果两队合作12天可完成．现在由甲队做10天，余下的乙队接着做，还需多少天才能完成．

To produce a batch of parts, A will do it for 6 days first, and B will do it for 21 days to complete it; if the two teams cooperate, it can be completed in 12 days. Now Team A will do it for 10 days, and the rest of Team B will continue to do it. How many days will it take to complete.

<gadget id="calculator">1 / 20</gadget>
<output>1/20 = around 0.05</output>
<gadget id="calculator">(1/20) * 10</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">1 - (1/2)</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">1 / 30</gadget>
<output>1/30 = around 0.033333</output>
<gadget id="calculator">(1/2) / (1/30)</gadget>
<output>15</output>
<result>15</result>


What is the solution of the equation 0.4x=36 x=

<gadget id="calculator">36 / 0.4</gadget>
<output>90</output>
<result>90</result>


下列四个数中，最接近2000的是多少

Which of the following four numbers is closest to 2000


学校图书馆买来一批图书，分给五年级各个班级，如果每班分到35本，则少17本；如果每班分到30本，则多出18本，图书馆买来新图书一共多少本？

The school library bought a batch of books and distributed them to each class of the fifth grade. If each class was assigned 35 books, there would be 17 fewer books; if each class was assigned 30 books, there would be 18 more books. How many copies?

<gadget id="calculator">17 + 18</gadget>
<output>35</output>
<gadget id="calculator">35 - 30</gadget>
<output>5</output>
<gadget id="calculator">35 / 5</gadget>
<output>7</output>
<gadget id="calculator">35 * 7</gadget>
<output>245</output>
<gadget id="calculator">245 - 17</gadget>
<output>228</output>
<result>228</result>


甲、乙两人整理图书馆，如果把全部工作的(1/3)给甲做，则他需要的时间比两人合作做全部工作所需的时间少2天，如果把全部工作的(1/2)给乙做，则他需要的时间比两人合作全部工作所需的时间多2天，问甲乙合作需要多少天完成全部工作？列方程组：只列一个未知数，并解释．

A and B tidy up the library. If A does all the work (1/3), the time he needs is 2 days less than the time required by the two to do all the work together. If all the work (1/3) is done /2) For B to do it, the time he needs is 2 days longer than the time required for the two people to cooperate with each other. How many days does it take for A and B to complete the entire work? List equations: only list one unknown and explain.

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


一瓶酱油(2/5)千克，6天用完，平均每天用多少千克？

A bottle of soy sauce (2/5) kilograms, used up in 6 days, how many kilograms are used on average per day?

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">(2/5) / 6</gadget>
<output>1/15 = around 0.066667</output>
<result>1/15 = around 0.066667</result>


一块长方形菜地，长30米，宽16米．这块菜地占地面积多少平方米？

rectangular vegetable field is 30 meters long and 16 meters wide. How many square meters does this vegetable plot cover?

<gadget id="calculator">30 * 16</gadget>
<output>480</output>
<result>480</result>


小明有一本故事书，第一天看了26页，第二天看了20%，还剩下54页，这本书共有多少页？

Xiao Ming has a story book. He read 26 pages on the first day and 20% on the second day. There are 54 pages left. How many pages are there in this book?

<gadget id="calculator">26 + 54</gadget>
<output>80</output>
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">80 / (4/5)</gadget>
<output>100</output>
<result>100</result>


做一个无盖的圆柱形水桶，底面直径和高都是40cm，至少需要铁皮多少平方厘米？

To make a cylindrical bucket without a cover, the diameter and height of the bottom surface are both 40cm, how many square centimeters of iron sheet are needed at least?

<gadget id="calculator">40 / 2</gadget>
<output>20</output>
<gadget id="calculator">20 ** 2</gadget>
<output>400</output>
<gadget id="calculator">3.14 * 400</gadget>
<output>1_256</output>
<gadget id="calculator">3.14 * 40 * 40</gadget>
<output>5_024</output>
<gadget id="calculator">1_256 + 5_024</gadget>
<output>6_280</output>
<result>6_280</result>


把96平均分成8份，每份是多少．

Divide 96 into 8 parts on average, how much is each part?

<gadget id="calculator">96 / 8</gadget>
<output>12</output>
<result>12</result>


一个圆柱和一个圆锥底面周长之比为4：3，高之比为5：6，圆锥体积是圆柱体积的(1/2)少10立方厘米，圆柱体积是多少立方厘米？

The ratio of the circumference of a cylinder to the base of a cone is 4:3, and the ratio of height is 5:6. The volume of the cone is (1/2) less than the volume of the cylinder by 10 cubic centimeters. What is the volume of the cylinder in cubic centimeters?

