牧羊人赶着一群羊去放牧，跑走了一只公羊后，他发现剩下的羊中公羊和母羊的比是9：7．过了一会儿，跑走的公羊回到羊群，却又跑走了一只母羊，这时公羊与母羊的比是7：5．这群羊原来有多少只？

A shepherd drove a group of sheep to graze. After one ram ran away, he found that the ratio of rams to ewes among the remaining sheep was 9:7. After a while, the ram that ran away returned to the flock, but ran away with another ewe. At this time, the ratio of rams to ewes was 7:5. How many sheep were there in this flock?

<gadget id="calculator">9 + 7</gadget>
<output>16</output>
<gadget id="calculator">7 / 16</gadget>
<output>7/16 = around 0.4375</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">(7/16) - (5/12)</gadget>
<output>1/48 = around 0.020833</output>
<gadget id="calculator">1 / (1/48)</gadget>
<output>48</output>
<gadget id="calculator">48 + 1</gadget>
<output>49</output>
<result>49</result>


一堆煤，用了60%，还剩这堆煤的多少

A pile of coal, 60% has been used, how much of this pile of coal is left

<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>
<result>2/5 = around 0.4</result>


一袋大米，吃了20%，还剩16千克，这袋大米原有多少千克．

A bag of rice is 20% eaten, and there are 16 kilograms left. How many kilograms does this bag of rice 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">16 / (4/5)</gadget>
<output>20</output>
<result>20</result>


李叔叔和朋友骑车去旅行．有一天上午2小时骑了44千米，下午3小时骑了60千米，上午的平均速度比下午的平均速度多多少？

Uncle Li and his friends went on a trip by bicycle. One day, I rode 44 kilometers in 2 hours in the morning and 60 kilometers in 3 hours in the afternoon. How much more is the average speed in the morning than in the afternoon?

<gadget id="calculator">44 / 2</gadget>
<output>22</output>
<gadget id="calculator">60 / 3</gadget>
<output>20</output>
<gadget id="calculator">22 - 20</gadget>
<output>2</output>
<result>2</result>


学校原有白粉笔78盒，又买来27盒，正好是彩粉笔的5倍，学校有彩色粉笔多少盒？

The school originally had 78 boxes of white chalks, but bought 27 boxes, which is exactly 5 times the amount of colored chalks. How many boxes of colored chalks does the school have?

<gadget id="calculator">78 + 27</gadget>
<output>105</output>
<gadget id="calculator">105 / 5</gadget>
<output>21</output>
<result>21</result>


人造地球卫星的速度是8千米/秒，相当于宇宙飞船速度的(40/57)，宇宙飞船的速度是多少？(用方程解答)

The speed of the artificial earth satellite is 8 km/s, which is equivalent to (40/57) of the speed of the spaceship. What is the speed of the spaceship? (solution with equation)

<gadget id="calculator">40 / 57</gadget>
<output>40/57 = around 0.701754</output>
<gadget id="calculator">8 / (40/57)</gadget>
<output>57/5 = around 11.4</output>
<result>57/5 = around 11.4</result>


李大妈家有鸡25只，鸭比鸡少3只，鹅的只数是鸭的一半，鹅有多少只？

Aunt Li’s family has 25 chickens, 3 less ducks than chickens, and half the number of geese. How many geese are there?

<gadget id="calculator">25 - 3</gadget>
<output>22</output>
<gadget id="calculator">22 / 2</gadget>
<output>11</output>
<result>11</result>


甲数的(1/6)与乙数的(1/5)相等，甲数是90，乙数是多少．

(1/6) of the number A is equal to (1/5) of the number B. The number A is 90. What is the number B?

<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">(1/6) / (1/5)</gadget>
<output>5/6 = around 0.833333</output>
<gadget id="calculator">90 * (5/6)</gadget>
<output>75</output>
<result>75</result>


学校组织学生修补林场种植一批树，第一次种了3500棵，第二次种的相当于第一次的(5/7)，两天共种了这批树的25%．这批树共有多少棵？

The school organized students to repair the forest farm and plant a batch of trees. The first time they planted 3,500 trees, and the second time they planted 5/7 of the first time. A total of 25% of the trees were planted in two days. How many trees are there in total?

<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>
<gadget id="calculator">3_500 * (5/7)</gadget>
<output>2_500</output>
<gadget id="calculator">3_500 + 2_500</gadget>
<output>6_000</output>
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">6_000 / (1/4)</gadget>
<output>24_000</output>
<result>24_000</result>


把分数(3/13)的分子、分母加上同一个数后得(3/5)，所加的数是多少．

Add the same number to the numerator and denominator of the fraction (3/13) to get (3/5), what is the added number?

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>
<gadget id="calculator">(3/5) * 13</gadget>
<output>39/5 = around 7.8</output>
<gadget id="calculator">(39/5) - 3</gadget>
<output>24/5 = around 4.8</output>
<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">(24/5) / (2/5)</gadget>
<output>12</output>
<result>12</result>


下面的分数中，比(5/9)小的是多少

Which of the following fractions is less than (5/9)

<gadget id="calculator">6 / 13</gadget>
<output>6/13 = around 0.461538</output>
<result>6/13 = around 0.461538</result>


一种商品如果按定价九折出售，则盈利20元，按定价七点五折出售，亏损25元，定价是多少元．

If a commodity is sold at 10% off the price, the profit will be 20 yuan, and if it is sold at 75% off the price, the loss will be 25 yuan. What is the price?

<gadget id="calculator">20 + 25</gadget>
<output>45</output>
<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>
<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">(9/10) - (3/4)</gadget>
<output>3/20 = around 0.15</output>
<gadget id="calculator">45 / (3/20)</gadget>
<output>300</output>
<result>300</result>


200*25的积末尾有多少个0．

How many 0s are there at the end of the product of 200*25?


学校举行艺术体操表演，如果每行站24人，正好站12行，如果现在站成8行，平均每行站多少人？

The school holds a rhythmic gymnastics performance. If there are 24 people standing in each row, it is exactly 12 rows. If they stand in 8 rows now, how many people stand in each row on average?

<gadget id="calculator">24 * 12</gadget>
<output>288</output>
<gadget id="calculator">288 / 8</gadget>
<output>36</output>
<result>36</result>


筑路队修一条公路，第一周修了全长的(1/6)，第二周修了全长的(2/9)，还剩这条公路的几分之几没修？

The road construction team repaired a road, the full length (1/6) was repaired in the first week, and the full length (2/9) was repaired in the second week, what fraction of the road is left unrepaired?

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>
<gadget id="calculator">1 - (1/6) - (2/9)</gadget>
<output>11/18 = around 0.611111</output>
<result>11/18 = around 0.611111</result>


张师傅有73个苹果，101个梨和143个香蕉，平均分给若干个徒弟后，发现三种水果剩下的一样多，请问张师傅最多有多少个徒弟？

Master Zhang has 73 apples, 101 pears, and 143 bananas. After distributing them equally to several apprentices, he finds that the remaining three fruits are the same. How many apprentices does Master Zhang have at most?

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


冬冬期末考试语文、数学、英语、地理、历史五科中的四科成绩如下：语文88分，数学99分，地理94分，历史95分．英语成绩比五科的总平均分低2.4分，冬冬英语的得分是多少？

Four of the five subjects of Chinese, Mathematics, English, Geography, and History in the winter and winter final exams are as follows: 88 points for Chinese, 99 points for mathematics, 94 points for geography, and 95 points for history. The English score is 2.4 points lower than the total average score of the five subjects. What is Dongdong's English score?

<gadget id="calculator">88 / 5</gadget>
<output>88/5 = around 17.6</output>
<gadget id="calculator">99 / 5</gadget>
<output>99/5 = around 19.8</output>
<gadget id="calculator">94 / 5</gadget>
<output>94/5 = around 18.8</output>
<gadget id="calculator">95 / 5</gadget>
<output>19</output>
<gadget id="calculator">19 - 2.4</gadget>
<output>16.6</output>
<gadget id="calculator">(88/5) + (99/5) + (94/5) + 16.6</gadget>
<output>72.8</output>
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">72.8 / (4/5)</gadget>
<output>91</output>
<result>91</result>


一仓库有煤若干千克，三天用完．第一天用去(1/5)，第二天用去余下的2/5，第三天用去的比前两天总和少18千克，则共有煤多少千克．

There are several kilograms of coal in a warehouse, which can be used up in three days. If (1/5) is used on the first day, the remaining 2/5 is used on the second day, and the amount used on the third day is 18 kg less than the sum of the previous two days, how many kilograms of coal are there in total?

