某工程，甲、乙、丙合干8天可完成，乙、丙、丁合干10天可完成，甲、丁合干15天可完成，现在按甲、乙、丙、丁顺序各干1天，共经过多少天完成？

A certain project can be completed in 8 days by A, B, and C, 10 days by B, C, and D, and 15 days by A, B, and D. Now, each of A, B, C, and D is 1 days, how many days did it take to complete?

<gadget id="calculator">6 * 4</gadget>
<output>24</output>
<gadget id="calculator">24 + 3</gadget>
<output>27</output>
<result>27</result>


比的前项扩大4倍，后项缩小4倍，比值扩大多少倍

The former item of the ratio is enlarged by 4 times, and the latter item is reduced by 4 times, how many times the ratio is enlarged

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


织布厂五月份前11天每天织布560米，后20天共织布14300米，这个月平均每天织布多少米？

The weaving factory weaves 560 meters of cloth per day in the first 11 days of May, and a total of 14,300 meters of cloth in the last 20 days. How many meters of cloth are weaved per day on average this month?

<gadget id="calculator">560 * 11</gadget>
<output>6_160</output>
<gadget id="calculator">6_160 + 14_300</gadget>
<output>20_460</output>
<gadget id="calculator">11 + 20</gadget>
<output>31</output>
<gadget id="calculator">20_460 / 31</gadget>
<output>660</output>
<result>660</result>


李老师在体育用品商店买了4筒羽毛球，每筒6个，一共用去192元．平均每个羽毛球多少元？

Teacher Li bought 4 tubes of badminton at the sporting goods store, each with 6 tubes, for a total of 192 yuan. How much is an average badminton?

<gadget id="calculator">192 / 4 / 6</gadget>
<output>8</output>
<result>8</result>


甲乙两人合做一批零件，甲每小时能做50个，乙每小时能做75个．甲先做1个小时，乙再合做，又做了8小时才完成任务．这批零件有多少个？

A and B work together to make a batch of parts, A can make 50 parts per hour, and B can make 75 parts per hour. A first worked for 1 hour, and B worked together again, and it took another 8 hours to complete the task. How many parts are there in this batch?

<gadget id="calculator">50 * 1</gadget>
<output>50</output>
<gadget id="calculator">50 + 75</gadget>
<output>125</output>
<gadget id="calculator">125 * 8</gadget>
<output>1_000</output>
<gadget id="calculator">50 + 1_000</gadget>
<output>1_050</output>
<result>1_050</result>


一辆汽车从甲地开往乙地，每小时行40千米，4小时到达，返回时如果每小时行50千米，多长时间能到达乙地？(用比例知识解答)

car drives from A to B, travels 40 kilometers per hour, and arrives in 4 hours. If it travels 50 kilometers per hour on the return trip, how long will it take to reach B? (Answer with proportional knowledge)

<gadget id="calculator">40 * 4</gadget>
<output>160</output>
<gadget id="calculator">160 / 50</gadget>
<output>16/5 = around 3.2</output>
<result>16/5 = around 3.2</result>


已知两个因数的积是(4/5)，其中的一个因数是6，另一个因数是多少．

It is known that the product of two factors is (4/5), one of which is 6, and what is the other factor.

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">(4/5) / 6</gadget>
<output>2/15 = around 0.133333</output>
<result>2/15 = around 0.133333</result>


客、货两车同时从甲、乙两地相对开出，相遇时客、货两车所行路程的比是5：4，相遇后货车每小时比相遇前每小时多走27千米．客车仍按原速前进，结果两车同时到达对方的出发站．已知客车一共行了10小时．甲、乙两地相距多少千米？

Two passenger and freight vehicles leave from A and B oppositely at the same time. When they meet, the ratio of the distance traveled by the passenger and freight vehicles is 5:4. After the meeting, the freight vehicle travels 27 kilometers more per hour than before the meeting. The passenger car is still moving forward at the original speed, and as a result, the two cars arrive at the departure station of the other side at the same time. It is known that the bus has traveled for a total of 10 hours. How many kilometers are there between A and B?

<gadget id="calculator">5 / 4</gadget>
<output>5/4 = around 1.25</output>
<gadget id="calculator">(5/4) * (5/4)</gadget>
<output>25/16 = around 1.5625</output>
<gadget id="calculator">(25/16) - 1</gadget>
<output>9/16 = around 0.5625</output>
<gadget id="calculator">27 / (9/16)</gadget>
<output>48</output>
<gadget id="calculator">48 * (5/4)</gadget>
<output>60</output>
<gadget id="calculator">60 * 10</gadget>
<output>600</output>
<result>600</result>


一个数减去67，得54，这个数是多少？

Subtract 67 from a number to get 54. What is this number?

<gadget id="calculator">54 + 67</gadget>
<output>121</output>
<result>121</result>


红星小学买了一些体育用品．买足球用去了135.60元，买篮球比足球多花了12.20元．红星小学买足球和篮球共花了多少元钱？

Hongxing Primary School bought some sporting goods. It cost 135.60 yuan to buy football, and 12.20 yuan more to buy basketball than football. How much did Hongxing Elementary School spend on football and basketball?

<gadget id="calculator">135.6 + 12.2 + 135.6</gadget>
<output>283.4</output>
<result>283.4</result>


某服装厂做一批儿童服装，计划每天做350套，18天完工，实际10天完成，实际平均每天做多少套？

A garment factory makes a batch of children's clothing, plans to make 350 sets per day, and completes the work in 18 days, but actually completes it in 10 days. How many sets are actually produced on average per day?

<gadget id="calculator">18 / 10</gadget>
<output>9/5 = around 1.8</output>
<gadget id="calculator">350 * (9/5)</gadget>
<output>630</output>
<result>630</result>


李老师买来20盒圆珠笔，买来的钢笔比圆珠笔少(2/5)，买来钢笔多少盒？

Mr. Li bought 20 boxes of ballpoint pens, and the number of pens he bought was less than that of ballpoint pens (2/5). How many boxes of pens did he buy?

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>
<gadget id="calculator">20 * (3/5)</gadget>
<output>12</output>
<result>12</result>


80*50积的末尾有多少个0．

How many zeros are there at the end of the 80*50 product?


立华小学买白粉笔175盒，比彩色粉笔多26盒，一共买了多少盒粉笔？

Lihua Primary School bought 175 boxes of white chalk, 26 boxes more than colored chalks. How many boxes of chalks did they buy in total?

<gadget id="calculator">175 - 26</gadget>
<output>149</output>
<gadget id="calculator">149 + 175</gadget>
<output>324</output>
<result>324</result>


一个数的12%是(1/5)，这个数是多少？正确算式是多少

12% of a number is (1/5), what is this number? what is the correct formula

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">12 / 100</gadget>
<output>3/25 = around 0.12</output>
<gadget id="calculator">(1/5) / (3/25)</gadget>
<output>5/3 = around 1.666667</output>
<result>5/3 = around 1.666667</result>


有四个数，它们的平均数是5．把其中一个数1改为9，那么它们的平均数变成了多少．

There are four numbers whose average is 5. If one of the numbers 1 is changed to 9, what is the average of them?

<gadget id="calculator">9 - 1</gadget>
<output>8</output>
<gadget id="calculator">8 / 4</gadget>
<output>2</output>
<gadget id="calculator">5 + 2</gadget>
<output>7</output>
<result>7</result>


小明妈妈做水果生意．今天进了一批水果，其中香蕉50箱，是苹果数量的(2/5)，苹果数量刚好是梨的(2/9)，这批水果中梨有多少箱？

Xiao Ming's mother is in the fruit business. A batch of fruits came in today, including 50 boxes of bananas, which is 2/5 of the number of apples, which is exactly 2/9 of the number of pears. How many boxes of pears are there in this batch of fruits?

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>
<gadget id="calculator">50 / (2/5) / (2/9)</gadget>
<output>1_125/2 = around 562.5</output>
<result>1_125/2 = around 562.5</result>


在比例尺是1：100000的地图上，量得甲、乙两地相距20厘米，两地的实际距离是多少千米．

On a map with a scale of 1:100000, the distance between A and B is 20 cm. What is the actual distance in kilometers between the two places?

<gadget id="calculator">1 / 100_000</gadget>
<output>1/100_000 = around 0.00001</output>
<gadget id="calculator">20 / (1/100_000) / 100_000</gadget>
<output>20</output>
<result>20</result>


一种洗衣机价格提高10%后又降低了10%，现在每台售价435.6元，原来售价多少元．

The price of a washing machine is increased by 10% and then decreased by 10%. Now the price of each washing machine is 435.6 yuan, how much is the original price.

<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>
<gadget id="calculator">(1/10) * (1/10)</gadget>
<output>1/100 = around 0.01</output>
<gadget id="calculator">(1/10) - (1/10) - (1/100)</gadget>
<output>-1/100 = around -0.01</output>
<gadget id="calculator">1 + (-1/100)</gadget>
<output>99/100 = around 0.99</output>
<gadget id="calculator">435.6 / (99/100)</gadget>
<output>440</output>
<result>440</result>


在一个长5分米，宽3分米的长方形里画一个最大的圆，这个圆的半径是多少分米．

Draw the largest circle in a rectangle with a length of 5 decimeters and a width of 3 decimeters. What is the radius of this circle in decimeters?

<gadget id="calculator">5 / 2</gadget>
<output>5/2 = around 2.5</output>
<result>5/2 = around 2.5</result>


亮亮参加书法比赛得奖了，他和其他获奖的每个小朋友都合了一次影，他一共合了3次影．一共有几个小朋友获奖了？

Liangliang participated in the calligraphy competition and won a prize. He took a picture with each of the other award-winning children, and he took a total of 3 pictures. How many children have won the prize?

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


红星小学有一个长方形的操场，这个操场的长是70米，宽比长短15米，小丽沿着这个操场跑2圈，她一共跑了多少米？

There is a rectangular playground in Hongxing Primary School. The length of this playground is 70 meters, and the ratio of width to length is 15 meters. Xiaoli ran 2 laps along the playground. How many meters did she run in total?

<gadget id="calculator">70 - 15</gadget>
<output>55</output>
<gadget id="calculator">55 + 70</gadget>
<output>125</output>
<gadget id="calculator">125 * 2 * 2</gadget>
<output>500</output>
<result>500</result>


某人看书，看了全书20%，还剩240页没看，这本书共有多少页．

A person reads a book and reads 20% of the book, and there are 240 pages left. How many pages are there in this book?

<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">240 / (4/5)</gadget>
<output>300</output>
<result>300</result>


一个数的7.2倍是133.2，这个数是多少．

7.2 times of a number is 133.2, what is this number?

<gadget id="calculator">133.2 / 7.2</gadget>
<output>18.5</output>
<result>18.5</result>


一个圆形水池周围每隔2米栽一棵柳树，共栽40棵，水池的周长是多少？

A willow tree is planted every 2 meters around a circular pool, and a total of 40 willows are planted. What is the perimeter of the pool?

<gadget id="calculator">40 * 2</gadget>
<output>80</output>
<result>80</result>


一箱草莓有30个草莓，现共有4箱，一共有多少个草莓？

There are 30 strawberries in a box of strawberries. Now there are 4 boxes. How many strawberries are there in total?

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


客车和货车同时从相距550千米的甲、乙两地相对开出，经过2.5小时两车相距200千米．已知货车每小时行60千米，问客车每小时行多少千米？

A passenger car and a freight car depart from places A and B which are 550 kilometers apart at the same time. After 2.5 hours, the distance between the two cars is 200 kilometers. It is known that the truck travels 60 kilometers per hour, how many kilometers per hour does the passenger car travel?

<gadget id="calculator">550 - 200</gadget>
<output>350</output>
<gadget id="calculator">350 / 2.5</gadget>
<output>140</output>
<gadget id="calculator">140 - 60</gadget>
<output>80</output>
<result>80</result>


四年三班共有40名学生，期中测试时有2名学生因病缺考，这时班级英语成绩平均为79分，后来这2人补考都得了99分，那么四年三班的英语平均成绩是多少分？

There are a total of 40 students in the third class of four years. During the mid-term test, 2 students missed the exam due to illness. At this time, the average English score of the class was 79 points. Later, these two students scored 99 points in the make-up exam. So the average English score of the third class of the four years is How much is it?

<gadget id="calculator">40 - 2</gadget>
<output>38</output>
<gadget id="calculator">79 * 38</gadget>
<output>3_002</output>
<gadget id="calculator">99 * 2</gadget>
<output>198</output>
<gadget id="calculator">3_002 + 198</gadget>
<output>3_200</output>
<gadget id="calculator">3_200 / 40</gadget>
<output>80</output>
<result>80</result>


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


一瓶可乐400升，喝了其中的25%，又喝了余下的60%，还剩下多少升可乐．

A bottle of Coke is 400 liters, 25% of it is drunk, and the remaining 60% is drunk, how many liters of Coke are left?

<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>
<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">400 * (3/4) * (2/5)</gadget>
<output>120</output>
<result>120</result>


一个三角形的底是8厘米，高是底的一半，这个三角形的面积是多少．

The base of a triangle is 8 cm and the height is half of the base. What is the area of the triangle?

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


一只西瓜要竖直切成22块，最少要切多少刀．

If a watermelon needs to be cut vertically into 22 pieces, how many knives should be cut at least?

<gadget id="calculator">22 / 2</gadget>
<output>11</output>
<result>11</result>


礼堂里有一根长方体的立柱，这根柱子高3.5米，底面是边长0.4米的正方形，现在要重新油漆这根柱子，如果每平方米用油漆125克，那至少要用油漆多少克？

There is a rectangular column in the auditorium. This column is 3.5 meters high and the bottom is a square with a side length of 0.4 meters. Now this column needs to be repainted. If 125 grams of paint is used per square meter, how many grams of paint should be used at least?