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">40 * (1/2)</gadget>
<output>20</output>
<gadget id="calculator">20 - 9</gadget>
<output>11</output>
<gadget id="calculator">10 / 11</gadget>
<output>10/11 = around 0.909091</output>
<gadget id="calculator">40 * (10/11)</gadget>
<output>400/11 = around 36.363636</output>
<result>400/11 = around 36.363636</result>


两个加数的和是73.86，如果将一个加数增加12.37，另一个加数减少12.37，和是多少．

The sum of two addends is 73.86. If one is increased by 12.37 and the other is decreased by 12.37, what is the sum?

<gadget id="calculator">12.37 - 12.37</gadget>
<output>0</output>
<gadget id="calculator">73.86 + 0</gadget>
<output>73.86</output>
<result>73.86</result>


一个口袋中有3个黄球，黄球个数是红球的(1/4)，绿球个数是红球的(1/12)．在口袋里任意摸一个球，摸到绿球的可能性是多少．

There are 3 yellow balls in a pocket, the number of yellow balls is 1/4 of that of red balls, and the number of green balls is 1/12 of that of red balls. If you touch a ball at random in your pocket, what is the probability of getting a green ball?

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">3 / (1/4)</gadget>
<output>12</output>
<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>
<gadget id="calculator">12 * (1/12)</gadget>
<output>1</output>
<gadget id="calculator">3 + 12 + 1</gadget>
<output>16</output>
<gadget id="calculator">(1/12) / 16</gadget>
<output>1/192 = around 0.005208</output>
<gadget id="calculator">12 * (1/192)</gadget>
<output>1/16 = around 0.0625</output>
<result>1/16 = around 0.0625</result>


一个圆柱的底面积直径是8厘米，高是底面直径的(3/2)，这个圆柱的表面积是多少平方厘米？

The diameter of the base of a cylinder is 8 cm, and the height is (3/2) the diameter of the base. What is the surface area of the cylinder in square centimeters?

<gadget id="calculator">8 / 2</gadget>
<output>4</output>
<gadget id="calculator">4 ** 2</gadget>
<output>16</output>
<gadget id="calculator">3.14 * 16 * 2</gadget>
<output>100.48</output>
<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>
<gadget id="calculator">8 * (3/2)</gadget>
<output>12</output>
<gadget id="calculator">3.14 * 8 * 12</gadget>
<output>301.44</output>
<gadget id="calculator">100.48 + 301.44</gadget>
<output>401.92</output>
<result>401.92</result>


一间教室长9米，宽6米，高3米，现在要用涂料粉刷这间的四壁和顶棚．如果扣除门、窗和黑板22平方米，要粉刷的面积有多大？如果每平方用涂料0.15千克，一共要用多少千克涂料？

classroom is 9 meters long, 6 meters wide, and 3 meters high. Now it is necessary to paint the walls and ceiling of this room. If 22 square meters of doors, windows and blackboards are deducted, how big is the area to be painted? If 0.15 kg of paint is used per square meter, how many kilograms of paint will be used in total?

<gadget id="calculator">54 + 18 + 27</gadget>
<output>99</output>
<gadget id="calculator">99 * 2</gadget>
<output>198</output>
<gadget id="calculator">198 - 22 - 54</gadget>
<output>122</output>
<gadget id="calculator">122 * 0.15</gadget>
<output>18.3</output>
<result>18.3</result>


△/□=○…48，□最小是多少

△/□=○…48, what is the minimum value of □

<gadget id="calculator">48 + 1</gadget>
<output>49</output>
<result>49</result>


三年级有42人参加了音乐兴趣小组，29人参加了绘画兴趣小组，两个兴趣小组都参加的有15人，参加兴趣小组的一共有多少人？

In the third grade, 42 people participated in the music interest group, 29 people participated in the painting interest group, and 15 people participated in both interest groups. How many people participated in the interest group?

<gadget id="calculator">29 - 15</gadget>
<output>14</output>
<gadget id="calculator">42 + 14</gadget>
<output>56</output>
<result>56</result>


一辆汽车上山用30千米/时的速度行了4小时到山顶，下山准备用3小时到达山脚下的停车场，如果你是司机，你准备汽车行驶的速度应该是多少正好可以到？

A car goes up the mountain at a speed of 30 km/h for 4 hours to the top of the mountain, and it takes 3 hours to go down the mountain to reach the parking lot at the foot of the mountain. If you are the driver, what speed should you plan to drive the car just enough to get there?