<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">2 / 5</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">(4/5) * (2/5)</gadget>
<output>8/25 = around 0.32</output>
<gadget id="calculator">1 - (1/5) - (8/25)</gadget>
<output>12/25 = around 0.48</output>
<gadget id="calculator">(8/25) - (12/25)</gadget>
<output>-4/25 = around -0.16</output>
<gadget id="calculator">(1/5) + (-4/25)</gadget>
<output>1/25 = around 0.04</output>
<gadget id="calculator">18 / (1/25)</gadget>
<output>450</output>
<result>450</result>


对自然数n，作如下操作：各位数字相加，得另一自然数，若新的自然数为一位数，那么操作停止，若新的自然数不是一位数，那么对新的自然数继续上面的操作，当得到一个一位数为止，现对1，2，3…，1998如此操作，最后得到的一位数是7的数一共有多少个．

For the natural number n, perform the following operations: add the digits to get another natural number, if the new natural number is a one-digit number, then the operation stops, if the new natural number is not a one-digit number, then continue the above operation for the new natural number, When a one-digit number is obtained, the operation is performed on 1, 2, 3..., 1998. How many numbers are there in which the final one-digit number is 7?

<gadget id="calculator">1_996 - 7</gadget>
<output>1_989</output>
<gadget id="calculator">1_989 / 9</gadget>
<output>221</output>
<gadget id="calculator">221 + 1</gadget>
<output>222</output>
<result>222</result>


李明把4000元钱存入银行，定期三年，年利率为5.22%，到期后，他连本带息全部捐给地震灾区，他捐了多少元钱．(利息税是5%)

Li Ming deposited 4,000 yuan in the bank for a period of three years, with an annual interest rate of 5.22%. After the maturity, he donated all the principal and interest to the earthquake-stricken area. How much did he donate? (Interest tax is 5%)

<gadget id="calculator">5.22 / 100</gadget>
<output>0.0522</output>
<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>
<gadget id="calculator">1 - (1/20)</gadget>
<output>19/20 = around 0.95</output>
<gadget id="calculator">4_000 * 0.0522 * 3 * (19/20)</gadget>
<output>595.08</output>
<result>595.08</result>


在同一时间内，火车行驶360千米，而卡车只行驶120千米，已知火车每小时行驶90千米，那么卡车每小时行驶多少．

At the same time, the train travels 360 kilometers, but the truck only travels 120 kilometers. It is known that the train travels 90 kilometers per hour, so how much does the truck travel per hour?

<gadget id="calculator">360 / 120</gadget>
<output>3</output>
<gadget id="calculator">90 / 3</gadget>
<output>30</output>
<result>30</result>


一种面包车降价15%后，现在的售价是每辆10.2万元．这种面包车原来的售价是每辆多少万元？

After a 15% reduction in the price of a van, the current price is 102,000 yuan each. How much is the original price of this van?

<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>
<gadget id="calculator">1 - (3/20)</gadget>
<output>17/20 = around 0.85</output>
<gadget id="calculator">10.2 / (17/20)</gadget>
<output>12</output>
<result>12</result>


<gadget id="calculator">1_978 + 1_980</gadget>
<output>3_958</output>
<gadget id="calculator">1_979 * 3_958</gadget>
<output>7_832_882</output>
<gadget id="calculator">1 + 1_978</gadget>
<output>1_979</output>
<gadget id="calculator">1_978 / 2</gadget>
<output>989</output>
<gadget id="calculator">1_979 * 989 * 2</gadget>
<output>3_914_462</output>
<gadget id="calculator">3_914_462 + 1_979</gadget>
<output>3_916_441</output>
<gadget id="calculator">7_832_882 / 3_916_441</gadget>
<output>2</output>
<result>2</result>


杨老师从一楼办公室到教室上课，每走一层楼有24级台阶，一共走了72级台阶，杨老师到多少楼教室上课？

Teacher Yang goes from the office on the first floor to the classroom. There are 24 steps on each floor, and there are 72 steps in total. How many classrooms does Teacher Yang go to?

<gadget id="calculator">72 / 24</gadget>
<output>3</output>
<gadget id="calculator">3 + 1</gadget>
<output>4</output>
<result>4</result>


深圳帝王大厦高384米，比世界之窗仿造的埃菲尔铁塔的3倍还多60米，仿造的埃菲尔铁塔高多少米？(用方程解答)

Shenzhen Emperor Building is 384 meters high, which is 60 meters more than three times the Eiffel Tower imitated by Window of the World. How many meters is the imitated Eiffel Tower? (solution with equation)

<gadget id="calculator">384 - 60</gadget>
<output>324</output>
<gadget id="calculator">324 / 3</gadget>
<output>108</output>
<result>108</result>


一个自然数可以分解为三个质因数的积，如果三个质因数的平方和是7950，这个自然数是多少．

A natural number can be decomposed into the product of three prime factors. If the sum of the squares of the three prime factors is 7950, what is the natural number?

<gadget id="calculator">2 * 5 * 89</gadget>
<output>890</output>
<result>890</result>


要把36个球装在盒子里，每个盒子装得同样多，有多少种装法．

How many ways are there to pack 36 balls into boxes, each with the same number of balls?

<gadget id="calculator">2 + 2 + 2 + 2 + 1</gadget>
<output>9</output>
<result>9</result>


客车每小时行80千米，多少小时能行200千米的路程．

A passenger car travels 80 kilometers per hour, how many hours can it travel 200 kilometers.

<gadget id="calculator">200 / 80</gadget>
<output>5/2 = around 2.5</output>
<result>5/2 = around 2.5</result>


钟面上分针从12走到6，那么时针旋转的角度是多少．

If the minute hand on the clock goes from 12 to 6, what is the angle of rotation of the hour hand?

<gadget id="calculator">360 / 12</gadget>
<output>30</output>
<gadget id="calculator">0.5 * 30</gadget>
<output>15</output>
<result>15</result>


街道的一旁均匀地栽了50棵树(两端都栽)，树与树之间的距离是4米，这条街道长多少米．

50 trees are evenly planted on one side of the street (both ends are planted), and the distance between the trees is 4 meters. How long is the street in meters?

<gadget id="calculator">50 - 1</gadget>
<output>49</output>
<gadget id="calculator">49 * 4</gadget>
<output>196</output>
<result>196</result>


一个梯形的上底是8厘米，下底是12厘米，面积是40平方厘米，高是多少．

The upper base of a trapezoid is 8 cm, the lower base is 12 cm, the area is 40 cm2, what is the height?

<gadget id="calculator">8 + 12</gadget>
<output>20</output>
<gadget id="calculator">2 / 20</gadget>
<output>1/10 = around 0.1</output>
<gadget id="calculator">40 * (1/10)</gadget>
<output>4</output>
<result>4</result>


王大妈收了64千克黄瓜，李大妈收了28千克黄瓜．把这些黄瓜平均装进4个筐里，每筐装多少千克？

Aunt Wang received 64 kilograms of cucumbers, and Aunt Li received 28 kilograms of cucumbers. Pack these cucumbers into 4 baskets on average, how many kilograms are packed in each basket?

<gadget id="calculator">64 + 28</gadget>
<output>92</output>
<gadget id="calculator">92 / 4</gadget>
<output>23</output>
<result>23</result>


幸福旅行社接待了100名外国游客，这些游客都至少会说英语和日语中的一种，已知会说英语的有66人，会说日语的有49人，则英语和日语都会说的有多少人？

Happiness Travel Agency has received 100 foreign tourists. These tourists can speak at least one of English and Japanese. It is known that there are 66 people who can speak English and 49 people who can speak Japanese. How many people can speak both English and Japanese? people?