<gadget id="calculator">3.5 * 0.4 * 4 * 125</gadget>
<output>700</output>
<result>700</result>


商店从工厂批发了80部快译通，批发价每台180元，先按每台200元的价格卖出50台后，开始降价销售，降价后每台160元，如果剩余商品全部售出，商店是赚钱还是亏钱？

The shop wholesaled 80 units of Kuaiyitong from the factory, and the wholesale price was 180 yuan each. After selling 50 units at a price of 200 yuan each, the store began to sell at a reduced price. After the price reduction, each unit was 160 yuan. If all the remaining products were sold, Is the store making money or losing money?

<gadget id="calculator">200 - 180</gadget>
<output>20</output>
<gadget id="calculator">20 * 50</gadget>
<output>1_000</output>
<gadget id="calculator">180 - 160</gadget>
<output>20</output>
<gadget id="calculator">80 - 50</gadget>
<output>30</output>
<gadget id="calculator">20 * 30</gadget>
<output>600</output>
<gadget id="calculator">1_000 - 600</gadget>
<output>400</output>
<result>400</result>


我国京杭大运河全长1794千米，比苏伊士运河的10倍还多74千米．苏伊士运河全长多少千米？

my country's Beijing-Hangzhou Grand Canal has a total length of 1,794 kilometers, which is 74 kilometers longer than 10 times that of the Suez Canal. How long is the Suez Canal in kilometers?

<gadget id="calculator">1_794 - 74</gadget>
<output>1_720</output>
<gadget id="calculator">1_720 / 10</gadget>
<output>172</output>
<result>172</result>


某仓库的长是8米，宽为5米，高3米，它能容纳物体的体积是多少米**3．

The length of a warehouse is 8 meters, the width is 5 meters, and the height is 3 meters. What is the volume of the object that it can hold in meters**3.

<gadget id="calculator">8 * 5 * 3</gadget>
<output>120</output>
<result>120</result>


一个电影院共有182个座位．票价每张15元，如果一场电影把票全部售完，收入是多少元？

A cinema has a total of 182 seats. The ticket price is 15 yuan each. If all the tickets for a movie are sold out, how much is the income?

<gadget id="calculator">15 * 182</gadget>
<output>2_730</output>
<result>2_730</result>


小平期中考试语文93分，数学100分，英语98分，这三门课平均成绩是多少．

In Xiaoping's mid-term exam, Chinese scored 93, mathematics scored 100, and English scored 98. What is the average score of these three courses?

<gadget id="calculator">93 + 100 + 98</gadget>
<output>291</output>
<gadget id="calculator">291 / 3</gadget>
<output>97</output>
<result>97</result>


红星机订厂五月份生产机床500台，六月份生产了650台．六月份比五月份增产了百分之几？

Hongxing Machine Order Factory produced 500 machine tools in May and 650 in June. By what percentage was the increase in June compared to May?

<gadget id="calculator">650 - 500</gadget>
<output>150</output>
<gadget id="calculator">150 / 500</gadget>
<output>3/10 = around 0.3</output>
<result>3/10 = around 0.3</result>


一位搬运工人搬运500件瓷器，规定每件运费2元，若损坏一件瓷器，不仅不给运费，还要赔偿3元．结果这位搬运工只得到950元，这位工人损坏了几件瓷器？

A porter moves 500 pieces of porcelain, and the shipping fee is 2 yuan for each piece. If a piece of porcelain is damaged, not only will the shipping fee not be paid, but also 3 yuan will be compensated. As a result, the porter only got 950 yuan. How many pieces of porcelain did the worker damage?

<gadget id="calculator">500 * 2</gadget>
<output>1_000</output>
<gadget id="calculator">1_000 - 950</gadget>
<output>50</output>
<gadget id="calculator">2 + 3</gadget>
<output>5</output>
<gadget id="calculator">50 / 5</gadget>
<output>10</output>
<result>10</result>


甲数=2*2*3，乙数=2*3*5，甲乙两个数的最小公倍数是多少．

The number A=2*2*3, the number B=2*3*5, what is the least common multiple of the two numbers A and B?

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


小虎将新买的一瓶净含量是625ml的啤酒完全浸没在装满水的盆中，溢出的水将多少

Xiaohu completely immerses a new bottle of beer with a net content of 625ml in a basin filled with water, how much water will overflow


小红和小芳在看同一种科幻书，两天后，小红对小芳说："我已经看了全书的25%了．"小芳说："我已经看了全书的(1/3)，后面还有80页没看．"那么，小红已经看了多少页？

Xiaohong and Xiaofang were reading the same science fiction book. Two days later, Xiaohong said to Xiaofang: "I have read 25% of the whole book." Xiaofang said: "I have read (1/3) of the whole book." , there are still 80 pages that I haven’t read.” So, how many pages has Xiaohong read?

<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">80 / (2/3)</gadget>
<output>120</output>
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">120 * (1/4)</gadget>
<output>30</output>
<result>30</result>


六年级一班有56人，其中(4/7)喜欢跳舞，(3/4)喜欢唱歌，没有人既不喜欢跳舞又不喜欢唱歌．既喜欢跳舞又喜欢唱歌的有多少人？

There are 56 students in class one of the sixth grade, among them (4/7) like to dance, (3/4) like to sing, no one likes neither dancing nor singing. How many people like to both dance and sing?

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">56 * (3/4)</gadget>
<output>42</output>
<gadget id="calculator">4 / 7</gadget>
<output>4/7 = around 0.571429</output>
<gadget id="calculator">56 * (4/7)</gadget>
<output>32</output>
<gadget id="calculator">32 - 56</gadget>
<output>-24</output>
<gadget id="calculator">42 + (-24)</gadget>
<output>18</output>
<result>18</result>


笑笑和淘气两人去商场买文具，已知笑笑带的钱是淘气的3倍，笑笑买钢笔用去25%，买辞典又用去了余下的50%，如果这时笑笑再给淘气5元钱，两人的钱数正好相等．那么笑笑原来有多少元．

Xiaoxiao and Naughty went to the shopping mall to buy stationery. It is known that Xiaoxiao brought three times as much money as Naughty. Xiaoxiao used 25% to buy pens, and the remaining 50% to buy dictionaries. Give naughty 5 yuan, and the amount of money between the two is exactly equal. So how much is Xiaoxiao?

<gadget id="calculator">5 + 5</gadget>
<output>10</output>
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">3 * (1/4) * (1/2)</gadget>
<output>3/8 = around 0.375</output>
<gadget id="calculator">3 * (1/4)</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">3 * (1/2)</gadget>
<output>3/2 = around 1.5</output>
<gadget id="calculator">(3/8) - (3/4) - (3/2) - 1</gadget>
<output>-23/8 = around -2.875</output>
<gadget id="calculator">3 + (-23/8)</gadget>
<output>1/8 = around 0.125</output>
<gadget id="calculator">10 / (1/8)</gadget>
<output>80</output>
<gadget id="calculator">80 * 3</gadget>
<output>240</output>
<result>240</result>


△/5=□…○，○里最大填多少．

△/5=□…○, ○ is the maximum number to fill.

<gadget id="calculator">5 - 1</gadget>
<output>4</output>
<result>4</result>


把(5/8)的分子加上10，要使分数的大小不变，分母应乘多少

Add 10 to the numerator of (5/8), how much should the denominator be multiplied to keep the size of the fraction constant

<gadget id="calculator">10 + 5</gadget>
<output>15</output>
<gadget id="calculator">15 / 5</gadget>
<output>3</output>
<result>3</result>


甲、乙两个两位数，甲数(1/3)的与乙数的(2/5)一样大，甲乙两个数和的最小值是多少．

A and B are two two-digit numbers, the number of A (1/3) is the same as the number of B (2/5), what is the minimum value of the sum of the two numbers of A and B?

<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>
<gadget id="calculator">12 * (5/6)</gadget>
<output>10</output>
<gadget id="calculator">12 + 10</gadget>
<output>22</output>
<result>22</result>


将10种不同的小球各100个放入同一个袋子里．从袋子中取出若干个小球，要想在取出的小球中必须有3种同样的球并有10个以上的话，最少要从袋中取出多少个小球？

Put 100 each of 10 different balls into the same bag. Take out several small balls from the bag. If there must be 3 types of the same ball and more than 10 of the taken out small balls, how many small balls should be taken out of the bag at least?

<gadget id="calculator">100 * 2</gadget>
<output>200</output>
<gadget id="calculator">10 - 2</gadget>
<output>8</output>
<gadget id="calculator">10 * 8</gadget>
<output>80</output>
<gadget id="calculator">200 + 80 + 1</gadget>
<output>281</output>
<result>281</result>


同学们回收废旧电池，三年级回收了308节，比二年级多回收76节，两个年级共回收了多少节废旧电池？

The students recycled used batteries. The third grade recycled 308 batteries, 76 more than the second grade. How many used batteries were recycled in the two grades?

<gadget id="calculator">308 - 76</gadget>
<output>232</output>
<gadget id="calculator">308 + 232</gadget>
<output>540</output>
<result>540</result>


一块长24米，宽16米的菜地，如果每平方米种4棵菜，这块地可种菜多少棵？

A vegetable field with a length of 24 meters and a width of 16 meters, if 4 vegetables are planted per square meter, how many vegetables can be grown in this field?

<gadget id="calculator">24 * 16 * 4</gadget>
<output>1_536</output>
<result>1_536</result>


每支钢笔16元，买三送一，如果一次买3支，每支便宜多少元．

Each pen is 16 yuan, buy three get one free, if you buy 3 pens at a time, how much is each pen cheaper?

<gadget id="calculator">3 + 1</gadget>
<output>4</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">16 - 12</gadget>
<output>4</output>
<result>4</result>


玲玲看一本书，第一天看了全书的20%．第二天看了余下页数的(3/8)少10页，这时，已看的数与没看的页数的比是3：5．这本书有多少页？

Lingling reads a book and reads 20% of the whole book on the first day. On the second day, the number of pages read (3/8) is 10 less. At this time, the ratio of the number of pages read to the number of pages not read is 3:5. How many pages does this book have?

<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">3 / 8</gadget>
<output>3/8 = around 0.375</output>
<gadget id="calculator">(4/5) * (3/8)</gadget>
<output>3/10 = around 0.3</output>
<gadget id="calculator">3 + 5</gadget>
<output>8</output>
<gadget id="calculator">(3/10) - (3/8)</gadget>
<output>-3/40 = around -0.075</output>
<gadget id="calculator">(1/5) + (-3/40)</gadget>
<output>1/8 = around 0.125</output>
<gadget id="calculator">10 / (1/8)</gadget>
<output>80</output>
<result>80</result>


一个梯形的面积是48cm**3，下底长7cm，高是8cm，上底长多少cm．

The area of a trapezoid is 48cm**3, the length of the bottom is 7cm, the height is 8cm, what is the length of the top in cm?

<gadget id="calculator">2 / 8</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">48 * (1/4)</gadget>
<output>12</output>
<gadget id="calculator">12 - 7</gadget>
<output>5</output>
<result>5</result>


同学们爬山，上山平均每分钟走60米，下山从原路返回，平均每分钟走80米，往返一次用70分钟．从山下到山上的路程是多少米？(用方程解答)

The students climbed the mountain and walked up the mountain at an average of 60 meters per minute, and went down the mountain and returned from the original road at an average of 80 meters per minute. It took 70 minutes to go back and forth. How many meters is the distance from the bottom of the mountain to the top of the mountain? (solution with equation)

<gadget id="calculator">1 / 60</gadget>
<output>1/60 = around 0.016667</output>
<gadget id="calculator">1 / 80</gadget>
<output>1/80 = around 0.0125</output>
<gadget id="calculator">(1/60) + (1/80)</gadget>
<output>7/240 = around 0.029167</output>
<gadget id="calculator">70 / (7/240)</gadget>
<output>2_400</output>
<result>2_400</result>


去年学校选出校级"三好学生"120人，比今年少(1/5)，今年选出校级"三好学生"多少？(列方程求解．)

Last year, the school selected 120 school-level "three-good students", which is less than this year (1/5). How many school-level "three-good students" were selected this year? (Solve equations.)

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">120 / (4/5)</gadget>
<output>150</output>
<result>150</result>


要挖一个底面周长是6.28m的圆柱形蓄水池，如果要蓄水7.85m**3，这个水池要挖多少米深？(得数保留一位小数)

It is necessary to dig a cylindrical cistern with a bottom circumference of 6.28m. If it is necessary to store water of 7.85m**3, how many meters deep should the cistern be dug? (retain one decimal place)

<gadget id="calculator">6.28 / 3.14 / 2</gadget>
<output>1</output>
<gadget id="calculator">1 ** 2</gadget>
<output>1</output>
<gadget id="calculator">3.14 * 1</gadget>
<output>3.14</output>
<gadget id="calculator">7.85 / 3.14</gadget>
<output>2.5</output>
<result>2.5</result>


学校用地砖铺会议室地面，用每块面积为0.16平方米的地砖1000块能铺满．如果改用边长为5分米的方砖来铺，需要多少块才能铺满？(用两种方法解答)

The school uses floor tiles to pave the floor of the conference room, and 1,000 floor tiles each with an area of 0.16 square meters can be used to cover the floor. If you use square bricks with a side length of 5 decimeters instead, how many bricks are needed to cover them? (answer in two ways)

<gadget id="calculator">5 / 10</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">(1/2) * (1/2)</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">1_000 / (1/4)</gadget>
<output>4_000</output>
<gadget id="calculator">0.16 * 4_000</gadget>
<output>640</output>
<result>640</result>


一只猎狗正在追赶前方20米处的兔子，已知狗一跳前进3米．兔子一跳前进2.1米，狗跳3次的时间兔子可以跳4次．问：兔子跑多少米后被猎狗追上．

A hunting dog is chasing a rabbit 20 meters ahead. It is known that the dog advances 3 meters with one jump. The rabbit moves forward 2.1 meters in one hop, and the rabbit can hop 4 times in the time that the dog hops 3 times. Question: How many meters did the rabbit run before being overtaken by the hunting dog?