<gadget id="calculator">4 / 3</gadget>
<output>4/3 = around 1.333333</output>
<gadget id="calculator">30 * (4/3)</gadget>
<output>40</output>
<result>40</result>


甲、乙、丙三个搬运工同时分别在三个条件和工作量完全相同的仓库工作．搬完货物甲用10小时，乙用12小时，丙用15小时．第二天三人又到两个较大的仓库搬货物，这两个仓库的工作量也相同，甲在A仓库，乙在B仓库，丙先帮甲后帮乙，结果干了16小时，同时搬运完毕，那么丙在A仓库工作了多少小时．

Three porters A, B, and C are working in three warehouses with exactly the same conditions and workload at the same time. After moving the goods, A takes 10 hours, B takes 12 hours, and C takes 15 hours. The next day, the three went to two larger warehouses to move goods. The workload of the two warehouses was also the same. A was in warehouse A, and B was in warehouse B. C helped A first and then B. They worked for 16 hours. At the same time, after the transportation is completed, how many hours did C work in warehouse A?

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>
<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>
<gadget id="calculator">1 / 15</gadget>
<output>1/15 = around 0.066667</output>
<gadget id="calculator">(1/10) + (1/12) + (1/15)</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">(1/4) * 16</gadget>
<output>4</output>
<gadget id="calculator">4 / 2</gadget>
<output>2</output>
<gadget id="calculator">(1/10) * 16</gadget>
<output>8/5 = around 1.6</output>
<gadget id="calculator">2 - (8/5)</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">(2/5) / (1/15)</gadget>
<output>6</output>
<result>6</result>


在5：7中，如果前项变为25，要使比值不变，后项应增加多少．

In 5:7, if the former term becomes 25, how much should the latter term be increased to keep the ratio constant.

<gadget id="calculator">7 * 5</gadget>
<output>35</output>
<gadget id="calculator">35 - 7</gadget>
<output>28</output>
<result>28</result>


一件上衣原价180元，现在打七折出售，比原价降低多少元？

The original price of a coat is 180 yuan, and now it is sold at a 30% discount. How much is it lower than the original price?

<gadget id="calculator">70 / 100</gadget>
<output>7/10 = around 0.7</output>
<gadget id="calculator">1 - (7/10)</gadget>
<output>3/10 = around 0.3</output>
<gadget id="calculator">180 * (3/10)</gadget>
<output>54</output>
<result>54</result>


一个三位数除以60有余数，余数最大是多少

What is the maximum remainder when dividing a three-digit number by 60?

<gadget id="calculator">60 - 1</gadget>
<output>59</output>
<result>59</result>


一个等腰直角三角形的面积是50平方厘米，它的直角边长是多少厘米．

The area of an isosceles right triangle is 50 square centimeters, what is the length of its right angle side in centimeters?


小芳在计算99*27时，将算式转化成(99+1)*27进行计算，计算的结果与正确的结果比多了多少

When Xiaofang calculates 99*27, she converts the formula into (99+1)*27 for calculation. How much more is the calculated result than the correct result?


5辆汽车2.5小时运煤81.25吨，平均每小时能运煤多少吨？

5 vehicles transport 81.25 tons of coal in 2.5 hours, how many tons of coal can be transported on average per hour?

<gadget id="calculator">81.25 / 2.5 / 5</gadget>
<output>6.5</output>
<result>6.5</result>


店内有台灯24个，第一天卖去(1/3)，第二天卖去余下的(3/4)，第三天则买入余下台灯的数目的两倍，问此时店内共有台灯多少个？

There are 24 desk lamps in the store, sell (1/3) on the first day, sell the rest (3/4) on the second day, and buy twice the number of the remaining desk lamps on the third day. how many?

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">24 * (1/3)</gadget>
<output>8</output>
<gadget id="calculator">24 - 8</gadget>
<output>16</output>
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">16 * (3/4)</gadget>
<output>12</output>
<gadget id="calculator">8 + 12</gadget>
<output>20</output>
<gadget id="calculator">24 - 20</gadget>
<output>4</output>
<gadget id="calculator">4 * 2</gadget>
<output>8</output>
<gadget id="calculator">4 + 8</gadget>
<output>12</output>
<result>12</result>


一件上衣240元，一条裤子60元，王老师买这样的8套衣服共需多少元？

A jacket is 240 yuan, and a pair of trousers is 60 yuan. How much does Mr. Wang need to buy these 8 sets of clothes?