<gadget id="calculator">49 - 100</gadget>
<output>-51</output>
<gadget id="calculator">66 + (-51)</gadget>
<output>15</output>
<result>15</result>


某校组织学生到水果基地进行社会实践活动，同学们摘了72箱水果，每箱125千克．准备用5辆小汽车来运输，每辆小汽车运多少千克？

A school organized students to carry out social practice activities at the fruit base. The students picked 72 boxes of fruit, each box weighing 125 kilograms. 5 cars are going to be used for transportation, how many kilograms are transported by each car?

<gadget id="calculator">72 / 5</gadget>
<output>72/5 = around 14.4</output>
<gadget id="calculator">125 * (72/5)</gadget>
<output>1_800</output>
<result>1_800</result>


粮站收购大豆2.34万吨，玉米比大豆多0.42万吨，粮站收购玉米多少万吨？

The grain station purchased 23,400 tons of soybeans, and corn was 4,200 tons more than soybeans. How many tons of corn were purchased by the grain station?

<gadget id="calculator">2.43 + 0.42</gadget>
<output>2.85</output>
<result>2.85</result>


12月14日，我国成功将嫦娥3号送达月球．嫦娥着陆器重达3000千克，比"玉兔"号月球车重量的3倍还多600千克．"玉兔"号月球车的重量是多少千克？

On December 14, my country successfully sent Chang'e-3 to the moon. The Chang'e lander weighs 3,000 kilograms, which is 600 kilograms more than three times the weight of the "Yutu" lunar rover. How many kilograms does the "Yutu" lunar rover weigh?

<gadget id="calculator">3_000 - 600</gadget>
<output>2_400</output>
<gadget id="calculator">2_400 / 3</gadget>
<output>800</output>
<result>800</result>


一个小数，如果把小数点向右移一位所得的数比原来增加了63.72，这个小数多少．

For a decimal, if the decimal point is moved one place to the right, the number obtained will increase by 63.72. What is the decimal?

<gadget id="calculator">10 - 1</gadget>
<output>9</output>
<gadget id="calculator">63.72 / 9</gadget>
<output>7.08</output>
<result>7.08</result>


快车和慢车同时从东、西两地相对开出．已知快车每小时行40千米，经过3小时后，快车已驶过中点25千米，这时与慢车还相距7千米．慢车每小时行多少千米．

The express train and the local train leave oppositely from the east and west at the same time. It is known that the express train travels 40 kilometers per hour. After 3 hours, the express train has passed the midpoint of 25 kilometers, and the distance between the express train and the slow train is still 7 kilometers. How many kilometers per hour does the slow train travel.

<gadget id="calculator">40 * 3</gadget>
<output>120</output>
<gadget id="calculator">120 - 25 - 25 - 7</gadget>
<output>63</output>
<gadget id="calculator">63 / 3</gadget>
<output>21</output>
<result>21</result>


一个苹果平均分成4份，小明吃了2块，小明吃了这个苹果的多少

An apple is divided into 4 parts on average, Xiao Ming eats 2 pieces, how much of this apple does Xiao Ming eat

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


淘气看一本114页的故事书，第一天看了(1/6)，第二天应从第多少页看起．

Naughty reading a 114-page story book, read (1/6) on the first day, how many pages should I read on the second day.

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">114 * (1/6)</gadget>
<output>19</output>
<gadget id="calculator">19 + 1</gadget>
<output>20</output>
<result>20</result>


小华看一本书，已看的页数与剩下的页数的比是2：3，如果再看26页，正好看完这本书的一半．这本书一共多少页？

When Xiaohua reads a book, the ratio of the number of pages he has read to the number of remaining pages is 2:3. If he reads another 26 pages, he will finish half of the book. How many pages are there in this book?

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>
<gadget id="calculator">26 / (1/10)</gadget>
<output>260</output>
<result>260</result>


135减去7与12的积，再乘4，积是多少？

Subtract the product of 7 and 12 from 135 and multiply by 4. What is the product?

<gadget id="calculator">7 * 12</gadget>
<output>84</output>
<gadget id="calculator">135 - 84</gadget>
<output>51</output>
<gadget id="calculator">51 * 4</gadget>
<output>204</output>
<result>204</result>


三年级一班共有49名同学．现在他们要渡过一条河，只有一条可乘7人的橡皮船，每过一次河需要花3分钟．请问：利用这条橡皮艇把全班同学都运到河对岸，最少需要多少分钟？

There are 49 students in the third grade class. Now they have to cross a river. There is only one rubber boat that can take 7 people. It takes 3 minutes to cross the river each time. I would like to ask: How many minutes will it take to transport the whole class to the other side of the river by this rubber boat?

<gadget id="calculator">7 * 2</gadget>
<output>14</output>
<gadget id="calculator">14 + 1</gadget>
<output>15</output>
<gadget id="calculator">15 * 3</gadget>
<output>45</output>
<result>45</result>


一个正方体的表面积是216dm**2，它的体积是多少．

The surface area of a cube is 216dm**2, what is its volume?

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


甲、乙两车同时从相距800千米的两地相向而行，甲车每小时行驶80千米，当甲车行驶到两地中点时，与乙车还相距100千米．求乙车的速度？

Car A and Car B are traveling toward each other at the same time from two places 800 kilometers apart. Car A travels 80 kilometers per hour. When car A reaches the midpoint of the two places, the distance between car A and car B is still 100 kilometers. Find the speed of car B?

<gadget id="calculator">800 / 2</gadget>
<output>400</output>
<gadget id="calculator">400 - 100</gadget>
<output>300</output>
<gadget id="calculator">800 / 2 / 80</gadget>
<output>5</output>
<gadget id="calculator">300 / 5</gadget>
<output>60</output>
<result>60</result>


一批梨，每筐装50千克，要装15筐，如果每筐装75千克，那么要比原来少装多少筐？

A batch of pears contains 50 kilograms in each basket, and 15 baskets are required. If each basket contains 75 kilograms, how many baskets should be filled less than the original?

<gadget id="calculator">15 / 75</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">50 * (1/5)</gadget>
<output>10</output>
<gadget id="calculator">15 - 10</gadget>
<output>5</output>
<result>5</result>


为支援灾区，兴隆小学开展捐书活动．四年级捐了120本，五年级比四年级多捐12本，六年级捐的本数是五年级的2倍，六年级捐了多少本？

In order to support the disaster area, Xinglong Primary School launched a book donation activity. The fourth grade donated 120 books, the fifth grade donated 12 more books than the fourth grade, and the sixth grade donated twice as much as the fifth grade. How many books did the sixth grade donate?

<gadget id="calculator">120 + 12</gadget>
<output>132</output>
<gadget id="calculator">132 * 2</gadget>
<output>264</output>
<result>264</result>


一辆汽车以65千米/时的速度从甲地到乙地，8小时到达．从乙地返回甲地时，因为下雨，用了10个小时．这辆汽车返回时的平均速度是多少千米/时？

A car travels from A to B at a speed of 65 km/h and arrives in 8 hours. When returning from point B to point A, it took 10 hours because of the rain. What was the average speed of the car in km/h when it returned?

<gadget id="calculator">8 / 10</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">65 * (4/5)</gadget>
<output>52</output>
<result>52</result>


小华买了61张贺卡，在2013年元旦前寄出了35张．寒假前他又买了28张贺卡，准备连同剩下的一起在春节前寄给他的好朋友们，这次他要寄出多少张贺卡？

Xiaohua bought 61 greeting cards and sent 35 before New Year's Day in 2013. Before the winter vacation, he bought another 28 greeting cards and planned to send them to his good friends together with the rest before the Spring Festival. How many greeting cards will he send this time?

<gadget id="calculator">61 - 35</gadget>
<output>26</output>
<gadget id="calculator">26 + 28</gadget>
<output>54</output>
<result>54</result>


第29届奥运会于2008年在北京举行，这一年的第一季度共有多少天．

The 29th Olympic Games was held in Beijing in 2008. How many days are there in the first quarter of this year?