<gadget id="calculator">3 * 3</gadget>
<output>9</output>
<gadget id="calculator">4 * 2.1</gadget>
<output>8.4</output>
<gadget id="calculator">9 - 8.4</gadget>
<output>0.6</output>
<gadget id="calculator">20 / 0.6</gadget>
<output>33.333333</output>
<gadget id="calculator">33.333333 * 2.1 * 4</gadget>
<output>279.999997</output>
<result>279.999997</result>


一张长为10厘米，宽为4厘米的长方形纸板，可以剪成边长为2厘米的小正方形多少个

A piece of rectangular cardboard with a length of 10 cm and a width of 4 cm can be cut into small squares with a side length of 2 cm

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


六1班女同学的人数是男同学人数的50%，最近又来2名女同学，这时女同学的人数是男同学的62.5%，现在全班有多少人？

The number of female students in class 61 is 50% of the number of male students. Recently, two female students came. At this time, the number of female students is 62.5% of the male students. How many people are there in the class now?

<gadget id="calculator">62.5 / 100</gadget>
<output>0.625</output>
<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">0.625 - (1/2)</gadget>
<output>0.125</output>
<gadget id="calculator">2 / 0.125</gadget>
<output>16</output>
<gadget id="calculator">16 * 0.625</gadget>
<output>10</output>
<gadget id="calculator">10 + 16</gadget>
<output>26</output>
<result>26</result>


甲、乙二人同在西村，某日甲往离西村14千米的东村去，当甲走了2千米的时候，乙发现甲有物件遗忘，立即以每小时8千米的速度追甲，乙追着甲将物件交给甲后即以原速度回西村，当甲到东村的时候，恰好乙也回到西村，问甲每小时行多少千米？

A and B are both in the West Village. One day, A is going to the East Village, which is 14 kilometers away from the West Village. When A walks 2 kilometers, B finds that A has forgotten something, and immediately chases him at a speed of 8 kilometers per hour. A and B chase A and hand over the object to A, and then return to the West Village at the original speed. When A arrives in the East Village, B also returns to the West Village. Ask A how many kilometers per hour?

<gadget id="calculator">14 - 2</gadget>
<output>12</output>
<gadget id="calculator">12 / 2</gadget>
<output>6</output>
<gadget id="calculator">6 + 2</gadget>
<output>8</output>
<gadget id="calculator">2 / 8</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">8 * (1/4)</gadget>
<output>2</output>
<result>6</result>


A、B两地相距48千米，小林骑摩托车从A地到B地每小时行24千米，原路返回每小时行40千米，求摩托车的平均速度．

The distance between A and B is 48 kilometers. Kobayashi travels 24 kilometers per hour from A to B by motorcycle, and travels 40 kilometers per hour on the original road. Find the average speed of the motorcycle.

<gadget id="calculator">48 * 2</gadget>
<output>96</output>
<gadget id="calculator">48 / 24</gadget>
<output>2</output>
<gadget id="calculator">48 / 40</gadget>
<output>6/5 = around 1.2</output>
<gadget id="calculator">2 + (6/5)</gadget>
<output>16/5 = around 3.2</output>
<gadget id="calculator">96 / (16/5)</gadget>
<output>30</output>
<result>30</result>


我们班今年有学生50人，比去年人数增加了10人，我们班今年的学生人数比去年增加了百分之几？

There are 50 students in our class this year, an increase of 10 compared to last year. What percentage is the increase in the number of students in our class this year compared to last year?

<gadget id="calculator">50 - 10</gadget>
<output>40</output>
<gadget id="calculator">10 / 40</gadget>
<output>1/4 = around 0.25</output>
<result>1/4 = around 0.25</result>


一件价格1250元的大衣，现在打八折优惠，如果使用贵宾卡可以再打九五折．妈妈用贵宾卡买这件大衣用了多少元．

A coat priced at 1,250 yuan is now 20% off, and if you use a VIP card, you can get another 5% off. How much did my mother spend on this coat with the VIP card?

<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">95 / 100</gadget>
<output>19/20 = around 0.95</output>
<gadget id="calculator">1_250 * (4/5) * (19/20)</gadget>
<output>950</output>
<result>950</result>


一艘轮船发生漏水事故，船长立即安排两部抽水机同时向外抽水．当时已经漏了500桶水，一部抽水机每分钟抽水18桶，另一部每分钟抽水12桶，经过25分钟把水抽完．问每分钟漏进水多少桶？

water leakage accident occurred on a ship, and the captain immediately arranged for two pumps to pump water out at the same time. At that time, 500 barrels of water had been leaked. One pump pumped 18 barrels per minute, and the other pumped 12 barrels per minute. After 25 minutes, the water was pumped out. Ask how many buckets of water are leaking per minute?

<gadget id="calculator">18 + 12</gadget>
<output>30</output>
<gadget id="calculator">30 * 25</gadget>
<output>750</output>
<gadget id="calculator">750 - 500</gadget>
<output>250</output>
<gadget id="calculator">250 / 25</gadget>
<output>10</output>
<result>10</result>


王阿姨摘西红柿96千克，摘的黄瓜比西红柿的2倍还多25千克，摘的黄瓜有多少千克？

Aunt Wang picked 96 kilograms of tomatoes, and picked 25 kilograms more cucumbers than twice as many tomatoes. How many kilograms of cucumbers did she pick?

<gadget id="calculator">96 * 2</gadget>
<output>192</output>
<gadget id="calculator">192 + 25</gadget>
<output>217</output>
<result>217</result>


五1班有30人，参加数学组的有15人，参加语文组的有12人，两种都没有参加的有8人，两种都参加的有多少人．

There are 30 people in Class 51, 15 people in the mathematics group, 12 people in the Chinese group, 8 people who didn't participate in either, and how many people participated in both.

<gadget id="calculator">30 - 8</gadget>
<output>22</output>
<gadget id="calculator">12 - 22</gadget>
<output>-10</output>
<gadget id="calculator">15 + (-10)</gadget>
<output>5</output>
<result>5</result>


某一天，气象站在1时、7时、13时、19时测得的温度分别是7摄氏度、16摄氏度、25摄氏度、16摄氏度．这一天的平均气温是多少度．

On a certain day, the temperature measured by the weather station at 1:00, 7:00, 13:00, and 19:00 was 7 degrees Celsius, 16 degrees Celsius, 25 degrees Celsius, and 16 degrees Celsius. What is the average temperature of the day.

<gadget id="calculator">7 + 16 + 25 + 16</gadget>
<output>64</output>
<gadget id="calculator">64 / 4</gadget>
<output>16</output>
<result>16</result>


一张梯形纸，上底2.5cm，下底4.5cm，高.2.4cm，现在沿着梯形的对角线剪开，变成了两个三角形．那么大三角形的面积比小三角形的面积多多少cm**2．

piece of trapezoidal paper with an upper base of 2.5cm, a lower base of 4.5cm, and a height of 2.4cm is now cut along the diagonal of the trapezoid to form two triangles. Then the area of the large triangle is larger than the area of the small triangle by how much cm**2.

<gadget id="calculator">2.4 / 2</gadget>
<output>1.2</output>
<gadget id="calculator">4.5 * 1.2</gadget>
<output>5.4</output>
<gadget id="calculator">2.5 * 1.2</gadget>
<output>3</output>
<gadget id="calculator">5.4 - 3</gadget>
<output>2.4</output>
<result>2.4</result>


弟弟的漫画书的本数是哥哥的20%，如果每人再得到18本漫画书，则哥哥的漫画书本数恰好是弟弟的2倍，哥哥原来有多少漫画书？

The number of comic books of the younger brother is 20% of that of the elder brother. If each person gets 18 more comic books, the number of comic books of the elder brother is exactly twice that of the younger brother. How many comic books does the elder brother have?

<gadget id="calculator">36 - 18</gadget>
<output>18</output>
<gadget id="calculator">1 - 0.4</gadget>
<output>0.6</output>
<gadget id="calculator">18 / 0.6</gadget>
<output>30</output>
<result>30</result>


食堂运来370千克大白菜，吃了9天后，还剩下190千克，平均每天吃多少千克？

The cafeteria shipped 370 kilograms of Chinese cabbage. After eating for 9 days, there were still 190 kilograms left. How many kilograms are eaten per day on average?

<gadget id="calculator">370 - 190</gadget>
<output>180</output>
<gadget id="calculator">180 / 9</gadget>
<output>20</output>
<result>20</result>


一堆煤，先用去总数的(2/5)，又用去余下的(4/9)，这时剩下35吨，这堆煤共有多少吨？

For a pile of coal, first use up (2/5) of the total amount, and then use up the rest (4/9). At this time, there are 35 tons left. How many tons are there in this pile of coal?

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>
<gadget id="calculator">(2/5) * (4/9)</gadget>
<output>8/45 = around 0.177778</output>
<gadget id="calculator">(8/45) - (4/9) - (2/5)</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">35 / (1/3)</gadget>
<output>105</output>
<result>105</result>


圆心角是80**0的扇形，有多少条对称轴．

The central angle is a sector of 80**0, how many axes of symmetry are there?

<gadget id="calculator">80 ** 0</gadget>
<output>1</output>
<result>1</result>


把30克盐溶解到270克水中，这种盐水的含盐多少．

Dissolve 30 grams of salt in 270 grams of water, what is the salt content of this brine?

<gadget id="calculator">30 + 270</gadget>
<output>300</output>
<gadget id="calculator">30 / 300</gadget>
<output>1/10 = around 0.1</output>
<result>1/10 = around 0.1</result>


逆向思维与相关联想：2003*□□□□=□99999□(□内只填一个数字)，则四位数□□□□=多少．

Reverse thinking and related associations: 2003*□□□□=□99999□ (fill in only one number in □), then the four-digit number □□□□=how much.

<gadget id="calculator">3_999_991 / 2_003</gadget>
<output>1_997</output>
<result>1_997</result>


某家电商场上月卖出42吋电视机40台，比50吋电视机的多(1/4)，上月这两款电视机一共卖了多少台？

A certain home appliance store sold 40 42-inch TVs last month, which was 1/4 more than 50-inch TVs. How many of these two TVs were sold last month?

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>
<gadget id="calculator">40 / (5/4)</gadget>
<output>32</output>
<gadget id="calculator">32 + 40</gadget>
<output>72</output>
<result>72</result>


已知10个数的平均数是13，如果把其中一个数改为12后，这10个数的平均数变为12．那么，这个被改动的数原来是多少．

It is known that the average of 10 numbers is 13, if one of the numbers is changed to 12, the average of these 10 numbers becomes 12. So, what is the changed number?

<gadget id="calculator">13 - 12</gadget>
<output>1</output>
<gadget id="calculator">1 * 10</gadget>
<output>10</output>
<gadget id="calculator">12 + 10</gadget>
<output>22</output>
<result>22</result>


要使517能同时被2、3整除至少要加上多少

How much must be added to make 517 divisible by 2 and 3 at the same time


在一张9cm**2的正方形硬纸上，剪下一个面积最大的圆，这个圆的面积是多少．

Cut out a circle with the largest area on a piece of 9cm**2 square hard paper. What is the area of this circle?

<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>
<gadget id="calculator">(3/2) ** 2</gadget>
<output>9/4 = around 2.25</output>
<gadget id="calculator">3.14 * (9/4)</gadget>
<output>7.065</output>
<result>7.065</result>


张叔叔家有一个边长为20米的正方形池塘，他计划紧贴着池塘修一条宽2米的小路．这条小路的占地面积是多少？

Uncle Zhang’s house has a square pond with a side length of 20 meters. He plans to build a path with a width of 2 meters close to the pond. What is the footprint of the trail?

<gadget id="calculator">20 + 2 + 2</gadget>
<output>24</output>
<gadget id="calculator">24 * 24</gadget>
<output>576</output>
<gadget id="calculator">20 * 20</gadget>
<output>400</output>
<gadget id="calculator">576 - 400</gadget>
<output>176</output>
<result>176</result>


果园里栽了98棵桃树，还栽了7行杏树，桃树和杏树一共有182棵，平均每行杏树有多少棵？

There are 98 peach trees and 7 rows of apricot trees in the orchard. There are 182 peach and apricot trees in total. How many apricot trees are there on average in each row?

<gadget id="calculator">182 - 98</gadget>
<output>84</output>
<gadget id="calculator">84 / 7</gadget>
<output>12</output>
<result>12</result>


What is the number 20 more than (2/3) of 144?

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>
<gadget id="calculator">144 * (2/3)</gadget>
<output>96</output>
<gadget id="calculator">96 + 20</gadget>
<output>116</output>
<result>116</result>


小强装修房屋，用面积9平方分米的方砖160块正好铺满书房的地面，如果改用边长4分米的方砖，需要多少块？

Xiaoqiang used 160 square bricks with an area of 9 square decimeters to just cover the floor of the study when decorating his house. If he used square bricks with a side length of 4 decimeters instead, how many bricks would he need?