<gadget id="calculator">240 + 60</gadget>
<output>300</output>
<gadget id="calculator">300 * 8</gadget>
<output>2_400</output>
<result>2_400</result>


4只大熊猫一星期吃掉竹叶89.6千克，平均每只大熊猫每天吃掉多少千克的竹叶？

Four giant pandas eat 89.6 kilograms of bamboo leaves in a week. How many kilograms of bamboo leaves does each giant panda eat per day?

<gadget id="calculator">89.6 / 7 / 4</gadget>
<output>3.2</output>
<result>3.2</result>


已知两个大于1的数互质，它们的和是5的倍数，它们的积是2924，那么它们的差等于多少．

It is known that two numbers greater than 1 are relatively prime, their sum is a multiple of 5, and their product is 2924, so what is their difference?

<gadget id="calculator">731 - 4</gadget>
<output>727</output>
<result>727</result>


一个长方体的木块，被截成两个完全相同的正方体．两个正方体的棱长之和比原来长方体棱长之和增加了16cm．求原来长方体的长是多少厘米？

A cuboid block of wood is cut into two identical cubes. The sum of the side lengths of the two cubes is 16 cm greater than the sum of the side lengths of the original cuboid. What is the length of the original cuboid in centimeters?

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


张华收集了50枚邮票，其中13枚是纪念邮票，其余的是普通邮票，普通邮票占总邮票的几分之几？

Zhang Hua collected 50 stamps, 13 of which are commemorative stamps, and the rest are ordinary stamps. What percentage of the total stamps are ordinary stamps?

<gadget id="calculator">50 - 13</gadget>
<output>37</output>
<gadget id="calculator">37 / 50</gadget>
<output>37/50 = around 0.74</output>
<result>37/50 = around 0.74</result>


<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">48 * (1/5)</gadget>
<output>48/5 = around 9.6</output>
<gadget id="calculator">120 - (48/5)</gadget>
<output>552/5 = around 110.4</output>
<result>552/5 = around 110.4</result>


已知一个梯形的面积是58平方厘米，它的上底是15厘米，下底是25厘米，它的高是多少厘米？

It is known that the area of a trapezoid is 58 square centimeters, its upper base is 15 cm, and its lower base is 25 cm. What is its height in cm?

<gadget id="calculator">15 + 25</gadget>
<output>40</output>
<gadget id="calculator">2 / 40</gadget>
<output>1/20 = around 0.05</output>
<gadget id="calculator">58 * (1/20)</gadget>
<output>29/10 = around 2.9</output>
<result>29/10 = around 2.9</result>


某地二月份某天上午气温是-2℃，中午时气温上升了7℃，此时的气温是多少℃．

In a certain place in February, the temperature in the morning is -2°C. At noon, the temperature rises by 7°C. What is the temperature in °C at this time?

<gadget id="calculator">(-2) + 7</gadget>
<output>5</output>
<result>5</result>


客车从甲城到乙城要10小时，货车从乙城到甲城需要15小时，两车从两城相向开出，相遇时客车距乙城还有192千米，求两城相距多少千米？

It takes 10 hours for a bus to go from city A to city B, and 15 hours for a truck to go from city B to city A. The two cars drive from the two cities in opposite directions. When they meet, the bus is still 192 kilometers away from city B. Find the distance in kilometers between the two cities ?

<gadget id="calculator">3 + 2</gadget>
<output>5</output>
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">192 / (2/5)</gadget>
<output>480</output>
<result>480</result>


某班统计数学成绩，全班平均分为85.13分，事后复查，发现张小云的成绩87误写成78．经重新计算，该班的平均分是85.31分．问这个班有多少人？

A certain class counted mathematics scores, and the average score of the whole class was 85.13 points. After the review, it was found that Zhang Xiaoyun's score of 87 was wrongly written as 78. After recalculation, the average score of the class is 85.31 points. How many people are there in this class?