<gadget id="calculator">31 * 2</gadget>
<output>62</output>
<gadget id="calculator">62 + 29</gadget>
<output>91</output>
<result>91</result>


一本书共有80页，小丽7天看完．下列说法正确的是小丽平均每天看多少页

A book has 80 pages in total, and Xiaoli finished it in 7 days. Which of the following statements is correct is how many pages Xiaoli reads on average every day

<gadget id="calculator">80 / 7</gadget>
<output>80/7 = around 11.428571</output>
<result>80/7 = around 11.428571</result>


甲步行，乙骑车从同一地点出发，沿同条公路前进．甲先出发40分钟，乙用30分钟追上，如甲先出发30分钟，乙追上甲需多少分钟．

A walks and B rides a bicycle from the same place and proceeds along the same road. A starts first for 40 minutes, and B takes 30 minutes to catch up. If A starts first for 30 minutes, how many minutes does it take for B to catch up with A?

<gadget id="calculator">30 * 30</gadget>
<output>900</output>
<gadget id="calculator">40 - 30</gadget>
<output>10</output>
<gadget id="calculator">30 + 10</gadget>
<output>40</output>
<gadget id="calculator">900 / 40</gadget>
<output>45/2 = around 22.5</output>
<result>45/2 = around 22.5</result>


梯形的下底7分米，上底8分米，高4分米，它的面积多少平方分米．

The lower base of the trapezoid is 7 decimeters, the upper base is 8 decimeters, and the height is 4 decimeters. What is its area in square decimeters?

<gadget id="calculator">7 + 8</gadget>
<output>15</output>
<gadget id="calculator">4 / 2</gadget>
<output>2</output>
<gadget id="calculator">15 * 2</gadget>
<output>30</output>
<result>30</result>


一项工程，甲、乙两队合作6天能完成(5/6)．已知甲单独做，甲完成(1/3)与已完成(1/2)所需的时间相等．那么甲单独完成这项工作需要多少天？

A project can be completed by the cooperation of teams A and B in 6 days (5/6). It is known that A works alone, and the time required for A to complete (1/3) and completed (1/2) is equal. How many days will it take A to complete the work alone?

<gadget id="calculator">3 + 2</gadget>
<output>5</output>
<gadget id="calculator">5 / 36</gadget>
<output>5/36 = around 0.138889</output>
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>
<gadget id="calculator">(5/36) * (3/5)</gadget>
<output>1/12 = around 0.083333</output>
<gadget id="calculator">1 / (1/12)</gadget>
<output>12</output>
<result>12</result>


实验小学有学生400名，其中五年级有120名，占全校人数的多少．

There are 400 students in the experimental primary school, including 120 students in the fifth grade, accounting for the number of the whole school.

<gadget id="calculator">120 / 400</gadget>
<output>3/10 = around 0.3</output>
<result>3/10 = around 0.3</result>


邮局汇款的汇率是1%，在外打工的小明爸爸给家里汇钱，一共交了50元汇费，小明的爸爸给家里汇了多少钱？

The exchange rate for remittance at the post office is 1%. Xiao Ming’s father, who is working outside, remits money to his family. The total remittance fee is 50 yuan. How much money did Xiao Ming’s father remit to his family?

<gadget id="calculator">1 / 100</gadget>
<output>1/100 = around 0.01</output>
<gadget id="calculator">50 / (1/100)</gadget>
<output>5_000</output>
<result>5_000</result>


一本故事书400页，小红两天已经读了全书的(3/5)，她第三天应从多少页读起．

A story book has 400 pages. Xiaohong has read (3/5) of the whole book in two days. How many pages should she start reading on the third day?

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>
<gadget id="calculator">400 * (3/5)</gadget>
<output>240</output>
<gadget id="calculator">240 + 1</gadget>
<output>241</output>
<result>241</result>


一个教室长8米，宽6米，高3米，要粉刷它的屋顶和墙壁，除去门窗和黑板的面积16平方米，需要粉刷的面积是多少平方米？

classroom is 8 meters long, 6 meters wide, and 3 meters high. Its roof and walls need to be painted. The area excluding doors, windows and blackboards is 16 square meters. How many square meters does it need to paint?

<gadget id="calculator">8 * 6</gadget>
<output>48</output>
<gadget id="calculator">8 * 3</gadget>
<output>24</output>
<gadget id="calculator">6 * 3</gadget>
<output>18</output>
<gadget id="calculator">24 + 18</gadget>
<output>42</output>
<gadget id="calculator">42 * 2</gadget>
<output>84</output>
<gadget id="calculator">84 - 16</gadget>
<output>68</output>
<gadget id="calculator">48 + 68</gadget>
<output>116</output>
<result>116</result>


商店按5%的税率缴纳营业税800元，则商店的营业额是多少元．

If the store pays a sales tax of 800 yuan at a tax rate of 5%, what is the turnover of the store?

<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>
<gadget id="calculator">800 / (1/20)</gadget>
<output>16_000</output>
<result>16_000</result>


一种小型电脑现在每台7800元，比原价降低了(1/5)．原价每台比现价每台多多少元？

A small computer now costs 7800 yuan each, which is (1/5) lower than the original price. How much more is the original price per unit than the current price per unit?

<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">7_800 / (4/5)</gadget>
<output>9_750</output>
<gadget id="calculator">9_750 - 7_800</gadget>
<output>1_950</output>
<result>1_950</result>


甲、乙两车分别人烟台和青岛出发，甲的速度是48千米/小时，乙的速度是52千米/小时，经过2小时相遇，烟台和青岛相距多少千米？

Cars A and B set off from Yantai and Qingdao respectively. A’s speed is 48 km/h, and B’s speed is 52 km/h. After 2 hours, how many kilometers is the distance between Yantai and Qingdao?

<gadget id="calculator">48 + 52</gadget>
<output>100</output>
<gadget id="calculator">100 * 2</gadget>
<output>200</output>
<result>200</result>


用棱长5厘米的小正方体拼成一个大正方体，至少需这样的小正方体多少块．

How many pieces of such small cubes are needed to assemble a large cube with small cubes with side lengths of 5 cm.

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


从1～9共9个数字中任取一个数字，则取出的数字为偶数的可能性为多少．

If a number is randomly selected from 9 numbers from 1 to 9, what is the probability that the selected number is an even number?

<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>
<result>4/9 = around 0.444444</result>


一个圆形水池的半径是6米，水池周围有一条2米宽的水泥路．路的面积是多少平方米？

The radius of a circular pool is 6 meters, and there is a cement road 2 meters wide around the pool. What is the area of the road in square meters?

<gadget id="calculator">6 + 2</gadget>
<output>8</output>
<gadget id="calculator">8 ** 2</gadget>
<output>64</output>
<gadget id="calculator">3.14 * 64</gadget>
<output>200.96</output>
<gadget id="calculator">6 ** 2</gadget>
<output>36</output>
<gadget id="calculator">3.14 * 36</gadget>
<output>113.04</output>
<gadget id="calculator">200.96 - 113.04</gadget>
<output>87.92</output>
<result>87.92</result>


<gadget id="calculator">6 + 12 + 18 + 24 + 30 + 36 + 42 + 48 + 54</gadget>
<output>270</output>
<gadget id="calculator">270 / 3</gadget>
<output>90</output>
<result>90</result>


张老师带着1000元钱去华大佳乐家超市买苹果，买了25箱，还剩250元．每箱苹果的批发价是多少元？

Mr. Zhang took 1,000 yuan to Huada Jialejia Supermarket to buy apples. He bought 25 boxes and left 250 yuan. How much is the wholesale price of each box of apples?

<gadget id="calculator">1_000 - 250</gadget>
<output>750</output>
<gadget id="calculator">750 / 25</gadget>
<output>30</output>
<result>30</result>


羊叔叔与牛伯伯各有一堆青草，羊叔叔每天吃5千克；牛伯伯每天吃15千克，几天后，羊叔叔的青草吃完了，牛伯伯的青草还要一天才能吃完．已知牛伯伯的青草是羊叔叔的4倍，那么，牛伯伯与羊叔叔一共有多少千克青草？

Uncle Sheep and Uncle Cow each have a pile of green grass. Uncle Sheep eats 5kg a day; Uncle Cow eats 15kg a day. It is known that Uncle Cow has four times more grass than Uncle Goat, so how many kilograms of grass do Uncle Cow and Uncle Goat have in total?