<gadget id="calculator">9 * 160</gadget>
<output>1_440</output>
<gadget id="calculator">4 * 4</gadget>
<output>16</output>
<gadget id="calculator">1_440 / 16</gadget>
<output>90</output>
<result>90</result>


玲玲有零花钱21元，卖废纸又收入29.4元，用这些钱刚好可以买6本《动手做》，每本《动手做》多少钱？

Lingling has pocket money of 21 yuan, and earns 29.4 yuan from selling waste paper. With this money, she can just buy 6 copies of "Hands-to-Do", how much is each "Hand-to-Do"?

<gadget id="calculator">21 + 29.4</gadget>
<output>50.4</output>
<gadget id="calculator">50.4 / 6</gadget>
<output>8.4</output>
<result>8.4</result>


学校组织学生参加植树活动，男生有60人，女生有48人．编成若干小组，要求每个小组的男生人数相等，女生人数也相等，最多可分成多少个组？

The school organized students to participate in tree planting activities. There were 60 boys and 48 girls. Form several groups and require that each group has an equal number of boys and an equal number of girls. How many groups can it be divided into?

<gadget id="calculator">2 * 2 * 3</gadget>
<output>12</output>
<result>12</result>


从东台到南京的路程有260千米，一辆汽车从东台开往南京，已经行了78千米，行了全程的几分之几？

The distance from Dongtai to Nanjing is 260 kilometers. A car has traveled 78 kilometers from Dongtai to Nanjing. What fraction of the journey has been made?

<gadget id="calculator">78 / 260</gadget>
<output>3/10 = around 0.3</output>
<result>3/10 = around 0.3</result>


一种净含量1升的果汁，喝去600毫升后，还剩多少毫升．

A fruit juice with a net content of 1 liter, how many milliliters are left after drinking 600 milliliters.

<gadget id="calculator">1 * 1_000</gadget>
<output>1_000</output>
<gadget id="calculator">1_000 - 600</gadget>
<output>400</output>
<result>400</result>


把甲的(1/9)给乙，则甲乙相等．原来甲比乙多多少

Give A's (1/9) to B, then A and B are equal. How much more A than B

<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>
<gadget id="calculator">1 - (1/9) - (1/9)</gadget>
<output>7/9 = around 0.777778</output>
<gadget id="calculator">1 - (7/9)</gadget>
<output>2/9 = around 0.222222</output>
<gadget id="calculator">(2/9) / (7/9)</gadget>
<output>2/7 = around 0.285714</output>
<result>2/7 = around 0.285714</result>


一根绳子长为(7/8)m，第一次用去(1/4)m，第二次用去余下的(2/3)，还剩多少m．

A rope is (7/8)m long, (1/4)m is used for the first time, and the remaining (2/3) is used for the second time, how much m is left?

<gadget id="calculator">7 / 8</gadget>
<output>7/8 = around 0.875</output>
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">(7/8) - (1/4)</gadget>
<output>5/8 = around 0.625</output>
<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">(5/8) * (1/3)</gadget>
<output>5/24 = around 0.208333</output>
<result>5/24 = around 0.208333</result>


果园里有595棵苹果树，是桃树的7倍．苹果树比桃树多多少棵？

There are 595 apple trees in the orchard, 7 times that of peach trees. How many more apple trees than peach trees?

<gadget id="calculator">595 / 7</gadget>
<output>85</output>
<gadget id="calculator">595 - 85</gadget>
<output>510</output>
<result>510</result>


一个圆柱体，如果高减少1厘米，它的表面积就减少25.12平方厘米，这个圆柱的底面积是多少．

If the height of a cylinder is reduced by 1 cm, its surface area will be reduced by 25.12 square centimeters. What is the area of the base of the cylinder?

<gadget id="calculator">25.12 / 1 / 3.14 / 2</gadget>
<output>4</output>
<gadget id="calculator">3.14 * 4 * 4</gadget>
<output>50.24</output>
<result>50.24</result>


除数是24，商是25，余数是19，被除数是多少．

The divisor is 24, the quotient is 25, and the remainder is 19. What is the dividend?

<gadget id="calculator">24 * 25</gadget>
<output>600</output>
<gadget id="calculator">600 + 19</gadget>
<output>619</output>
<result>619</result>


在一个长8cm，宽6cm的长方形里画一个最大的圆，这个圆的面积是多少．

Draw the largest circle in a rectangle with a length of 8 cm and a width of 6 cm. What is the area of this circle?

<gadget id="calculator">6 / 2</gadget>
<output>3</output>
<gadget id="calculator">3 ** 2</gadget>
<output>9</output>
<gadget id="calculator">3.14 * 9</gadget>
<output>28.26</output>
<result>28.26</result>


斯太尔大货车从甲地和夏利牌小轿车从乙地同时出发相向而行，4小时相遇，这时小轿车离甲地有240千米，大货车离乙地还有480千米，照这样的速度，小轿车行完全程用多少小时？

The Steyr truck starts from A and the Xiali car starts from B at the same time, and they meet each other in 4 hours. At this time, the car is 240 kilometers away from A, and the big truck is 480 kilometers away from B. At this speed, how many hours does it take for the car to complete the journey?

<gadget id="calculator">240 + 480</gadget>
<output>720</output>
<gadget id="calculator">480 / 4</gadget>
<output>120</output>
<gadget id="calculator">720 / 120</gadget>
<output>6</output>
<result>6</result>


百姓超市进了一种毛巾共50箱，批发价每箱615元，零售价每块毛巾6.8元，全部卖出可得毛利多少元？(一箱内有100块毛巾)

The People’s Supermarket has 50 boxes of a certain type of towel, the wholesale price is 615 yuan per box, and the retail price is 6.8 yuan per towel. How much gross profit can you get if you sell all of them? (There are 100 towels in a box)

<gadget id="calculator">615 / 100</gadget>
<output>123/20 = around 6.15</output>
<gadget id="calculator">6.8 - (123/20)</gadget>
<output>0.65</output>
<gadget id="calculator">0.65 * 100 * 50</gadget>
<output>3_250</output>
<result>3_250</result>


在一道有余数的除法算式里，除数是6，余数最大是多少．

In a division formula with a remainder, the divisor is 6, what is the maximum remainder.

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


学校扩建一个长方形花圃，把它的长增加5米，宽增加10米，就正好成为一个正方形，现在正方形花圃的面积比原来长方形的面积增加了400平方米．现在这个正方形花圃的面积是多少平方米？

The school expands a rectangular flowerbed by increasing its length by 5 meters and its width by 10 meters to form a square. Now the area of the square flowerbed is 400 square meters larger than the original rectangle. What is the area of the square garden now?

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


今年是小华过的最后一个儿童节，妈妈给小华买了一个底面直径为6厘米，高为4厘米的陀螺装在一个长方体的盒子里，这个盒子的容积至少是多少．

This year is Xiaohua's last Children's Day. My mother bought Xiaohua a spinning top with a base diameter of 6 cm and a height of 4 cm. Put it in a cuboid box. What is the minimum volume of the box?

<gadget id="calculator">6 * 6 * 4</gadget>
<output>144</output>
<result>144</result>


<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>
<result>3/2 = around 1.5</result>


某商店出售啤酒，规定每5个空啤酒瓶能换1瓶啤酒．张叔叔家买了80瓶啤酒，喝完后再按规定用空啤酒瓶去换啤酒，那么他们家前后共能喝到多少瓶啤酒？

store sells beer, and it is stipulated that every 5 empty beer bottles can be exchanged for 1 bottle of beer. Uncle Zhang’s family bought 80 bottles of beer, and after drinking them, they exchanged empty beer bottles for beer according to regulations. How many bottles of beer can their family drink in total?

<gadget id="calculator">80 + 16 + 3 + 1</gadget>
<output>100</output>
<result>100</result>


自来水公司为鼓励节约用水，采取按月分段计费的方法收取水费．12吨以内的每吨2.9元；超过12吨的部分，每吨3.6元．王跃家上个月的用水量是15吨，应缴水费多少元？

In order to encourage water conservation, the water supply company adopts the method of monthly segment billing to collect water fees. 2.9 yuan per ton within 12 tons; 3.6 yuan per ton for the part exceeding 12 tons. The water consumption of Wang Yue’s house last month was 15 tons. How much should I pay for water?

<gadget id="calculator">12 * 2.9</gadget>
<output>34.8</output>
<gadget id="calculator">15 - 12</gadget>
<output>3</output>
<gadget id="calculator">3 * 3.6</gadget>
<output>10.8</output>
<gadget id="calculator">34.8 + 10.8</gadget>
<output>45.6</output>
<result>45.6</result>


商店按批发价买进一批小皮球，每个0.35元，零售价每个0.4元．当卖到剩下20个时，计算卖得的钱，除去全部买进的成本外已获利10元、商店买进小皮球多少个？算式是多少

The store bought a batch of small balls at the wholesale price of 0.35 yuan each, and the retail price of 0.4 yuan each. When the remaining 20 are sold, calculate the money from the sale. Excluding the cost of all the purchases, you have made a profit of 10 yuan. How many small balls did the store buy? what is the formula

<gadget id="calculator">0.4 - 0.35</gadget>
<output>0.05</output>
<gadget id="calculator">10 / 0.05</gadget>
<output>200</output>
<gadget id="calculator">200 + 20</gadget>
<output>220</output>
<result>220</result>


一根绳子长26.12米，现在一棵大树上绕4周还多1米，求这棵大树的直径．

A rope is 26.12 meters long. Now a big tree is wrapped around 4 times and there is 1 meter more. Find the diameter of the big tree.

<gadget id="calculator">26.12 - 1</gadget>
<output>25.12</output>
<gadget id="calculator">25.12 / 4 / 3.14</gadget>
<output>2</output>
<result>2</result>


姨妈从国外邮回一套纪念邮票，标价9.00美元，如果1美元兑换6.12元人民币，这套纪念邮票折合人民币多少元钱？

My aunt mailed back a set of commemorative stamps from abroad, with a price tag of 9.00 US dollars. If 1 US dollar is exchanged for 6.12 yuan, how much is this set of commemorative stamps equivalent to RMB?

<gadget id="calculator">6.12 * 9</gadget>
<output>55.08</output>
<result>55.08</result>


一条公路，每天修的同样多，一星期修完，3天修了这条公路的多少

A road, the same amount is repaired every day, and if it is completed in a week, how much is the road repaired in 3 days?

<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>
<gadget id="calculator">(1/7) * 3</gadget>
<output>3/7 = around 0.428571</output>
<result>3/7 = around 0.428571</result>


正方体的棱长缩小3倍，他的体积就缩小多少倍．

If the side length of a cube is reduced by 3 times, its volume will be reduced by that many times.

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


两栋楼之间砌一道长30米，厚32厘米，高3.5米的砖墙．每立方米要用砖500块，一共需要多少块砖？

A brick wall 30 meters long, 32 centimeters thick and 3.5 meters high is built between the two buildings. 500 bricks are used per cubic meter, how many bricks are needed in total?

<gadget id="calculator">32 / 100</gadget>
<output>8/25 = around 0.32</output>
<gadget id="calculator">30 * (8/25) * 3.5 * 500</gadget>
<output>16_800</output>
<result>16_800</result>


甲从A地出发行了一段时间后，乙、丙、丁三人才同时从A地出发沿着同一条路去追甲，乙、丙、丁三人分别用了3小时、5小时、6小时才追上甲，已知乙每小时行18千米，丙每小时行16千米，那么丁每小时行多少千米．

After A set off from A for a period of time, B, C, and D set off from A at the same time to chase A along the same road. B, C, and D spent 3 hours, 5 hours, and 6 hours respectively Only after catching up with A, it is known that B travels 18 kilometers per hour and C travels 16 kilometers per hour, so how many kilometers per hour does D travel?

<gadget id="calculator">80 - 54</gadget>
<output>26</output>
<gadget id="calculator">26 / 2</gadget>
<output>13</output>
<gadget id="calculator">18 - 13</gadget>
<output>5</output>
<gadget id="calculator">3 * 5</gadget>
<output>15</output>
<gadget id="calculator">13 * 6</gadget>
<output>78</output>
<gadget id="calculator">15 + 78</gadget>
<output>93</output>
<gadget id="calculator">93 / 6</gadget>
<output>31/2 = around 15.5</output>
<result>31/2 = around 15.5</result>


一道数学题，全班70人做对，10人做错，这道题的正确率是多少．

A math problem, 70 people in the class get it right and 10 people get it wrong, what is the correct rate of this problem?

<gadget id="calculator">70 + 10</gadget>
<output>80</output>
<gadget id="calculator">70 / 80</gadget>
<output>7/8 = around 0.875</output>
<gadget id="calculator">100 / 100</gadget>
<output>1</output>
<gadget id="calculator">(7/8) * 1</gadget>
<output>7/8 = around 0.875</output>
<result>7/8 = around 0.875</result>


公鸡比母鸡少36只，母鸡有62只．公鸡和母鸡一共有多少只？

There are 36 fewer roosters than hens, and 62 hens. How many roosters and hens are there altogether?