<gadget id="calculator">87 - 78</gadget>
<output>9</output>
<gadget id="calculator">85.31 - 85.13</gadget>
<output>0.18</output>
<gadget id="calculator">9 / 0.18</gadget>
<output>50</output>
<result>50</result>


四丶五年级的同学为台风受灾地区的贫困学生捐款，四年级捐款1796.3元，比五年级少捐48.9元．两个年级一共捐款多少元？

Students in the fourth and fifth grades donated to poor students in typhoon-stricken areas. The fourth grade donated 1796.3 yuan, 48.9 yuan less than the fifth grade. How much is the total donation for the two grades?


天平一端放着一块巧克力，另一端放着(1/3)块巧克力和40克的砝码，这时天平恰好平衡．整块巧克力的质量是多少克．

A piece of chocolate is placed on one end of the balance, and (1/3) piece of chocolate and a weight of 40 grams are placed on the other end. At this time, the balance is just balanced. What is the mass of a bar of chocolate in grams?

<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">40 / (2/3)</gadget>
<output>60</output>
<result>60</result>


2张10元，4张1元，3张5角一共是多少元．

2 pieces of 10 yuan, 4 pieces of 1 yuan, 3 pieces of 50 cents, how much is the total.

<gadget id="calculator">2 * 10</gadget>
<output>20</output>
<gadget id="calculator">4 * 1</gadget>
<output>4</output>
<gadget id="calculator">5 / 10</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">(1/2) * 3</gadget>
<output>3/2 = around 1.5</output>
<gadget id="calculator">20 + 4 + (3/2)</gadget>
<output>51/2 = around 25.5</output>
<result>51/2 = around 25.5</result>


学校合唱队有男生42人，男生与女生人数的比是6：7，合唱队共有多少人

There are 42 boys in the school chorus. The ratio of boys to girls is 6:7. How many people are there in the chorus?

<gadget id="calculator">42 / 6</gadget>
<output>7</output>
<gadget id="calculator">6 + 7</gadget>
<output>13</output>
<gadget id="calculator">7 * 13</gadget>
<output>91</output>
<result>91</result>


用一条绳刚好围成一个长8米，宽4米的长方形，若改围成一个最大的正方形，这个正方形的边长是多少米？

Use a rope to form a rectangle with a length of 8 meters and a width of 4 meters. If it is changed to form the largest square, what is the side length of this square?

<gadget id="calculator">8 + 4</gadget>
<output>12</output>
<gadget id="calculator">2 / 4</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">12 * (1/2)</gadget>
<output>6</output>
<result>6</result>


小红读一本315页的故事书，第一天读了全书的(2/7)，第二天读了剩下的(1/5)．第二天读了多少页？

Xiaohong reads a 315-page story book. She reads the whole book (2/7) on the first day and the rest (1/5) on the second day. How many pages did you read the next day?

<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>
<gadget id="calculator">1 - (2/7)</gadget>
<output>5/7 = around 0.714286</output>
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">315 * (5/7) * (1/5)</gadget>
<output>45</output>
<result>45</result>


学校买来540本新书，其中科技书占(1/6)，文艺书占(1/3)，文艺书比科技书多多少本？

The school bought 540 new books, of which science and technology books accounted for (1/6), literature and art books accounted for (1/3), how many more literature and art books than science and technology books?

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">540 * (1/3)</gadget>
<output>180</output>
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">540 * (1/6)</gadget>
<output>90</output>
<gadget id="calculator">180 - 90</gadget>
<output>90</output>
<result>90</result>


在一个袋中装有10个白球和1一个红球，在袋中任意摸一个球，摸到红球的可能性是多少

There are 10 white balls and 1 red ball in a bag. If you touch any ball in the bag, what is the probability of getting a red ball?

<gadget id="calculator">1 + 10</gadget>
<output>11</output>
<gadget id="calculator">1 / 11</gadget>
<output>1/11 = around 0.090909</output>
<result>1/11 = around 0.090909</result>


学校食堂运来1吨煤，计划烧40天．由于改进炉灶，每天节省5千克，这批煤可以烧多少天？

The school cafeteria brought 1 ton of coal and planned to burn it for 40 days. How many days can this batch of coal be burned due to the improvement of the stove and the saving of 5 kg per day?

<gadget id="calculator">1_000 / 40</gadget>
<output>25</output>
<gadget id="calculator">1 * 25</gadget>
<output>25</output>
<gadget id="calculator">25 - 5</gadget>
<output>20</output>
<gadget id="calculator">1_000 / 20</gadget>
<output>50</output>
<gadget id="calculator">1 * 50</gadget>
<output>50</output>
<result>50</result>


用一块布的(2/7)做裤子，(3/7)做上衣，还剩这块布的几分之几没有用？

Use (2/7) of a piece of cloth to make trousers and (3/7) to make a jacket, what fraction of the remaining piece of cloth is useless?