<gadget id="calculator">20 - 15</gadget>
<output>5</output>
<gadget id="calculator">15 / 5</gadget>
<output>3</output>
<gadget id="calculator">3 * 5</gadget>
<output>15</output>
<gadget id="calculator">3 * 5 * 4</gadget>
<output>60</output>
<gadget id="calculator">15 + 60</gadget>
<output>75</output>
<result>75</result>


一个圆柱的体积是3立方分米，与它等底等高的圆锥的体积是多少立方分米．

If the volume of a cylinder is 3 cubic decimeters, what is the volume of a cone with the same base and height as it?

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


老张问小李年龄，小李问老张，老张说："当你像我这么大时，咱们的年龄和是72岁；当我像你这么大时，你的年龄是我现在年龄的五分之一．"那么：老张和小李现在的年龄和是多少．

Lao Zhang asked Xiao Li's age, Xiao Li asked Lao Zhang, and Lao Zhang said: "When you were my age, our age sum was 72; when I was your age, your age was my current age." One-fifth." Then: What is the sum of the ages of Lao Zhang and Xiao Li now?

<gadget id="calculator">5 + 2</gadget>
<output>7</output>
<gadget id="calculator">7 / 5</gadget>
<output>7/5 = around 1.4</output>
<gadget id="calculator">1 + (7/5)</gadget>
<output>12/5 = around 2.4</output>
<gadget id="calculator">72 / (12/5)</gadget>
<output>30</output>
<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">30 * (3/5)</gadget>
<output>18</output>
<gadget id="calculator">30 + 18</gadget>
<output>48</output>
<result>48</result>


用0、1、2、3、4这五个数字可以组成多少个没有重复数字的五位数？

How many five-digit numbers can be formed with the five numbers 0, 1, 2, 3, and 4 without repeating numbers?

<gadget id="calculator">4 * 4 * 3 * 2 * 1</gadget>
<output>96</output>
<result>96</result>


There is a series of scores arranged as follows: (1/3), (1/2), (5/9), (7/12), (3/5), (11/18)..., then the 100th number in this column what is the number

<gadget id="calculator">100 - 1</gadget>
<output>99</output>
<gadget id="calculator">99 * 2</gadget>
<output>198</output>
<gadget id="calculator">1 + 198</gadget>
<output>199</output>
<gadget id="calculator">99 * 3</gadget>
<output>297</output>
<gadget id="calculator">3 + 297</gadget>
<output>300</output>
<gadget id="calculator">199 / 300</gadget>
<output>199/300 = around 0.663333</output>
<result>199/300 = around 0.663333</result>


半圆形纸片周长10.28dm，它的面积是多少？

The perimeter of a semicircular piece of paper is 10.28dm, what is its area?

<gadget id="calculator">10.28 / 5.14</gadget>
<output>2</output>
<gadget id="calculator">2 ** 2</gadget>
<output>4</output>
<gadget id="calculator">4 / 2</gadget>
<output>2</output>
<gadget id="calculator">3.14 * 2</gadget>
<output>6.28</output>
<result>6.28</result>


五4班某天只有36人到校，出勤率是90%，没到的有多少人．

Only 36 people from Class 5 and 4 came to school on a certain day, and the attendance rate was 90%. How many people did not show up?

<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>
<gadget id="calculator">36 / (9/10)</gadget>
<output>40</output>
<gadget id="calculator">40 - 36</gadget>
<output>4</output>
<result>4</result>


一个分数，如果分子加3，分数值就是自然数1，它与二分之一相等，求这个分数是多少？

A fraction, if 3 is added to the numerator, the fraction value is the natural number 1, which is equal to 1/2, what is the fraction?

<gadget id="calculator">2 - 1</gadget>
<output>1</output>
<gadget id="calculator">3 / 1</gadget>
<output>3</output>
<gadget id="calculator">3 + 3</gadget>
<output>6</output>
<gadget id="calculator">3 / 1 / 6</gadget>
<output>1/2 = around 0.5</output>
<result>1/2 = around 0.5</result>


一只空的小水桶，倒进6碗水后，水桶和水的重量是2000克，倒进8碗水，水桶和水的总重量为2600克，小水桶重多少克．

An empty small bucket, after pouring 6 bowls of water, the weight of the bucket and water is 2000 grams, pouring 8 bowls of water, the total weight of the bucket and water is 2600 grams, what is the weight of the small bucket in grams?

<gadget id="calculator">2_600 - 2_000</gadget>
<output>600</output>
<gadget id="calculator">8 - 6</gadget>
<output>2</output>
<gadget id="calculator">600 / 2</gadget>
<output>300</output>
<gadget id="calculator">300 * 6</gadget>
<output>1_800</output>
<gadget id="calculator">2_000 - 1_800</gadget>
<output>200</output>
<result>200</result>


正午时小丽量得自己的影子有40cm，同时它量得身旁一棵树的影长是1m，已知小丽的身高是160cm，那么这棵树高多少m．

At noon, Xiaoli measures her own shadow to be 40cm, and at the same time, she measures the shadow length of a tree beside her, which is 1m. It is known that Xiaoli's height is 160cm, so how tall is the tree in m?

<gadget id="calculator">160 / 40</gadget>
<output>4</output>
<result>4</result>


甲、乙两地的路程是120千米，如果把它画在比例尺是1：1000000的地图上，应画多少厘米．

The distance between A and B is 120 kilometers. If it is drawn on a map with a scale of 1:1,000,000, how many centimeters should it be drawn?


五年级同学参加大课间操练，12人为一列或18人为一列都正好能分完，如果同学的人数在200人以内，这次参加大课间操练的同学最多是多少人？

The fifth grade students participate in the big break exercise, and 12 people or 18 people can be divided into a row. If the number of students is less than 200, how many students can participate in the big break exercise this time?

<gadget id="calculator">36 * 5</gadget>
<output>180</output>
<result>180</result>


<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>
<gadget id="calculator">1.4 * (3/2)</gadget>
<output>2.1</output>
<result>2.1</result>


<gadget id="calculator">864 / 24</gadget>
<output>36</output>
<result>36</result>


时钟时针在12时上重合，再过12小时还有多少次重合．

If the hour hand of the clock coincides at 12 o'clock, how many times will there be coincidences in 12 hours?

<gadget id="calculator">12 - 1</gadget>
<output>11</output>
<result>11</result>


扇形面积是314平方厘米，扇形所在圆的面积是1256平方厘米，这个扇形的圆心角是多少度？

The area of the fan is 314 square centimeters, and the area of the circle where the fan is located is 1256 square centimeters. What is the central angle of the fan?

<gadget id="calculator">314 / 1_256</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">(1/4) * 360</gadget>
<output>90</output>
<result>90</result>


0.{_{1}**(.)}234{_{5}**(.)} and 0.{_{2}**(.)}00231{_{5}**(.) } What is the number of digits after the decimal point of the two recurring decimals, and the number on this digit that appears at the same time for the first time is 5.

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


三角形的底是3米，高是4米，面积是多少平方米．

The base of the triangle is 3 meters, the height is 4 meters, what is the area in square meters?

<gadget id="calculator">4 / 2</gadget>
<output>2</output>
<gadget id="calculator">3 * 2</gadget>
<output>6</output>
<result>6</result>


一个长方体铁盒，长25厘米，宽20厘米，高15厘米．做这个铁盒至少要用多少平方厘米的铁皮？

A cuboid iron box is 25 cm long, 20 cm wide, and 15 cm high. How many square centimeters of iron sheet should be used to make this iron box?

<gadget id="calculator">25 * 20 * 2</gadget>
<output>1_000</output>
<gadget id="calculator">25 * 15 * 2</gadget>
<output>750</output>
<gadget id="calculator">20 * 15 * 2</gadget>
<output>600</output>
<gadget id="calculator">1_000 + 750 + 600</gadget>
<output>2_350</output>
<result>2_350</result>


明明看一本故事书，第一天看了全书的(1/5)，第二天看了全书的(1/4)，他发现第二天比第一天多看了8页，这两天共看了多少页？

Obviously reading a story book, he read (1/5) of the whole book on the first day and (1/4) of the whole book on the second day. He found that he read 8 pages more on the second day than on the first day. How many pages did you read in total?