<gadget id="calculator">62 - 36</gadget>
<output>26</output>
<gadget id="calculator">26 + 62</gadget>
<output>88</output>
<result>88</result>


从1开始依次将自然数写出来：123456789101112131415…从左向右数，数到第12个数字起将开始第一次出现三个连续的1，数到第多少个数字起将开始第一次出现五个连续的2．

Write the natural numbers sequentially starting from 1: 123456789101112131415... Counting from left to right, three consecutive 1s will appear for the first time when counting to the 12th number, and five will appear for the first time when counting to the number 12 a continuous 2．

<gadget id="calculator">1 * 9</gadget>
<output>9</output>
<gadget id="calculator">2 * 90</gadget>
<output>180</output>
<gadget id="calculator">3 * 122</gadget>
<output>366</output>
<gadget id="calculator">9 + 180 + 366 + 1</gadget>
<output>556</output>
<result>556</result>


甲数是乙数的(3/5)，则甲数比乙数少多少．

If the number A is (3/5) of the number B, then the number A is less than the number B.

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>
<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>
<result>2/5 = around 0.4</result>


甲车间人数是甲、乙两车间总人数的(7/12)，现在从甲车间调20人到乙车间，这时甲、乙两车间的人数之比是5：7，甲车间原有多少人？

The number of people in workshop A is the total number of people in workshops A and B (7/12). Now 20 people are transferred from workshop A to workshop B. At this time, the ratio of the number of people in workshops A and B is 5:7. What is the original number of workshops in A? people?

<gadget id="calculator">7 / 12</gadget>
<output>7/12 = around 0.583333</output>
<gadget id="calculator">5 + 7</gadget>
<output>12</output>
<gadget id="calculator">5 / 12</gadget>
<output>5/12 = around 0.416667</output>
<gadget id="calculator">(7/12) - (5/12)</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">20 / (1/6)</gadget>
<output>120</output>
<gadget id="calculator">120 * (7/12)</gadget>
<output>70</output>
<result>70</result>


某剧场能坐870人，一场电影的票价是8元，这场电影的票房收入是多少元？

A theater can seat 870 people, and the ticket price of a movie is 8 yuan. How much is the box office revenue of this movie?

<gadget id="calculator">8 * 870</gadget>
<output>6_960</output>
<result>6_960</result>


菜市场运来3车油菜，每车装138千克，又运来263千克菠菜，菜市场一共运来油菜和菠菜多少千克？

The vegetable market shipped 3 trucks of rapeseed, each containing 138 kilograms, and 263 kilograms of spinach. How many kilograms of rapeseed and spinach were shipped to the vegetable market?


一个袋子中装有若干个红球和白球，其中红球占90%，如果从袋子中取出10个红球和10个白球后，剩下的球中红球占95%，求原来袋子中装有多少个红球．

There are several red balls and white balls in a bag, of which red balls account for 90%. If 10 red balls and 10 white balls are taken out of the bag, red balls account for 95% of the remaining balls. Find the original bag. How many red balls are there.

<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>
<gadget id="calculator">180 * (9/10)</gadget>
<output>162</output>
<result>162</result>


甲乙两个仓库，甲仓存粮30吨，如果从甲仓中取出(1/10)放入乙仓，则两仓存粮数相等．两仓一共存粮多少千克？

There are two warehouses, A and B, and A warehouse stores 30 tons of grain. If (1/10) is taken out from A warehouse and put into B warehouse, the amount of grain stored in the two warehouses is equal. How many kilograms of grain are stored in the two warehouses?

<gadget id="calculator">1 / 10</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">30 * (9/10) * 2 * 1_000</gadget>
<output>54_000</output>
<result>54_000</result>


某校暑假组织旅游，去北京旅游的占总人数的(1/2)，去张家界旅游的占总人数的(1/3)，剩下的去海南旅游．去海南旅游的占总人数的几分之几？

A certain school organizes summer vacation trips, the total number of people who travel to Beijing (1/2), those who go to Zhangjiajie (1/3), and the rest go to Hainan. What percentage of the total number of tourists go to Hainan?

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">(1/2) + (1/3)</gadget>
<output>5/6 = around 0.833333</output>
<gadget id="calculator">1 - (5/6)</gadget>
<output>1/6 = around 0.166667</output>
<result>1/6 = around 0.166667</result>


小英在计算一道乘法习题时，错把乘数个位上1抄成7，计算结果为918，比正确结果多204，乘数是多少？

When Xiaoying was calculating a multiplication exercise, she mistakenly copied 1 into 7, and the calculation result was 918, which is 204 more than the correct result. What is the multiplier?

<gadget id="calculator">918 - 204</gadget>
<output>714</output>
<gadget id="calculator">7 - 1</gadget>
<output>6</output>
<gadget id="calculator">204 / 6</gadget>
<output>34</output>
<gadget id="calculator">714 / 34</gadget>
<output>21</output>
<result>21</result>


一个长方形长14厘米，比宽多6厘米，宽是多少厘米．

The length of a rectangle is 14 cm and its width is 6 cm, what is the width in cm?

<gadget id="calculator">14 - 6</gadget>
<output>8</output>
<result>8</result>


新闻联播从晚上7：00开始，到7：30结束，共播出多少分钟．

The news broadcast starts at 7:00 p.m. and ends at 7:30 p.m. How many minutes is it broadcasted in total?


东东家买了2张书桌和4把椅子，共花去800元．每把椅子80元，每张书桌多少元？

Dongdong's family bought 2 desks and 4 chairs for a total of 800 yuan. 80 yuan per chair, how much is each desk?

<gadget id="calculator">80 * 4</gadget>
<output>320</output>
<gadget id="calculator">800 - 320</gadget>
<output>480</output>
<gadget id="calculator">480 / 2</gadget>
<output>240</output>
<result>240</result>


小方沿40米的直路走了三次，分别是101步、101步、98步．他平均每步走多少米．

Xiao Fang walked three times along the 40-meter straight road, which were 101 steps, 101 steps, and 98 steps. How many meters does he walk on average per step?

<gadget id="calculator">101 + 101 + 98</gadget>
<output>300</output>
<gadget id="calculator">3 / 300</gadget>
<output>1/100 = around 0.01</output>
<gadget id="calculator">40 * (1/100)</gadget>
<output>2/5 = around 0.4</output>
<result>2/5 = around 0.4</result>


修一段长324米的路，前8小时每小时修30米，如果剩下的每小时12米，修完还需要多少小时？

To build a 324-meter-long road, 30 meters per hour in the first 8 hours, if the remaining 12 meters per hour, how many hours will it take to complete the repair?

<gadget id="calculator">30 * 8</gadget>
<output>240</output>
<gadget id="calculator">324 - 240</gadget>
<output>84</output>
<gadget id="calculator">84 / 12</gadget>
<output>7</output>
<result>7</result>


一个长方体的长5米，宽3米，高4米，它的体积是多少立方米．

A cuboid is 5 meters long, 3 meters wide, and 4 meters high, what is its volume in cubic meters?

<gadget id="calculator">5 * 3 * 4</gadget>
<output>60</output>
<result>60</result>


A's number is 20, B's number is 15. (20-15)/20=5/20=25% This formula indicates how much less the number B is than the number A

<gadget id="calculator">20 - 15</gadget>
<output>5</output>
<gadget id="calculator">5 / 20</gadget>
<output>1/4 = around 0.25</output>
<result>1/4 = around 0.25</result>


用一个平底锅煎鱼，每次只能煎2条，煎一条鱼需要2分钟(正、反面各需1分钟)．如果要煎5条鱼，最少需要多少分钟．

Use a pan to fry fish, only 2 fish can be fried at a time, and it takes 2 minutes to fry a fish (1 minute for the front and 1 minute for the back). If you want to fry 5 fish, what is the minimum time required?

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


甲仓库现有大米2584千克，乙仓库的大米比甲仓库多296千克，丙仓库的大米比乙仓库多104千克，丙仓库有大米多少千克．

Warehouse A currently has 2584 kilograms of rice, warehouse B has 296 kilograms more rice than warehouse A, warehouse C has 104 kilograms more rice than warehouse B, how many kilograms of rice does warehouse C have.

<gadget id="calculator">2_584 + 296 + 104</gadget>
<output>2_984</output>
<result>2_984</result>


小丽的妈妈买了3000元的国库券(免缴利息税)，定期3年，如果年利率是6.15%．到期时能获利息多少元？

Xiaoli's mother bought a treasury bond of 3,000 yuan (exempt from interest tax), fixed for 3 years, if the annual interest rate is 6.15%. How much interest can I earn at maturity?

<gadget id="calculator">6.15 / 100</gadget>
<output>0.0615</output>
<gadget id="calculator">3_000 * 0.0615 * 3</gadget>
<output>553.5</output>
<result>553.5</result>


一个房间的地面，用面积为9平方分米的方砖来铺，要960块；如果改用边长为4分米的方砖来铺，需要多少块？

If the floor of a room is paved with square bricks with an area of 9 decimeters, it costs 960 pieces; if it is paved with square bricks with a side length of 4 decimeters, how many pieces are needed?

<gadget id="calculator">9 * 960</gadget>
<output>8_640</output>
<gadget id="calculator">4 * 4</gadget>
<output>16</output>
<gadget id="calculator">8_640 / 16</gadget>
<output>540</output>
<result>540</result>


修一段公路原计划每天修60米，15天可以修完．实际每天修75米，实际几天就完成任务？

The original plan to build a section of road is 60 meters per day, which can be completed in 15 days. Actually repair 75 meters a day, how many days to complete the task?

<gadget id="calculator">15 / 75</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">60 * (1/5)</gadget>
<output>12</output>
<result>12</result>


王大伯种5棵苹果树共收苹果280千克，每7千克装一筐，需要多少个筐．

Uncle Wang planted 5 apple trees and harvested 280 kilograms of apples. How many baskets are needed for every 7 kilograms of apples to be packed in a basket?

<gadget id="calculator">280 / 7</gadget>
<output>40</output>
<result>40</result>


要剪一个面积是9.42平方厘米的圆形纸片，至少需要一张多少平方厘米的正方形纸片．(π取3.14)

To cut a circular piece of paper with an area of 9.42 square centimeters, at least one square piece of paper of how many square centimeters is needed. (π takes 3.14)

<gadget id="calculator">9.42 / 3.14</gadget>
<output>3</output>
<gadget id="calculator">3 * 4</gadget>
<output>12</output>
<result>12</result>


修一条公路，已经修好了16.5千米，剩下是已修的1.6倍，这条公路全长多少千米？

To build a road, 16.5 kilometers have been repaired, and the rest is 1.6 times the length of the repaired road. How many kilometers is the total length of this road?

<gadget id="calculator">1.6 + 1</gadget>
<output>2.6</output>
<gadget id="calculator">16.5 * 2.6</gadget>
<output>42.9</output>
<result>42.9</result>


有一个自然数除以33余12，除以43余7．那么这个自然数最小的是多少．

When a natural number is divided by 33, the remainder is 12, and when divided by 43, the remainder is 7. So what is the smallest natural number?

<gadget id="calculator">33 * 5</gadget>
<output>165</output>
<gadget id="calculator">165 / 10</gadget>
<output>33/2 = around 16.5</output>
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">(33/2) + (1/2)</gadget>
<output>17</output>
<gadget id="calculator">43 * 17</gadget>
<output>731</output>
<gadget id="calculator">731 + 7</gadget>
<output>738</output>
<result>738</result>


水果店运来苹果和梨共540千克，苹果和梨重量的比是12：15．运来梨多少千克？

The fruit shop shipped 540 kilograms of apples and pears, and the weight ratio of apples to pears was 12:15. How many kilograms of pears are shipped?

<gadget id="calculator">12 + 15</gadget>
<output>27</output>
<gadget id="calculator">15 / 27</gadget>
<output>5/9 = around 0.555556</output>
<gadget id="calculator">540 * (5/9)</gadget>
<output>300</output>
<result>300</result>


职工技术学校原有科技书、文艺书630本，其中科技书占20%，后来又买进一些科技书，这时科技书占总数的30%，又买来科技书多少本？(列式解答)

There were 630 scientific and literary books in the staff technical school, of which scientific books accounted for 20%. Later, some scientific books were bought. At this time, scientific books accounted for 30% of the total. How many scientific books were bought? (column solution)

<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">30 / 100</gadget>
<output>3/10 = around 0.3</output>
<gadget id="calculator">1 - (3/10)</gadget>
<output>7/10 = around 0.7</output>
<gadget id="calculator">(4/5) / (7/10)</gadget>
<output>8/7 = around 1.142857</output>
<gadget id="calculator">630 * (8/7)</gadget>
<output>720</output>
<gadget id="calculator">720 - 630</gadget>
<output>90</output>
<result>90</result>


学校田径队有42名运动员，其中女运动员20名．每名运动员买一套价格为68元运动服，一共要用多少钱．

The school track and field team has 42 athletes, including 20 female athletes. How much does it cost each athlete to buy a set of sportswear at a price of 68 yuan?

<gadget id="calculator">68 * 42</gadget>
<output>2_856</output>
<result>2_856</result>


两个工程队共同开凿一条675m长的隧道．各从一端相向施工，25天打通，甲队每天开凿13.6m，乙队每天开凿多少m．

Two engineering teams jointly excavated a 675m long tunnel. Work from one end to the other, and get through in 25 days. Team A excavates 13.6m per day, and how much m does Team B excavate per day?

<gadget id="calculator">675 / 25</gadget>
<output>27</output>
<gadget id="calculator">27 - 13.6</gadget>
<output>13.4</output>
<result>13.4</result>


从甲地到乙地，货车需要行驶90分钟，客车需要行驶80分钟．已知货车每小时行(4/3)千米，客车每分钟行多少千米？

From A to B, it takes 90 minutes for a truck and 80 minutes for a bus. It is known that the truck travels (4/3) kilometers per hour, how many kilometers per minute does the passenger car travel?