<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>
<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>
<gadget id="calculator">(2/7) + (3/7)</gadget>
<output>5/7 = around 0.714286</output>
<gadget id="calculator">1 - (5/7)</gadget>
<output>2/7 = around 0.285714</output>
<result>2/7 = around 0.285714</result>


长方形长20分米，宽1米，周长多少米．

What is the perimeter of a rectangle that is 20 decimeters long and 1 meter wide?

<gadget id="calculator">20 / 10</gadget>
<output>2</output>
<gadget id="calculator">2 + 1</gadget>
<output>3</output>
<gadget id="calculator">3 * 2</gadget>
<output>6</output>
<result>6</result>


小华读一本书，每天读它的(1/4)，多少天读完这本书的(1/2)．

Xiaohua reads a book, reads (1/4) of it every day, how many days (1/2) of this book is finished.

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">(1/2) / (1/4) / 1</gadget>
<output>2</output>
<result>2</result>


有一条山路，一辆汽车上山时每小时行30千米，下山原路返回每小时行50千米，则汽车上山往返一次的平均速度是多少千米/时

There is a mountain road, a car travels 30 kilometers per hour when going up the mountain, and travels 50 kilometers per hour when going back down the original road, what is the average speed of the car going up and down the mountain in kilometers per hour?

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


某食堂三天用完一桶油，第一天用了8千克，第二天用了余下的(3/10)，第三天用的恰好是这桶油的50%．第二天和第三天一共用了多少千克油？

A canteen used up a barrel of oil in three days, used 8 kilograms on the first day, used the rest (3/10) on the second day, and used exactly 50% of the barrel of oil on the third day. How many kilograms of oil did you use on the second and third days?

<gadget id="calculator">8 - 2.4</gadget>
<output>5.6</output>
<gadget id="calculator">1 - 0.3 - 0.5</gadget>
<output>0.2</output>
<gadget id="calculator">5.6 / 0.2</gadget>
<output>28</output>
<gadget id="calculator">28 - 8</gadget>
<output>20</output>
<result>20</result>


从6072除以12的商里减去35与9的积，差是多少？

Subtract the product of 35 and 9 from the quotient of 6072 divided by 12. What is the difference?

<gadget id="calculator">6_072 / 12</gadget>
<output>506</output>
<gadget id="calculator">35 * 9</gadget>
<output>315</output>
<gadget id="calculator">506 - 315</gadget>
<output>191</output>
<result>191</result>


两个数相除得6.37，如果被除数扩大10倍，除数缩小为原来的(1/10)，商为多少

Divide two numbers to get 6.37. If the dividend is enlarged by 10 times and the divisor is reduced to the original (1/10), what is the quotient?


在一次救灾捐款活动中，红星小学五年级捐款340元，比六年级少15%，六年级捐款多少元？

In a disaster relief donation activity, the fifth grade of Hongxing Primary School donated 340 yuan, which is 15% less than that of the sixth grade. How much is the donation for the sixth grade?

<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>
<gadget id="calculator">1 - (3/20)</gadget>
<output>17/20 = around 0.85</output>
<gadget id="calculator">340 / (17/20)</gadget>
<output>400</output>
<result>400</result>


甲、乙二人同时从东、西村相向出发，甲每分钟行120米，乙每分钟行100米，甲和乙在过中点200米处相遇．东村到西村的路程是多少米？

A and B start from opposite sides at the same time, A travels 120 meters per minute, B travels 100 meters per minute, A and B meet at 200 meters past the midpoint. How many meters is the distance from East Village to West Village?

<gadget id="calculator">120 + 100</gadget>
<output>220</output>
<gadget id="calculator">120 - 100</gadget>
<output>20</output>
<gadget id="calculator">2 / 20</gadget>
<output>1/10 = around 0.1</output>
<gadget id="calculator">200 * (1/10)</gadget>
<output>20</output>
<gadget id="calculator">220 * 20</gadget>
<output>4_400</output>
<result>4_400</result>


□/4=23…3，□=多少．

<gadget id="calculator">23 * 4</gadget>
<output>92</output>
<gadget id="calculator">92 + 3</gadget>
<output>95</output>
<result>95</result>


秒针从数字6走到数字8，经过了多少秒．

How many seconds did it take for the second hand to move from the number 6 to the number 8?