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">(1/4) - (1/5)</gadget>
<output>1/20 = around 0.05</output>
<gadget id="calculator">8 / (1/20)</gadget>
<output>160</output>
<gadget id="calculator">(1/4) + (1/5)</gadget>
<output>9/20 = around 0.45</output>
<gadget id="calculator">160 * (9/20)</gadget>
<output>72</output>
<result>72</result>


<gadget id="calculator">5 / 12</gadget>
<output>5/12 = around 0.416667</output>
<gadget id="calculator">10 / 9</gadget>
<output>10/9 = around 1.111111</output>
<gadget id="calculator">(5/12) / (10/9)</gadget>
<output>3/8 = around 0.375</output>
<gadget id="calculator">13 / 8</gadget>
<output>13/8 = around 1.625</output>
<gadget id="calculator">6 - (3/8) - (13/8)</gadget>
<output>4</output>
<result>4</result>


每3个空瓶可以换一瓶汽水，有人买了27瓶汽水，喝完后又用空瓶换汽水，那么，他最多喝多少瓶汽水．

Every 3 empty bottles can be exchanged for a bottle of soda. Someone bought 27 bottles of soda, and then exchanged the empty bottle for soda after drinking. Then, how many bottles of soda can he drink at most?

<gadget id="calculator">27 / 3</gadget>
<output>9</output>
<gadget id="calculator">27 / 3 / 3</gadget>
<output>3</output>
<gadget id="calculator">27 + 9 + 3 + 1</gadget>
<output>40</output>
<result>40</result>


小华用5天看一本书的(3/4)，他平均每天看这本书的几分之几？

Xiaohua spends 5 days reading a book (3/4), what percentage of this book does he read on average every day?

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">(3/4) / 5</gadget>
<output>3/20 = around 0.15</output>
<result>3/20 = around 0.15</result>


一个小数，小数点向右移动三位后，再向左移动两位是8.27，原来这个小数是多少．

For a decimal, after the decimal point moves three places to the right, and then moves two places to the left, it is 8.27. What is this decimal?

<gadget id="calculator">8.27 / 10</gadget>
<output>0.827</output>
<result>0.827</result>


埃及最大的金字塔，由于受风雨的侵蚀，现在的高度只有140米，比建成时低了(1/21)，这座金字塔建成时高多少米？(列方程解答)

The largest pyramid in Egypt, due to erosion by wind and rain, is now only 140 meters high, which is 1/21 lower than when it was built. How many meters was this pyramid when it was built? (column equation solution)

<gadget id="calculator">1 / 21</gadget>
<output>1/21 = around 0.047619</output>
<gadget id="calculator">1 - (1/21)</gadget>
<output>20/21 = around 0.952381</output>
<gadget id="calculator">140 / (20/21)</gadget>
<output>147</output>
<result>147</result>


甲、乙两辆汽车从A、B两地同时相向开出，出发后2小时，两车相距141公里；出发后5小时，两车相遇．A、B两地相距多少公里．

Two cars, A and B, start from A and B at the same time. 2 hours after departure, the distance between the two cars is 141 kilometers; 5 hours after departure, the two cars meet. How many kilometers are there between A and B?

<gadget id="calculator">5 - 2</gadget>
<output>3</output>
<gadget id="calculator">141 / 3</gadget>
<output>47</output>
<gadget id="calculator">47 * 5</gadget>
<output>235</output>
<result>235</result>


比一个数的60%多4的数是22，这个数是多少？

The number 4 more than 60% of a number is 22. What is this number?

<gadget id="calculator">22 - 4</gadget>
<output>18</output>
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>
<gadget id="calculator">18 / (3/5)</gadget>
<output>30</output>
<result>30</result>


2016年第31届奥运会将在巴西举行，这一年的第一季度有多少天．

The 31st Olympic Games will be held in Brazil in 2016. How many days are there in the first quarter of this year?

<gadget id="calculator">31 + 29 + 31</gadget>
<output>91</output>
<result>91</result>


冷饮店平均每天能卖出68盒果味冰点，每盒9元，一星期果味冰点可以卖出多少钱？

The cold drink shop can sell 68 boxes of fruit-flavored ice cream every day on average, and each box is 9 yuan. How much fruit-flavored ice cream can be sold in a week?

<gadget id="calculator">68 * 9 * 7</gadget>
<output>4_284</output>
<result>4_284</result>


一个等腰三角形的底角是56°，它的顶角是多少度？

The base angle of an isosceles triangle is 56°, what is the apex angle?

<gadget id="calculator">56 * 2</gadget>
<output>112</output>
<gadget id="calculator">180 - 112</gadget>
<output>68</output>
<result>68</result>


一列火车3小时行驶318.9千米，汽车4小时行驶390千米．汽车每小时比火车少行驶多少千米？

A train travels 318.9 kilometers in 3 hours, and a car travels 390 kilometers in 4 hours. How much less miles per hour does the car travel than the train?

<gadget id="calculator">318.9 / 3</gadget>
<output>106.3</output>
<gadget id="calculator">390 / 4</gadget>
<output>195/2 = around 97.5</output>
<gadget id="calculator">106.3 - (195/2)</gadget>
<output>8.8</output>
<result>8.8</result>


口袋里装有8个乒乓球，要使口袋中摸出白球的可能性是(1/2)，口袋里应有多少个白球．

There are 8 ping pong balls in the pocket, the probability of finding a white ball in the pocket is (1/2), how many white balls should be in the pocket.

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


我校图书室有上下两层书架，管理员从上层取15本图书放入下层，这时下层图书是上层图书数量的40%，已知下层原有图书85本，求上层原有图书多少本？

The library of our school has upper and lower bookshelves. The administrator takes 15 books from the upper level and puts them in the lower level. At this time, the number of books in the lower level is 40% of the number of books in the upper level. It is known that there are 85 original books in the lower level. Find the number of original books in the upper level. ?

<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">15 * (2/5)</gadget>
<output>6</output>
<gadget id="calculator">6 + 85 + 15</gadget>
<output>106</output>
<gadget id="calculator">106 / (2/5)</gadget>
<output>265</output>
<result>265</result>


一根铁丝长(3/4)米，比另一根长短(3/5)米，另一根长多少米．

One wire is (3/4) meters long and (3/5) meters shorter than the other wire. How long is the other wire in meters?

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>
<gadget id="calculator">(3/4) + (3/5)</gadget>
<output>27/20 = around 1.35</output>
<result>27/20 = around 1.35</result>


<gadget id="calculator">10 - 8</gadget>
<output>2</output>
<gadget id="calculator">2 / 10</gadget>
<output>1/5 = around 0.2</output>
<result>1/5 = around 0.2</result>


书架上有5本不同的故事书，7本不同的连环画，4本不同的科技书，从中任选1本，共有多少种不同的选法．

There are 5 different story books, 7 different comic books, and 4 different science and technology books on the bookshelf. Choose one of them. How many different ways are there?

<gadget id="calculator">5 + 7 + 4</gadget>
<output>16</output>
<result>16</result>


三头牛和八只羊一天共吃青草93斤，五头牛和十五只羊一天共吃青草165斤，一头牛和一只羊一天共吃青草多少斤？

Three cows and eight sheep eat a total of 93 catties of grass a day, five cows and fifteen sheep eat a total of 165 catties of grass a day, and how many catties of grass do one cow and one sheep eat a day?

<gadget id="calculator">165 * 3</gadget>
<output>495</output>
<gadget id="calculator">93 * 5</gadget>
<output>465</output>
<gadget id="calculator">495 - 465</gadget>
<output>30</output>
<gadget id="calculator">15 * 3</gadget>
<output>45</output>
<gadget id="calculator">8 * 5</gadget>
<output>40</output>
<gadget id="calculator">45 - 40</gadget>
<output>5</output>
<gadget id="calculator">30 / 5</gadget>
<output>6</output>
<gadget id="calculator">6 * 8</gadget>
<output>48</output>
<gadget id="calculator">93 - 48</gadget>
<output>45</output>
<gadget id="calculator">45 / 3</gadget>
<output>15</output>
<gadget id="calculator">6 + 15</gadget>
<output>21</output>
<result>21</result>


欣欣服装厂八月份计划加工西服4500套，实际上半月完成计划的(5/9)，下半月完成计划的(2/3)．这个月实际加工西服多少件？

Xinxin Garment Factory plans to process 4,500 suits in August, but actually completed the plan in half a month (5/9), and completed the plan in the second half of the month (2/3). How many suits are actually processed this month?