<gadget id="calculator">4 / 3</gadget>
<output>4/3 = around 1.333333</output>
<gadget id="calculator">90 / 80</gadget>
<output>9/8 = around 1.125</output>
<gadget id="calculator">(4/3) * (9/8)</gadget>
<output>3/2 = around 1.5</output>
<result>3/2 = around 1.5</result>


新图书馆开业了！小红每隔3天去一次，小林每隔4天去一次．请问小红和小林第一次相遇后，至少经过多少天第二次在图书馆相遇？

The new library is open! Xiaohong goes there every 3 days, and Xiaolin goes there every 4 days. May I ask how many days have passed since Xiaohong and Xiaolin met for the first time in the library for the second time?

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


小明3天读完了一本140页的故事书．第一天读了全书的(2/7)，第二天读了全书的(3/7)．你知道他第三天读了全书的几分之几吗？

Xiao Ming finished reading a 140-page story book in 3 days. I read the whole book (2/7) on the first day and (3/7) the whole book on the second day. Do you know what fraction of the book he read on the third day?

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


长方形游泳池，周长是180米，宽是30米，长是多少．

A rectangular swimming pool has a perimeter of 180 meters and a width of 30 meters. What is the length?

<gadget id="calculator">180 / 2</gadget>
<output>90</output>
<gadget id="calculator">90 - 30</gadget>
<output>60</output>
<result>60</result>


分母是20，分子是质数的真分数共有多少个．

How many real fractions have the denominator 20 and the numerator is a prime number?


妈妈有一张周长是48厘米的正方形彩纸，想给小红剪半径是1.5厘米的圆形纸片，最多可以剪几个？

Mom has a square colored paper with a circumference of 48 cm. She wants to cut a circular piece of paper with a radius of 1.5 cm for Xiaohong. How many can she cut at most?

<gadget id="calculator">48 / 4</gadget>
<output>12</output>
<gadget id="calculator">1.5 * 2</gadget>
<output>3</output>
<gadget id="calculator">12 / 3</gadget>
<output>4</output>
<gadget id="calculator">4 * 4</gadget>
<output>16</output>
<result>16</result>


修一条路，已修的比总数的35%多50米，未修的比总数的60%多40米，这条路有多少米长．

To build a road, the completed road is 50 meters longer than 35% of the total number, and the unrepaired road is 40 meters longer than 60% of the total number. How long is this road in meters?

<gadget id="calculator">50 + 40</gadget>
<output>90</output>
<gadget id="calculator">35 / 100</gadget>
<output>7/20 = around 0.35</output>
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>
<gadget id="calculator">1 - (7/20) - (3/5)</gadget>
<output>1/20 = around 0.05</output>
<gadget id="calculator">90 / (1/20)</gadget>
<output>1_800</output>
<result>1_800</result>


妈妈买笔花了28元，还剩下72元．妈妈带了多少元．

Mom spent 28 yuan on the pen, and there was 72 yuan left. How much money did my mother bring?

<gadget id="calculator">28 + 72</gadget>
<output>100</output>
<result>100</result>


水果店运来54筐水果，里面有45筐苹果，其余的是梨，苹果的筐数是梨的多少倍．

The fruit shop brought 54 baskets of fruit, including 45 baskets of apples, and the rest were pears. The number of baskets of apples is how many times that of pears.

<gadget id="calculator">54 - 45</gadget>
<output>9</output>
<gadget id="calculator">45 / 9</gadget>
<output>5</output>
<result>5</result>


王强在书店买了两本书，一本28.4元，另一本39.8元．他付元100，应找回多少元？

Wang Qiang bought two books in the bookstore, one for 28.4 yuan and the other for 39.8 yuan. He paid 100 yuan, how much should he get back?

<gadget id="calculator">28.4 + 39.8</gadget>
<output>68.2</output>
<gadget id="calculator">100 - 68.2</gadget>
<output>31.8</output>
<result>31.8</result>


2、4、6、8、…98这49个偶数各位数的和是多少．

What is the sum of the 49 even digits of 2, 4, 6, 8, ... 98?

<gadget id="calculator">2 + 4 + 6 + 8</gadget>
<output>20</output>
<gadget id="calculator">1 + 1 + 1 + 1 + 1</gadget>
<output>5</output>
<gadget id="calculator">5 + 20</gadget>
<output>25</output>
<gadget id="calculator">10 + 20</gadget>
<output>30</output>
<gadget id="calculator">15 + 20</gadget>
<output>35</output>
<gadget id="calculator">20 + 20</gadget>
<output>40</output>
<gadget id="calculator">25 + 20</gadget>
<output>45</output>
<gadget id="calculator">30 + 20</gadget>
<output>50</output>
<gadget id="calculator">35 + 20</gadget>
<output>55</output>
<gadget id="calculator">40 + 20</gadget>
<output>60</output>
<gadget id="calculator">45 + 20</gadget>
<output>65</output>
<gadget id="calculator">20 + 25 + 30 + 35 + 40 + 45 + 50 + 55 + 60 + 65</gadget>
<output>425</output>
<result>425</result>


两个完全一样的梯形拼成一个平行四边形，平行四边形的面积是36.8m**2，那么一个梯形的面积是多少m**2．

Two identical trapezoids are put together to form a parallelogram, and the area of the parallelogram is 36.8m**2, so what is the area of a trapezoid in m**2?

<gadget id="calculator">36.8 / 2</gadget>
<output>18.4</output>
<result>18.4</result>


王老师到文具店里去买12个书包和相同数量的铅笔盒，每个书包58元，每个铅笔盒22元，一共要付多少钱？

Mr. Wang goes to a stationery store to buy 12 schoolbags and the same number of pencil cases. Each schoolbag is 58 yuan, and each pencil case is 22 yuan. How much will he pay in total?

<gadget id="calculator">58 * 12</gadget>
<output>696</output>
<gadget id="calculator">22 * 12</gadget>
<output>264</output>
<gadget id="calculator">696 + 264</gadget>
<output>960</output>
<result>960</result>


一个数的(2/7)等于30的(2/3)，这个数是多少？(用方程解)

(2/7) of a number is equal to (2/3) of 30. What is this number? (solution by equation)

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>
<gadget id="calculator">30 * (2/3)</gadget>
<output>20</output>
<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>
<gadget id="calculator">20 / (2/7)</gadget>
<output>70</output>
<result>70</result>


小熊现在上学了，在上学的路上它已经走了155米，离学校还有935米，小熊每天上学要走多少米？

The little bear is going to school now. He has already walked 155 meters on the way to school, and there are still 935 meters away from the school. How many meters does the little bear walk to school every day?

<gadget id="calculator">155 + 935</gadget>
<output>1_090</output>
<result>1_090</result>


一桶油，如果倒出3.2千克，还剩(2/3)，如果要剩下(3/4)，应倒出多少千克？

A barrel of oil, if 3.2 kilograms are poured out, there is still (2/3), if (3/4) is left, how many kilograms should be poured out?

<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">3.2 / (1/3)</gadget>
<output>9.6</output>
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">1 - (3/4)</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">9.6 * (1/4)</gadget>
<output>2.4</output>
<result>2.4</result>


果品公司上午购进苹果25吨、运走9吨，剩下的用一辆载重4吨的卡车来运，几次才能运完？

The fruit company bought 25 tons of apples in the morning, shipped 9 tons away, and used a 4-ton truck to transport the rest. How many times did it take to finish the shipment?

<gadget id="calculator">25 - 9</gadget>
<output>16</output>
<gadget id="calculator">16 / 4</gadget>
<output>4</output>
<result>4</result>


依法纳税是每个公民的义务．张老师上个月的工资总额是3900元，按照税法的有关规定，超过3000元的部分要缴纳5%的个人所得税，那么张老师上个月应缴纳个人所得税多少元？

It is the duty of every citizen to pay taxes according to law. Mr. Zhang’s total salary last month was 3,900 yuan. According to the relevant provisions of the tax law, the part exceeding 3,000 yuan is subject to 5% personal income tax. So how much personal income tax should Mr. Zhang pay last month?

<gadget id="calculator">3_900 - 3_000</gadget>
<output>900</output>
<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>
<gadget id="calculator">900 * (1/20)</gadget>
<output>45</output>
<result>45</result>


甲每小时加工54个零件，乙每小时加工45个零件，甲、乙共同加工6小时，这批零件共有多少个？

processes 54 parts per hour, B processes 45 parts per hour, and A and B work together for 6 hours. How many parts are there in total?

<gadget id="calculator">54 + 45</gadget>
<output>99</output>
<gadget id="calculator">99 * 6</gadget>
<output>594</output>
<result>594</result>


给(5/(a))的分母乘3，要使分数的大小不变，分子应加上多少

Multiply the denominator of (5/(a)) by 3, how much should be added to the numerator to keep the size of the fraction constant

<gadget id="calculator">5 * 3</gadget>
<output>15</output>
<gadget id="calculator">15 - 5</gadget>
<output>10</output>
<result>10</result>


修一条公路，第一天修了全长20%，第二天修了全长的35%，两天一共修了5500米，这条公路一共有多长？

To build a road, 20% of the total length was repaired on the first day, and 35% of the total length was repaired on the second day. A total of 5,500 meters was repaired in two days. How long is this road in total?

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">35 / 100</gadget>
<output>7/20 = around 0.35</output>
<gadget id="calculator">(1/5) + (7/20)</gadget>
<output>11/20 = around 0.55</output>
<gadget id="calculator">5_500 / (11/20)</gadget>
<output>10_000</output>
<result>10_000</result>


一个四位数，能被45整除，千位数字与个位数字之积等于20，百位数字与十位数字组成的两位数是9的4倍，这个四位数是多少．

A four-digit number is divisible by 45. The product of the thousands digit and the ones digit is equal to 20. The two-digit number composed of the hundreds digit and the tens digit is four times 9. What is the four-digit number?


有两根绳子，一根长45米，另一根长30米．现在要将这两根绳子都剪成同样长的小段，且没有剩余，每段最长是多少米？

There are two ropes, one is 45 meters long and the other is 30 meters long. Now these two ropes are to be cut into small pieces of the same length, and there is no surplus. What is the longest length of each piece?

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


把甲筐苹果的(1/5)放入乙筐，这时，两筐苹果的重量相等，原来乙筐水果是甲筐水果的多少．

Put (1/5) of the apples in basket A into basket B. At this time, the weights of the apples in the two baskets are equal. It turns out that the fruit in basket B is equal to the fruit in basket A.

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">1 - (1/5) - (1/5)</gadget>
<output>3/5 = around 0.6</output>
<gadget id="calculator">(3/5) / 1</gadget>
<output>3/5 = around 0.6</output>
<result>3/5 = around 0.6</result>


学校组织人力清除校园内杂草垃圾，计划12人30分钟完成(每个人的工作效率相同)，若要提前6分钟完成，需要增加多少人．

The school organizes manpower to clear the weeds and garbage on the campus. It is planned that 12 people will complete it in 30 minutes (everyone has the same work efficiency). If it is to be completed 6 minutes earlier, how many more people are needed.

<gadget id="calculator">30 - 6</gadget>
<output>24</output>
<gadget id="calculator">30 / 24</gadget>
<output>5/4 = around 1.25</output>
<gadget id="calculator">12 * (5/4)</gadget>
<output>15</output>
<gadget id="calculator">15 - 12</gadget>
<output>3</output>
<result>3</result>


徐浩借了一本120页的故事书，他3天看了30页．如果借期是8天，从第4天起，他平均每天要看多少页？

Xu Hao borrowed a 120-page storybook, and he read 30 pages in 3 days. If the loan period is 8 days, how many pages will he read on average per day from the 4th day?

<gadget id="calculator">120 - 30</gadget>
<output>90</output>
<gadget id="calculator">8 - 3</gadget>
<output>5</output>
<gadget id="calculator">90 / 5</gadget>
<output>18</output>
<result>18</result>


位于11和199正中间的数是多少．

<gadget id="calculator">199 - 11</gadget>
<output>188</output>
<gadget id="calculator">188 / 2</gadget>
<output>94</output>
<gadget id="calculator">94 + 11</gadget>
<output>105</output>
<result>105</result>


有两块一样长的木板，每块都是20厘米，把它们钉在一起，中间钉在一起的部分长5厘米，现在木板长多少厘米．

There are two wooden boards of the same length, each of which is 20 cm long. They are nailed together, and the length of the part nailed together in the middle is 5 cm. What is the length of the wooden boards in cm?

<gadget id="calculator">20 * 2</gadget>
<output>40</output>
<gadget id="calculator">40 - 5</gadget>
<output>35</output>
<result>35</result>


小林身高168厘米，小会身高166厘米，小军身高174厘米，这三个同学与小婷4人的平均身高是170厘米，小婷的身高是多少

Xiao Lin is 168 cm tall, Xiao Hui is 166 cm tall, and Xiao Jun is 174 cm tall. The average height of these three classmates and Xiao Ting is 170 cm. What is Xiao Ting's height?