<gadget id="calculator">8 - 6</gadget>
<output>2</output>
<gadget id="calculator">2 * 5</gadget>
<output>10</output>
<result>10</result>


我校食堂买来800千克大米，6天吃了120千克，照这样计算，剩下的还能吃多少天？(用比例的知识解答)

The canteen of our school bought 800 kilograms of rice and ate 120 kilograms in 6 days. According to this calculation, how many days can we eat the rest? (Answer with the knowledge of proportion)

<gadget id="calculator">800 - 120</gadget>
<output>680</output>
<gadget id="calculator">120 / 6</gadget>
<output>20</output>
<gadget id="calculator">680 / 20</gadget>
<output>34</output>
<result>34</result>


园林工人对一块750平方米的草坪进行剪修，平均每小时剪修84平方米，已经剪修了4.5小时，剩下的要在5小时内剪修完，平均每小时要剪修多少平方米？

A garden worker trims a lawn of 750 square meters, and cuts an average of 84 square meters per hour. It has been trimmed for 4.5 hours, and the rest will be trimmed within 5 hours. How many square meters should be trimmed per hour on average?

<gadget id="calculator">84 * 4.5</gadget>
<output>378</output>
<gadget id="calculator">750 - 378</gadget>
<output>372</output>
<gadget id="calculator">372 / 5</gadget>
<output>372/5 = around 74.4</output>
<result>372/5 = around 74.4</result>


修一条路，已经修了25.5米，剩下的是已修了的1.3倍，这条路全长多少米？

To build a road, 25.5 meters have been built, and the rest is 1.3 times of what has been built. How many meters is the total length of this road?

<gadget id="calculator">1.3 + 1</gadget>
<output>2.3</output>
<gadget id="calculator">25.5 * 2.3</gadget>
<output>58.65</output>
<result>58.65</result>


一辆压路机的滚筒是圆柱形，滚筒的长2米，底面直径1.5米，它滚动一周压路面积是多少立方米．

The drum of a road roller is cylindrical, the length of the drum is 2 meters, and the diameter of the bottom surface is 1.5 meters. What is the area of the road in cubic meters when it rolls once?

<gadget id="calculator">3.14 * 1.5 * 2</gadget>
<output>9.42</output>
<result>9.42</result>


If the sum of -4xa-3y**3 and 7x**2y2-b is a monomial, what is the value of ab

<gadget id="calculator">5 - (-1)</gadget>
<output>6</output>
<result>6</result>


李奶奶要靠一面墙建造一个半圆形的养鸡场，这个半圆形的篱笆长15.7米，围起来的养鸡场的半径是多少米？

Grandma Li wants to build a semicircular chicken farm against a wall. The semicircular fence is 15.7 meters long. What is the radius of the enclosed chicken farm?

<gadget id="calculator">2 / 3.14 / 2</gadget>
<output>0.318471</output>
<gadget id="calculator">15.7 * 0.318471</gadget>
<output>4.999995</output>
<result>4.999995</result>


小芳把一个边长3厘米的正方形，按2：1的比放大，放大后正方形的面积是多少？多少平方厘米

Xiaofang enlarges a square with a side length of 3 cm at a ratio of 2:1. What is the area of the enlarged square? how many square centimeters

<gadget id="calculator">3 * 2</gadget>
<output>6</output>
<gadget id="calculator">6 * 6</gadget>
<output>36</output>
<result>36</result>


《熊出没》这部动画片，每天播放2集，每集35分钟，一共播放了18天，这部动画片全长多少分钟？

The cartoon "Bear Infested" played 2 episodes every day, each episode was 35 minutes long, and it was played for a total of 18 days. How long is this cartoon in minutes?

<gadget id="calculator">35 * 2 * 18</gadget>
<output>1_260</output>
<result>1_260</result>


一件工作，甲单独做要用15小时，乙单独做要用10小时．甲乙合作完成(2/3)后，由甲独做，还要几小时才能做完？

A job alone takes 15 hours and B alone takes 10 hours. After the cooperation between A and B is completed (2/3), A will do it alone. How many hours will it take to finish it?