<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>
<gadget id="calculator">4_500 * (5/9)</gadget>
<output>2_500</output>
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>
<gadget id="calculator">4_500 * (2/3)</gadget>
<output>3_000</output>
<gadget id="calculator">2_500 + 3_000</gadget>
<output>5_500</output>
<result>5_500</result>


用4、5、9三个数字，分别组成最大和最小的三位数，它们的差是多少

Use the three numbers 4, 5, and 9 to form the largest and smallest three-digit numbers respectively. What is the difference between them?

<gadget id="calculator">954 - 459</gadget>
<output>495</output>
<result>495</result>


学校买来20个足球，比买来篮球的个数多25%．买来篮球多少个？

The school bought 20 footballs, 25% more than the number of basketballs it bought. How many basketballs did you buy?

<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>
<gadget id="calculator">20 / (5/4)</gadget>
<output>16</output>
<result>16</result>


一个数的(3/4)加上(6/7)除以(5/14)的商，和为6，这个数是多少？

The quotient of (3/4) plus (6/7) divided by (5/14) of a number is 6. What is this number?

<gadget id="calculator">5 / 14</gadget>
<output>5/14 = around 0.357143</output>
<gadget id="calculator">6 * (5/14)</gadget>
<output>15/7 = around 2.142857</output>
<gadget id="calculator">6 / 7</gadget>
<output>6/7 = around 0.857143</output>
<gadget id="calculator">(15/7) - (6/7)</gadget>
<output>9/7 = around 1.285714</output>
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">(3/4) * (5/14)</gadget>
<output>15/56 = around 0.267857</output>
<gadget id="calculator">(9/7) / (15/56)</gadget>
<output>24/5 = around 4.8</output>
<result>24/5 = around 4.8</result>


被减数、减数、差加起来和是400，被减数是多少．

The sum of the minuend, the subtrahend and the difference is 400. What is the minuend?

<gadget id="calculator">400 / 2</gadget>
<output>200</output>
<result>200</result>


一个等腰三角形，底角和顶角的度数比是1：3．它的一个底角是多少度？

In an isosceles triangle, the ratio of the base angle to the apex angle is 1:3. What is its base angle?

<gadget id="calculator">1 + 1 + 3</gadget>
<output>5</output>
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">180 * (1/5)</gadget>
<output>36</output>
<result>36</result>


李老师为某杂志社审稿，得到审稿费2000元，为此她需要缴纳3%的个人所得税．她应缴纳个人所得税多少元．

Ms. Li reviewed manuscripts for a magazine and received a review fee of 2,000 yuan, for which she had to pay 3% personal income tax. How much should she pay personal income tax?

<gadget id="calculator">3 / 100</gadget>
<output>3/100 = around 0.03</output>
<gadget id="calculator">2_000 * (3/100)</gadget>
<output>60</output>
<result>60</result>


三角形两边长分别是4dm和7dm，第三条边可能是多少dm．

The lengths of the two sides of the triangle are 4dm and 7dm respectively, what is the possible length of the third side in dm.


一个长方体三个侧面面积分别是2、3、6平方厘米，这个长方体的体积是多少立方厘米．

The areas of the three sides of a cuboid are 2, 3, and 6 square centimeters respectively. What is the volume of the cuboid in cubic centimeters?


把一根长2米的圆柱形木料截成三段，表面积增加了1.2平方米，这根木料的体积是多少立方米．

Cut a cylindrical piece of wood with a length of 2 meters into three sections, and the surface area increases by 1.2 square meters. What is the volume of this piece of wood in cubic meters?

<gadget id="calculator">1.2 / 4</gadget>
<output>0.3</output>
<gadget id="calculator">0.3 * 2</gadget>
<output>0.6</output>
<result>0.6</result>


学校健身室有16台跑步机，比扩胸机多(1/7)，扩胸机有多少台？

There are 16 treadmills in the school fitness room, which is 1/7 more than chest expanding machines. How many chest expanding machines are there?

<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>
<gadget id="calculator">1 + (1/7)</gadget>
<output>8/7 = around 1.142857</output>
<gadget id="calculator">16 / (8/7)</gadget>
<output>14</output>
<result>14</result>


六1班有男生25人，比女生多(1/4)，六1班共有多少人．

There are 25 boys in Class 1, which is 1/4 more than girls. How many people are there in Class 1?

<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">25 / (5/4)</gadget>
<output>20</output>
<gadget id="calculator">25 + 20</gadget>
<output>45</output>
<result>45</result>


一本书打七五折后的售价是27元，原价是多少？

A book is priced at 27 yuan after a 25% discount. What is the original price?

<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">27 / (3/4)</gadget>
<output>36</output>
<result>36</result>


一座楼房每上一层要走16个台阶，到小英家要走64个台阶，他家住多少楼？

There are 16 steps to go up each floor of a building, and 64 steps to Xiaoying's house. How many floors does he live in?

<gadget id="calculator">64 / 16</gadget>
<output>4</output>
<gadget id="calculator">4 + 1</gadget>
<output>5</output>
<result>5</result>


小红看一本书，小红第一天看了全书的(2/5)，第二天看了全书的(3/10)，还剩72页．这本书一共多少页？

Xiaohong reads a book. Xiaohong reads the whole book (2/5) on the first day, and reads the whole book (3/10) on the second day. There are 72 pages left. How many pages are there in this book?

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>
<gadget id="calculator">1 - (2/5) - (3/10)</gadget>
<output>3/10 = around 0.3</output>
<gadget id="calculator">72 / (3/10)</gadget>
<output>240</output>
<result>240</result>


一个长方体的长、宽、高分别是6厘米，4厘米，0.3分米，它的表面积是多少平方厘米．

If the length, width, and height of a cuboid are 6 cm, 4 cm, and 0.3 decimeters, what is its surface area in square centimeters?

<gadget id="calculator">6 * 4</gadget>
<output>24</output>
<gadget id="calculator">6 * 0.3 * 10</gadget>
<output>18</output>
<gadget id="calculator">4 * 0.3 * 10</gadget>
<output>12</output>
<gadget id="calculator">24 + 18 + 12</gadget>
<output>54</output>
<gadget id="calculator">54 * 2</gadget>
<output>108</output>
<result>108</result>


一列火车从一条645米长的隧道通过，这列火车长75米，每秒行25米．这列火车几秒可以完全通过隧道？

train passes through a 645-meter-long tunnel. The train is 75 meters long and travels 25 meters per second. How many seconds can this train pass through the tunnel completely?

<gadget id="calculator">645 + 75</gadget>
<output>720</output>
<gadget id="calculator">720 / 25</gadget>
<output>144/5 = around 28.8</output>
<result>144/5 = around 28.8</result>


一个无盖的长方体玻璃鱼缸，长5分米，宽3分米，高4.5分米．制作这个鱼缸至少需要玻璃多少平方分米？

A cuboid glass fish tank without a cover is 5 decimeters long, 3 decimeters wide, and 4.5 decimeters high. What is the minimum square decimeter of glass needed to make this fish tank?

<gadget id="calculator">5 * 3</gadget>
<output>15</output>
<gadget id="calculator">5 * 4.5</gadget>
<output>22.5</output>
<gadget id="calculator">3 * 4.5</gadget>
<output>13.5</output>
<gadget id="calculator">22.5 + 13.5</gadget>
<output>36</output>
<gadget id="calculator">36 * 2</gadget>
<output>72</output>
<gadget id="calculator">15 + 72</gadget>
<output>87</output>
<result>87</result>


某车间有一天的出勤率是98%，有一人病假，这个车间共有多少人．

The attendance rate of a workshop is 98% one day, and one person is on sick leave. How many people are there in this workshop?

<gadget id="calculator">98 / 100</gadget>
<output>49/50 = around 0.98</output>
<gadget id="calculator">1 - (49/50)</gadget>
<output>1/50 = around 0.02</output>
<gadget id="calculator">1 / (1/50)</gadget>
<output>50</output>
<result>50</result>


已知甲数=2*3*3，乙数=2*3*5，那么甲数与乙数的最小公倍数是：多少．

It is known that number A=2*3*3, number B=2*3*5, then the least common multiple of number A and number B is: how much.