石头家距学校794米，他从家出发去学校，已经走了8分钟，剩下的路程比已走的路程少38米．石头的平均速度是多少？(先画出线段图，再解答)

Shitou's house is 794 meters away from the school. He has already walked 8 minutes from his home to the school, and the remaining distance is 38 meters less than the distance traveled. What is the average speed of the stone? (Draw a line diagram first, then answer)

<gadget id="calculator">794 - 38</gadget>
<output>756</output>
<gadget id="calculator">756 / 2</gadget>
<output>378</output>
<gadget id="calculator">378 + 38</gadget>
<output>416</output>
<gadget id="calculator">416 / 8</gadget>
<output>52</output>
<result>52</result>


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


由2、3、6组成的最大的三位数加上最小的三位数，再减去它们的差，结果是多少

What is the result of adding the largest three-digit number consisting of 2, 3, and 6 to the smallest three-digit number and subtracting their difference

<gadget id="calculator">632 + 236</gadget>
<output>868</output>
<gadget id="calculator">632 - 236</gadget>
<output>396</output>
<gadget id="calculator">868 - 396</gadget>
<output>472</output>
<result>472</result>


两个数相除的商是1.8，被除数扩大到原来的10倍，除数缩小到原来的(1/10)后，商是多少．

The quotient of dividing two numbers is 1.8. What is the quotient after the dividend is enlarged to 10 times the original and the divisor is reduced to the original (1/10).

<gadget id="calculator">1.8 * 100</gadget>
<output>180</output>
<result>180</result>


在比例尺是1：60000000的地图上，量得甲、乙两地相距2.5厘米，上午8时30分有一架飞机从甲地飞往乙地，上午10时到达，这架飞机每小时行多少千米．

On a map with a scale of 1:60000000, the distance between A and B is 2.5 centimeters. At 8:30 am, a plane flies from A to B and arrives at 10 am. How many thousand miles does the plane travel per hour? rice.


计算"△/39=6…□"时，余数最大是多少

When calculating "△/39=6…□", what is the maximum remainder

<gadget id="calculator">39 - 1</gadget>
<output>38</output>
<result>38</result>


一个圆锥的高是12分米，与它等底等体积的圆柱的高是多少分米．

If the height of a cone is 12 decimeters, what is the height of a cylinder with the same base and volume as it?

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


袋子里有2个红球，4个黄球和6个篮球，任意摸一个球，摸到黄球的可能性是多少

There are 2 red balls, 4 yellow balls and 6 basketballs in a bag. If you touch a ball at random, what is the probability of getting a yellow ball?

<gadget id="calculator">2 + 4 + 6</gadget>
<output>12</output>
<gadget id="calculator">4 / 12</gadget>
<output>1/3 = around 0.333333</output>
<result>1/3 = around 0.333333</result>


跳绳比赛规定每人跳5分钟，王平共跳337下，张华平均每分钟比王平多跳12下，张华一共跳了多少下？

The rope skipping competition stipulates that each person jumps for 5 minutes. Wang Ping jumped 337 times in total. Zhang Hua jumped 12 times more than Wang Ping per minute on average. How many times did Zhang Hua jump in total?

<gadget id="calculator">12 * 5</gadget>
<output>60</output>
<gadget id="calculator">60 + 337</gadget>
<output>397</output>
<result>397</result>


一辆汽车从甲地开往乙地，第一小时行了全程的(1/6)多12千米，第二小时行了全程的(1/5)少8千米，最后还剩下224千米．求甲乙两地的距离．

A car drives from place A to place B. In the first hour, it travels the whole distance (1/6) more than 12 kilometers, and in the second hour it travels the whole distance (1/5) less than 8 kilometers. In the end, there are 224 kilometers left km. Find the distance between A and B.

<gadget id="calculator">224 - 8</gadget>
<output>216</output>
<gadget id="calculator">12 + 216</gadget>
<output>228</output>
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">1 - (1/6) - (1/5)</gadget>
<output>19/30 = around 0.633333</output>
<gadget id="calculator">228 / (19/30)</gadget>
<output>360</output>
<result>360</result>


25与36的积减去16，差是多少？

What is the difference between the product of 25 and 36 minus 16?

<gadget id="calculator">25 * 36</gadget>
<output>900</output>
<gadget id="calculator">900 - 16</gadget>
<output>884</output>
<result>884</result>


元旦联欢学校买了125瓶果汁和275瓶可乐，把这些饮料平均分给8个班，每个班分几瓶？

The school bought 125 bottles of fruit juice and 275 bottles of Coke for the New Year's Day celebration, and distributed these drinks to 8 classes on average. How many bottles were divided into each class?

<gadget id="calculator">125 + 275</gadget>
<output>400</output>
<gadget id="calculator">400 / 8</gadget>
<output>50</output>
<result>50</result>


一年一班有50人，昨天有4人缺席，昨天出席率是多少．

There are 50 people in one class a year, and 4 people were absent yesterday. What is the attendance rate yesterday?

<gadget id="calculator">50 - 4</gadget>
<output>46</output>
<gadget id="calculator">46 / 50</gadget>
<output>23/25 = around 0.92</output>
<gadget id="calculator">100 / 100</gadget>
<output>1</output>
<gadget id="calculator">(23/25) * 1</gadget>
<output>23/25 = around 0.92</output>
<result>23/25 = around 0.92</result>


学校要挖一个长5米，宽2米，深50分米的沙坑，一共要挖走多少方土？

The school needs to dig a sandpit with a length of 5 meters, a width of 2 meters and a depth of 50 decimeters. How much soil will be excavated in total?

<gadget id="calculator">50 / 10</gadget>
<output>5</output>
<gadget id="calculator">5 * 2 * 5</gadget>
<output>50</output>
<result>50</result>


李叔叔原来体重80千克，坚持体育锻炼后，体重减轻了5%，现在李叔叔体重多少千克？

Uncle Li used to weigh 80 kilograms. After exercising, he lost 5% of his weight. How many kilograms does Uncle Li weigh now?

<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>
<gadget id="calculator">1 - (1/20)</gadget>
<output>19/20 = around 0.95</output>
<gadget id="calculator">80 * (19/20)</gadget>
<output>76</output>
<result>76</result>


在一个直角三角形中，一个角72度，另一个角是多少度．

In a right triangle, one angle is 72 degrees, what is the other angle?

<gadget id="calculator">180 - 90 - 72</gadget>
<output>18</output>
<result>18</result>


有一个近似圆锥形的麦堆，测得底面周长是37.68米，高3米．如果每立方米小麦重约700千克，这堆小麦重约多少千克？

There is a nearly conical wheat pile, the measured circumference of the bottom is 37.68 meters, and the height is 3 meters. If each cubic meter of wheat weighs about 700 kilograms, how many kilograms does this pile of wheat weigh?

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">37.68 / 3.14 / 2</gadget>
<output>6</output>
<gadget id="calculator">6 ** 2</gadget>
<output>36</output>
<gadget id="calculator">(1/3) * 3.14 * 36 * 3</gadget>
<output>113.04</output>
<gadget id="calculator">700 * 113.04</gadget>
<output>79_128</output>
<result>79_128</result>


一个圆柱的底面周长是6厘米，高8厘米．这个圆柱的侧面积是多少平方厘米．

A cylinder has a base circumference of 6 cm and a height of 8 cm. What is the lateral area of this cylinder in square centimeters?

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


一块山地，用总面积的(2/5)种桃树，(2/7)种梨树，其余的种苹果树．种苹果树的面积占总面积的几分之几？

In a mountainous area, (2/5) of the total area is planted with peach trees, (2/7) with pear trees, and the rest is planted with apple trees. What percentage of the total area is planted with apple trees?

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>
<gadget id="calculator">1 - (2/5) - (2/7)</gadget>
<output>11/35 = around 0.314286</output>
<result>11/35 = around 0.314286</result>


要挖一条全长120米的水渠，前8天平均每天挖10.5米，剩下的每天挖12米，还需几天挖完？

To dig a canal with a total length of 120 meters, an average of 10.5 meters per day for the first 8 days, and 12 meters per day for the rest, how many days will it take to finish digging?

<gadget id="calculator">10.5 * 8</gadget>
<output>84</output>
<gadget id="calculator">120 - 84</gadget>
<output>36</output>
<gadget id="calculator">36 / 12</gadget>
<output>3</output>
<result>3</result>


一个长方体的水池，长8米，宽4米，深2米，如果每小时可以放进8立方米水，要放满这一池水需要多少小时？

cuboid pool is 8 meters long, 4 meters wide, and 2 meters deep. If 8 cubic meters of water can be filled every hour, how many hours will it take to fill the pool with water?

<gadget id="calculator">2 / 8</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">8 * 4 * (1/4)</gadget>
<output>8</output>
<result>8</result>


一个圆的周长增加30%，则面积增加多少

If the circumference of a circle increases by 30%, how much does the area increase?


花园里有白玫瑰672朵，是黄玫瑰的7倍，黄玫瑰有多少朵？

There are 672 white roses in the garden, 7 times as many as yellow roses. How many yellow roses are there?

<gadget id="calculator">672 / 7</gadget>
<output>96</output>
<result>96</result>


一个圆锥的体积是5立方分米，和它等底等高的圆柱的体积是多少立方分米．

If the volume of a cone is 5 cubic decimeters, what is the volume of a cylinder with the same base and height?

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


一套课桌椅的价格是120元，其中椅子的价格是课桌的(5/7)．椅子的价格是多少元？

The price of a set of desks and chairs is 120 yuan, and the price of the chairs is that of the desks (5/7). How much is the price of the chair?

<gadget id="calculator">5 + 7</gadget>
<output>12</output>
<gadget id="calculator">5 / 12</gadget>
<output>5/12 = around 0.416667</output>
<gadget id="calculator">120 * (5/12)</gadget>
<output>50</output>
<result>50</result>


一根绳子长x米，捆行李用去2.8米后，还剩下的是用去的2倍，求绳子的长度？

A rope is x meters long. After 2.8 meters are used to bind the luggage, the remaining amount is twice the amount used. Find the length of the rope?

<gadget id="calculator">2 * 2.8</gadget>
<output>5.6</output>
<gadget id="calculator">5.6 + 2.8</gadget>
<output>8.4</output>
<result>8.4</result>


某公园在一块上底50米，下底20米，高40米的梯形空地上种树，平均每棵树占地4平方米，这块地可种树多少棵？

A park plants trees on a trapezoidal open space with an upper base of 50 meters, a lower base of 20 meters, and a height of 40 meters. On average, each tree occupies an area of 4 square meters. How many trees can be planted in this land?

<gadget id="calculator">50 + 20</gadget>
<output>70</output>
<gadget id="calculator">40 / 2</gadget>
<output>20</output>
<gadget id="calculator">70 * 20</gadget>
<output>1_400</output>
<gadget id="calculator">1_400 / 4</gadget>
<output>350</output>
<result>350</result>


经济不景气，某公司原裁员若干人，若少裁3人，则该公司共裁员(1/3)，若多裁6人，则该公司共裁员(1/2)，则该公司原有员工多少人？

The economy is in recession. A certain company lays off a number of employees. If 3 people are cut less, the company will lay off a total of 1/3 employees. If 6 more people are laid off, the company will lay off a total of 1/2 employees. How many employees?

<gadget id="calculator">6 + 3</gadget>
<output>9</output>
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">(1/2) - (1/3)</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">9 / (1/6)</gadget>
<output>54</output>
<result>54</result>


把一个棱长为3厘米的正方体，切成两个长方体，这两个长方体的表面积之和比原来的正方体的表面积增加了多少平方厘米．

If a cube with an edge length of 3 cm is cut into two cuboids, the sum of the surface areas of the two cuboids is increased by how many square centimeters compared to the surface area of the original cube.

<gadget id="calculator">3 * 3 * 2</gadget>
<output>18</output>
<result>18</result>


本学期的开学时间是3月2日．7月10日放暑假，这学期一共有多少天．

The semester starts on March 2nd. The summer vacation is on July 10. How many days are there in this semester?

<gadget id="calculator">31 - 2</gadget>
<output>29</output>
<gadget id="calculator">29 + 1</gadget>
<output>30</output>
<gadget id="calculator">30 + 30 + 31 + 30 + 10</gadget>
<output>131</output>
<result>131</result>


食堂买来6袋面粉，每袋25千克，买来大米的重量正好是面粉的2倍，买来大米多少千克？

The cafeteria bought 6 bags of flour, each bag was 25 kilograms, and the weight of the rice bought was exactly twice the weight of the flour. How many kilograms of rice was bought?

<gadget id="calculator">25 * 6</gadget>
<output>150</output>
<gadget id="calculator">150 * 2</gadget>
<output>300</output>
<result>300</result>


把一根40厘米长的铁丝围成一个正方形(铁丝没有剩余)，这个正方形的边长是多少厘米．

A 40 cm long iron wire is used to form a square (no wire left), what is the side length of this square in cm?

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


已知华氏度=32+摄氏度*1.8，那么97.7华氏度=多少摄氏度．

It is known that Fahrenheit = 32 + Celsius * 1.8, then 97.7 Fahrenheit = how many degrees Celsius.

<gadget id="calculator">97.7 - 32</gadget>
<output>65.7</output>
<gadget id="calculator">65.7 / 1.8</gadget>
<output>36.5</output>
<result>36.5</result>


从上午11：00放学到下午2：00到校，时针旋转了多少度？多少°

How many degrees does the hour hand rotate from 11:00 am to school at 2:00 pm? how many degrees

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


如果字母A代表一个自然数(A不为0)，那么下列各式得数最大的是A/多少

If the letter A represents a natural number (A is not 0), then the largest number of the following formulas is A/how much

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


运动场的跑道通常1圈是400米，两圈半是多少千米．

The runway of the sports field is usually 400 meters in one lap, and how many kilometers is two and a half laps.

<gadget id="calculator">400 * 2.5</gadget>
<output>1_000</output>
<gadget id="calculator">1_000 / 1_000</gadget>
<output>1</output>
<result>1</result>


一列火车长700米，从路边的一棵大树旁边通过用1.75分，以同样的速度通过一座大桥，以车头上桥到车尾离桥共用4分，这座大桥长多少米？

train is 700 meters long. It takes 1.75 minutes to pass by a big tree on the side of the road. It takes 4 minutes to pass a bridge at the same speed from the front of the train to the end of the bridge. How long is the bridge?