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>
<gadget id="calculator">1 - (2/3)</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">1 / 15</gadget>
<output>1/15 = around 0.066667</output>
<gadget id="calculator">(1/3) / (1/15)</gadget>
<output>5</output>
<result>5</result>


一个长方形长是4厘米，宽是3厘米，它的周长是多少厘米

A rectangle is 4 cm long and 3 cm wide, what is its perimeter in cm

<gadget id="calculator">4 + 3</gadget>
<output>7</output>
<gadget id="calculator">7 * 2</gadget>
<output>14</output>
<result>14</result>


阳光小学少先队员参加夏令营活动，原计划5天行160千米，现在要多行10千米，同样5天走完，实际每天比原计划多行多少千米？

The young pioneers of Sunshine Elementary School participated in the summer camp activities. They originally planned to walk 160 kilometers in 5 days. Now they have to walk 10 kilometers more. After the same 5 days, how much more kilometers do they actually travel every day than the original plan?

<gadget id="calculator">160 + 10</gadget>
<output>170</output>
<gadget id="calculator">170 / 5</gadget>
<output>34</output>
<gadget id="calculator">160 / 5</gadget>
<output>32</output>
<gadget id="calculator">34 - 32</gadget>
<output>2</output>
<result>2</result>


友谊家电将29寸超薄液晶电视按进价加价25%，然后优惠10%后售出，外送100元出租车车费，结果每台仍获利375元．这种电视的进价是多少元？

Friendship Home Appliances increased the purchase price of 29-inch ultra-thin LCD TVs by 25%, and then sold them at a 10% discount, and delivered 100 yuan of taxi fare. As a result, each TV still made a profit of 375 yuan. How much does this TV cost?

<gadget id="calculator">100 + 375</gadget>
<output>475</output>
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>
<gadget id="calculator">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">(5/4) * (9/10)</gadget>
<output>9/8 = around 1.125</output>
<gadget id="calculator">(9/8) - 1</gadget>
<output>1/8 = around 0.125</output>
<gadget id="calculator">475 / (1/8)</gadget>
<output>3_800</output>
<result>3_800</result>


一堆煤，计划每天烧40天，每天烧0.5吨，如果每天节约0.1吨，可以多烧多少天？(用比例解)

A pile of coal is planned to be burned for 40 days a day, and 0.5 tons are burned every day. If 0.1 tons is saved every day, how many more days can it be burned? (Solve with ratio)

<gadget id="calculator">40 * 0.5</gadget>
<output>20</output>
<gadget id="calculator">40 * 0.1</gadget>
<output>4</output>
<gadget id="calculator">4 - 20</gadget>
<output>-16</output>
<gadget id="calculator">20 + (-16)</gadget>
<output>4</output>
<gadget id="calculator">0.5 - 0.1</gadget>
<output>0.4</output>
<gadget id="calculator">4 / 0.4</gadget>
<output>10</output>
<result>10</result>


一袋同样规格的铁钉，称得它们共重664千克，取出10个称重40克．这袋铁钉有多少个？多少

bag of iron nails of the same specification weighs 664 kg in total, take out 10 nails and weigh 40 grams. How many nails are in this bag? How many

<gadget id="calculator">40 / 10</gadget>
<output>4</output>
<gadget id="calculator">664 / 4</gadget>
<output>166</output>
<result>166</result>


有10只灰兔，灰兔比白兔少6只，白兔有多少只？

There are 10 gray rabbits, and there are 6 less gray rabbits than white rabbits, how many white rabbits are there?

<gadget id="calculator">10 + 6</gadget>
<output>16</output>
<result>16</result>


武进电影院楼下有8排，共有428个座位，楼上有9排，每排28个座位，楼上比楼下少多少个座位？

Wujin Cinema has 8 rows downstairs with 428 seats in total, and 9 rows upstairs with 28 seats in each row. How many fewer seats are upstairs than downstairs?

<gadget id="calculator">9 * 28</gadget>
<output>252</output>
<gadget id="calculator">428 - 252</gadget>
<output>176</output>
<result>176</result>


盒子里有红、白两种球，其中红球有20个，占总数的(2/5)，那么白球有多少个．

There are red and white balls in the box, among which there are 20 red balls, accounting for 2/5 of the total, how many white balls are there?

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">20 / (2/5)</gadget>
<output>50</output>
<gadget id="calculator">50 - 20</gadget>
<output>30</output>
<result>30</result>


某天中午小明测得当地气温是3℃，晚上测得当地气温是零下6℃，这两次测得的温度相差多少．

One day at noon, Xiao Ming measured the local temperature as 3°C, and at night as minus 6°C. What is the difference between the two measured temperatures?

<gadget id="calculator">3 - (-6)</gadget>
<output>9</output>
<result>9</result>