<gadget id="calculator">700 / 1.75</gadget>
<output>400</output>
<gadget id="calculator">400 * 4</gadget>
<output>1_600</output>
<gadget id="calculator">1_600 - 700</gadget>
<output>900</output>
<result>900</result>


五2班有37名师生照相合影．定价：32.5元(含5张照片)加印一张3.5元．一共需要37张照片，共需付多少元？

There were 37 teachers and students in class 5 and 2 taking photos. Pricing: 32.5 yuan (including 5 photos) plus 3.5 yuan for one print. A total of 37 photos are needed, how much is the total payment?

<gadget id="calculator">37 - 5</gadget>
<output>32</output>
<gadget id="calculator">3.5 * 32</gadget>
<output>112</output>
<gadget id="calculator">112 + 32.5</gadget>
<output>144.5</output>
<result>144.5</result>


甲、乙两车速度相等，沿一条与铁路平行的公路相向而行，一列长为150米的火车，经过同向行驶的甲车用了30秒钟，又过了3分钟，遇到了乙车，再用5秒钟经过了乙车，问，乙车再过多少秒遇到甲车？

Car A and Car B are traveling at the same speed along a road parallel to the railway. A train with a length of 150 meters passes by car A traveling in the same direction for 30 seconds. After another 3 minutes, it meets car B. , It takes another 5 seconds to pass car B, ask, how many seconds will it take for car B to meet car A?

<gadget id="calculator">1.4 - 1</gadget>
<output>0.4</output>
<gadget id="calculator">1 + 1</gadget>
<output>2</output>
<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>
<gadget id="calculator">0.4 * (3/2) * 60</gadget>
<output>36</output>
<gadget id="calculator">36 - 5</gadget>
<output>31</output>
<result>31</result>


小明读一本书，每天读35页，第10天就能读完；每天读40页，第8天就能读完．这本书最少有多少页．

Xiao Ming reads a book, reads 35 pages a day, and can finish it on the 10th day; reads 40 pages a day, can finish it on the 8th day. How many pages does this book have at least.

<gadget id="calculator">35 * 9</gadget>
<output>315</output>
<gadget id="calculator">315 + 1</gadget>
<output>316</output>
<result>316</result>


一种商品，第一次降价10%，第二次降价20%，现价的价格是最初价格的多少．

For a commodity, the first price is reduced by 10%, and the second price is reduced by 20%. The current price is the original price.

<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">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 * (9/10) * (4/5)</gadget>
<output>18/25 = around 0.72</output>
<result>18/25 = around 0.72</result>


100减去它的(1/2)，再减去余下的(1/3)，再减去余下的(1/4)，依次下去，直到减去余下的(1/50)，最后剩下多少？

Subtract its (1/2) from 100, then subtract the remaining (1/3), then subtract the remaining (1/4), and so on until the remaining (1/50) is subtracted, and finally the remaining How many?

<gadget id="calculator">1 / 50</gadget>
<output>1/50 = around 0.02</output>
<gadget id="calculator">100 * (1/50)</gadget>
<output>2</output>
<result>2</result>


一个平行四边形的面积是29平方米，与它等底等高的三角形的面积是多少平方米．

If the area of a parallelogram is 29 square meters, what is the area of a triangle with the same base and height in square meters?

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


从三位数100，101，102，…，699，700中任意取出n个不同的数，使得总能找到其中三个数，他们的数字和相同．那么n的最小值为多少．

Randomly select n different numbers from the three-digit number 100, 101, 102, ..., 699, 700, so that three of them can always be found, and their sums are the same. So what is the minimum value of n?

<gadget id="calculator">22 * 2</gadget>
<output>44</output>
<gadget id="calculator">44 + 2</gadget>
<output>46</output>
<gadget id="calculator">46 + 1</gadget>
<output>47</output>
<result>47</result>


把一个边长12分米的正方形剪成3个同样大小的长方形，这个长方形的宽是多少分米．

Cut a square with a side length of 12 decimeters into 3 rectangles of the same size, what is the width of the rectangle?

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


王叔叔用一段铁丝围了一个等腰三角形，它的一条边长(3/5)米，另一条边长(1/4)米．这段铁丝至少长多少米？

Uncle Wang surrounded an isosceles triangle with a piece of wire, one side of which is (3/5) meters long and the other side is (1/4) meters long. What is the minimum length of this wire?

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">(3/5) + (3/5) + (1/4)</gadget>
<output>29/20 = around 1.45</output>
<result>29/20 = around 1.45</result>


两辆汽车同时从相距1350千米的两地相对开出，13小时后相距50千米，一辆汽车每小时行48千米，另一辆汽车每小时行多少千米．

Two cars drive at the same time from two places 1350 kilometers apart. After 13 hours, the distance is 50 kilometers. One car travels 48 kilometers per hour, and the other car travels how many kilometers per hour.

<gadget id="calculator">1_350 - 50</gadget>
<output>1_300</output>
<gadget id="calculator">1_300 / 13</gadget>
<output>100</output>
<gadget id="calculator">100 - 48</gadget>
<output>52</output>
<result>52</result>


教师节，小红、小平、小莉、小云每人做2张贺卡送给老师．算一算，一共做了多少张贺卡？

On Teacher's Day, each of Xiaohong, Xiaoping, Xiaoli, and Xiaoyun made 2 greeting cards for the teacher. Do the math, how many greeting cards did you make in total?

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


把一个底面直径是8cm，高为4cm的圆柱形橡皮泥做成底面半径为4cm，高为3cm的圆锥，可以做多少个这样的圆锥？

cylindrical plasticine with a base diameter of 8 cm and a height of 4 cm is made into a cone with a base radius of 4 cm and a height of 3 cm. How many such cones can be made?

<gadget id="calculator">8 / 2</gadget>
<output>4</output>
<gadget id="calculator">4 ** 2</gadget>
<output>16</output>
<gadget id="calculator">3.14 * 16 * 4</gadget>
<output>200.96</output>
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">(1/3) * 3.14 * 16 * 3</gadget>
<output>50.24</output>
<gadget id="calculator">200.96 / 50.24</gadget>
<output>4</output>
<result>4</result>


下面小数中最接近于10的数是多少

What is the closest number to 10 among the following decimals


小雪在计算一道除法算式是，把除以6按照乘6去计算，结果的(2/3)，正确答案是多少．

Xiaoxue is calculating a division formula. Divide by 6 and calculate by multiplying by 6. The result is (2/3), what is the correct answer?

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>
<gadget id="calculator">(2/3) / 6 / 6</gadget>
<output>1/54 = around 0.018519</output>
<result>1/54 = around 0.018519</result>


东风小学有一块长方形试验田，试验田的面积是448平方米，试验田长28米，宽是多少米？

There is a rectangular experimental field in Dongfeng Primary School. The area of the experimental field is 448 square meters. The length of the experimental field is 28 meters. How many meters is the width?

<gadget id="calculator">448 / 28</gadget>
<output>16</output>
<result>16</result>


一种收音机，现在每台成本68元，比原来降低了(3/20)，原来每台成本多少元？

A radio now costs 68 yuan per set, which is 3/20 lower than before. How much did each set cost in the past?

<gadget id="calculator">3 / 20</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">68 / (17/20)</gadget>
<output>80</output>
<result>80</result>


有六个数的平均值为17，若再加入两个数其平均值仍为17，那么新加入的这两个数的总和是多少．

The average of six numbers is 17. If two more numbers are added and the average is still 17, what is the sum of the two newly added numbers?

<gadget id="calculator">17 * 2</gadget>
<output>34</output>
<result>34</result>


敬老院里有三位老寿星，他们的平均年龄是92岁，王爷爷90岁，陈奶奶92岁，张奶奶多少岁？

There are three old birthday stars in the nursing home, their average age is 92 years old, Grandpa Wang is 90 years old, Grandma Chen is 92 years old, how old is Grandma Zhang?

<gadget id="calculator">92 * 3</gadget>
<output>276</output>
<gadget id="calculator">276 - 90 - 92</gadget>
<output>94</output>
<result>94</result>


在用折线统计图统计东风自行车厂各季度产量情况时，纵轴上0.8厘米的线段表示1000辆，那么3.2厘米表示多少辆．

When using the line chart to count the production of Dongfeng Bicycle Factory in each quarter, the line segment of 0.8 cm on the vertical axis represents 1000 vehicles, and the line segment of 3.2 cm represents how many vehicles.

<gadget id="calculator">3.2 / 0.8</gadget>
<output>4</output>
<gadget id="calculator">1_000 * 4</gadget>
<output>4_000</output>
<result>4_000</result>


商店里有6只不同的货箱，分别装有货物15，16，18，19，20，31千克．两个顾客买走了其中5箱货物，而且一个顾客的货物重量是另一个顾客的2倍，商店剩下的那箱货物是多少千克？

There are 6 different cargo boxes in the store, containing 15, 16, 18, 19, 20, and 31 kilograms of goods respectively. Two customers bought 5 boxes of goods, and the weight of one customer's goods is twice that of the other customer, how many kilograms of goods are left in the store?


把(5/12)平均分成10份，每份是多少？

Divide (5/12) into 10 equal parts, how much is each part?

<gadget id="calculator">5 / 12</gadget>
<output>5/12 = around 0.416667</output>
<gadget id="calculator">(5/12) / 10</gadget>
<output>1/24 = around 0.041667</output>
<result>1/24 = around 0.041667</result>


用一张边长是12.56厘米的正方形纸，围成一个圆柱形纸筒(接头处不计，这个圆柱的底面半径是多少？

Use a piece of square paper with a side length of 12.56 cm to form a cylindrical paper tube (not counting the joints, what is the radius of the bottom surface of this cylinder?

<gadget id="calculator">12.56 / 3.14 / 2</gadget>
<output>2</output>
<result>2</result>


希望小学共有25个中队，每个中队又分成4个小队．全校共有少先队员1200人，平均每个小队有多少人？

Hope Primary School has a total of 25 squadrons, and each squadron is divided into 4 teams. There are 1,200 young pioneers in the whole school. How many people are there on average in each team?

<gadget id="calculator">25 * 4</gadget>
<output>100</output>
<gadget id="calculator">1_200 / 100</gadget>
<output>12</output>
<result>12</result>


一个平行四边形形的面积是80平方厘米，底是20厘米，高多少厘米．

The area of a parallelogram is 80 square centimeters, the base is 20 centimeters, and the height is in centimeters.

<gadget id="calculator">80 / 20</gadget>
<output>4</output>
<result>4</result>


一个平行四边形，它的高是1.5厘米，底是高的1.2倍，这个平行四边形的面积是多少平方厘米．

A parallelogram whose height is 1.5 cm and whose base is 1.2 times the height, what is the area of the parallelogram in square centimeters?

<gadget id="calculator">1.5 * 1.2 * 1.5</gadget>
<output>2.7</output>
<result>2.7</result>


把一根绳子按3：2截成甲、乙两段，已知甲段长4.8米，乙段长多少米？

Cut a rope into two sections A and B according to the ratio of 3:2. It is known that the length of section A is 4.8 meters. How many meters is the length of section B?

<gadget id="calculator">4.8 / 3</gadget>
<output>1.6</output>
<gadget id="calculator">1.6 * 2</gadget>
<output>3.2</output>
<result>3.2</result>


体育课上，同学们排成一列纵队，小明站在其中．他数了数，排在他前面的人数是总人数的(2/3)，排在他后面的人数是总人数的(1/4)．小明排第多少个．

In the physical education class, the students lined up in a column, and Xiao Ming stood among them. He counted, the number of people in front of him is 2/3 of the total number, and the number of people behind him is 1/4 of the total number. How many is Xiaoming ranked?

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">1 - (2/3) - (1/4)</gadget>
<output>1/12 = around 0.083333</output>
<gadget id="calculator">1 / (1/12)</gadget>
<output>12</output>
<gadget id="calculator">12 * (2/3)</gadget>
<output>8</output>
<gadget id="calculator">8 + 1</gadget>
<output>9</output>
<result>9</result>


王师傅和张师傅共同生产一批零件，王师傅每天生产38个，张师傅每天生产30个，他们一共生产了5天完成了任务，这批零件共有多少个？

Master Wang and Master Zhang jointly produced a batch of parts. Master Wang produced 38 pieces a day, and Master Zhang produced 30 pieces a day. They completed the task in a total of 5 days of production. How many parts are there in this batch?

<gadget id="calculator">38 + 30</gadget>
<output>68</output>
<gadget id="calculator">68 * 5</gadget>
<output>340</output>
<result>340</result>


五张卡片，上面分别写着0、1、3、5、8，从中取出3张拼成一个三位数，使这个三位数可以被3整除，一共可以拼成多少个这样的三位数．

Five cards, with 0, 1, 3, 5, 8 written on them, take 3 of them to form a three-digit number, so that the three-digit number can be divisible by 3, how many such three-digit numbers can be formed in total ．


It is known that ((1/(a))+(1/(b))+(1/(c))+(1/(d))+(1/36))+(1/45)=1, And a, b, c, d are exactly four consecutive natural numbers, then what is b+d equal to?

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


有20个同学站成一行，间隔2米，这列队伍长多少米？

There are 20 students standing in a line with an interval of 2 meters. How long is the line?

<gadget id="calculator">20 - 1</gadget>
<output>19</output>
<gadget id="calculator">19 * 2</gadget>
<output>38</output>
<result>38</result>