<gadget id="calculator">2 * 3 * 3 * 5</gadget>
<output>90</output>
<result>90</result>


一个圆柱的体积是25.12立方分米，底面积是31.4平方分米，高是多少dm．

The volume of a cylinder is 25.12 cubic decimeters, the area of the bottom is 31.4 square decimeters, what is the height in dm.

<gadget id="calculator">25.12 / 31.4</gadget>
<output>0.8</output>
<result>0.8</result>


筑路队第一个星期修路380米，第二个星期修的是第一个星期的3倍．第二个星期比第一个星期多修几米？(你有不同的解法吗)

The road construction team built 380 meters of road in the first week, and three times as much in the second week. How many meters more will be repaired in the second week than in the first week? (do you have a different solution)

<gadget id="calculator">380 * 3</gadget>
<output>1_140</output>
<gadget id="calculator">1_140 - 380</gadget>
<output>760</output>
<result>760</result>


有一张长方形彩纸，长54厘米，宽24厘米，把它剪成同样大小的小正方形，这些小正方形的边长最大是多少厘米．

There is a piece of rectangular colored paper with a length of 54 cm and a width of 24 cm. Cut it into small squares of the same size. What is the maximum side length of these small squares in cm?

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


一个自然数与它自己相加、相减、相除所得的和、差、商三个数加起来等于21，这个自然数是多少．

The sum, difference, and quotient obtained by adding, subtracting, and dividing a natural number with itself equals 21. What is this natural number?

<gadget id="calculator">21 - 1</gadget>
<output>20</output>
<gadget id="calculator">20 / 2</gadget>
<output>10</output>
<result>10</result>


一个平行四边形的底是15cm，高是4cm，它的面积是多少cm**2．

The base of a parallelogram is 15cm, the height is 4cm, what is its area in cm**2.

<gadget id="calculator">4 * 15</gadget>
<output>60</output>
<result>60</result>


国际上有一种通用的表示日期的方法，例如：用950724这样一个六位数表示1995年7月24日．用这种方法表示1991年全年的日期时，六位数字都不相同的日期共有多少天．

There is a general method of expressing the date in the world, for example: use a six-digit number such as 950724 to express July 24, 1995. When this method is used to express the date of the whole year of 1991, how many days are there in the date with six digits that are different.

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


一台电冰箱原价3200元，第一次降价10%，第二次降价(1/8)，现在买一台电冰箱要多少钱？

The original price of a refrigerator is 3,200 yuan. The first price is reduced by 10%, and the second price is reduced by 1/8. How much does it cost to buy a refrigerator now?

<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">1 / 8</gadget>
<output>1/8 = around 0.125</output>
<gadget id="calculator">1 - (1/8)</gadget>
<output>7/8 = around 0.875</output>
<gadget id="calculator">3_200 * (9/10) * (7/8)</gadget>
<output>2_520</output>
<result>2_520</result>


一个三位数是13的倍数，并且它的数字和也是13的倍数，那么这个三位数最小是多少．

A three-digit number is a multiple of 13, and the sum of its numbers is also a multiple of 13, so what is the smallest three-digit number?

<gadget id="calculator">13 * 19</gadget>
<output>247</output>
<result>247</result>


一个数除以9，如果有余数，余数最大是多少．

When a number is divided by 9, if there is a remainder, what is the largest remainder?

<gadget id="calculator">9 - 1</gadget>
<output>8</output>
<result>8</result>


甲乙两工人生产同样的零件，原计划每天生产700个．由于改进技术，甲每天多生产100个，乙的产量提高了1倍，这样二人一天共生产1020个．甲原计划生产多少个零件．

Two workers, A and B, produce the same parts, originally planned to produce 700 per day. Due to the improvement of technology, A can produce 100 more per day, and B’s output can be doubled, so that the two can produce 1020 per day. How many parts did A originally plan to produce.

<gadget id="calculator">1_020 - 700 - 100</gadget>
<output>220</output>
<gadget id="calculator">700 - 220</gadget>
<output>480</output>
<result>480</result>


一根绳子长(3/4)米，先剪去它的(1/3)，再把剩下的剪去(1/3)，再把剩下的剪去(1/3)，现在剩下的部分长多少米？

rope is (3/4) meters long, first cut off (1/3), then cut off the rest (1/3), and then cut off the rest (1/3), now the remaining How long is the lower part?

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">(3/4) * (1/3)</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">(3/4) - (1/4)</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">(1/2) * (1/3)</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">(3/4) - (1/4) - (1/6)</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">(1/3) * (1/3)</gadget>
<output>1/9 = around 0.111111</output>
<gadget id="calculator">(3/4) - (1/4) - (1/6) - (1/9)</gadget>
<output>2/9 = around 0.222222</output>
<result>2/9 = around 0.222222</result>


李伯伯家的柿子树收获了8筐柿子，一共卖了880元．共248千克．平均每筐多少千克？

The persimmon tree of Uncle Li's family harvested 8 baskets of persimmons, which were sold for a total of 880 yuan. A total of 248 kg. How many kilograms per basket on average?

<gadget id="calculator">248 / 8</gadget>
<output>31</output>
<result>31</result>


某商品在季节来临之前，将新产品提价20%销售，即按原价的多少销售

Before the season of a certain commodity, the price of the new product will be increased by 20%, that is, it will be sold at the original price

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>
<result>6/5 = around 1.2</result>


一个平行四边形的底是15米，高是18米，一个与它等底等高的三角形的面积是多少平方米．

The base of a parallelogram is 15 meters and the height is 18 meters. What is the area of a triangle with the same base and height in square meters?

<gadget id="calculator">18 / 2</gadget>
<output>9</output>
<gadget id="calculator">15 * 9</gadget>
<output>135</output>
<result>135</result>


马小虎在计算乘法时，把一个因数72看作78，结果算出的积比原来的积多了780，正确的积是多少．

When Ma Xiaohu calculated the multiplication, he regarded a factor of 72 as 78, and the calculated product was 780 more than the original product. What is the correct product?

<gadget id="calculator">78 - 72</gadget>
<output>6</output>
<gadget id="calculator">780 / 6</gadget>
<output>130</output>
<gadget id="calculator">130 * 72</gadget>
<output>9_360</output>
<result>9_360</result>


一列快车和一列慢车，同时从甲、乙两站出发，相向而行，经过6小时相遇，相遇后快车继续行驶3小时后到达乙站．已知慢车每小时行45千米，甲、乙两站相距多少千米．

An express train and a slow train depart from Station A and Station B at the same time, travel towards each other, and meet each other after 6 hours. After meeting, the express train continues to drive for 3 hours and arrives at Station B. It is known that the slow train travels 45 kilometers per hour, how many kilometers are the distance between A and B stations?

<gadget id="calculator">6 / 3</gadget>
<output>2</output>
<gadget id="calculator">45 * 2</gadget>
<output>90</output>
<gadget id="calculator">6 + 3</gadget>
<output>9</output>
<gadget id="calculator">90 * 9</gadget>
<output>810</output>
<result>810</result>


一个底面积为30dm的长方体水桶中，水的深度是3dm，将这些水全部倒入棱长为5dm的正方体容器中，这时水深多少分米？

In a cuboid bucket with a bottom area of 30dm, the water depth is 3dm. Pour all the water into a cube container with a side length of 5dm. How many decimeters is the water depth at this time?

<gadget id="calculator">30 * 3</gadget>
<output>90</output>
<gadget id="calculator">5 * 5</gadget>
<output>25</output>
<gadget id="calculator">90 / 25</gadget>
<output>18/5 = around 3.6</output>
<result>18/5 = around 3.6</result>


乐乐期末考试语文、数学、科学的平均成绩是85分，英语成绩公布后，他的平均成绩提高了2分．乐乐的英语成绩是多少分？

Lele's average score in Chinese, mathematics, and science in the final exam was 85. After the English score was announced, his average score increased by 2 points. What is Lele's English score?

<gadget id="calculator">85 + 2</gadget>
<output>87</output>
<gadget id="calculator">87 * 4</gadget>
<output>348</output>
<gadget id="calculator">85 * 3</gadget>
<output>255</output>
<gadget id="calculator">348 - 255</gadget>
<output>93</output>
<result>93</result>


为了鼓励人们节约用水，某市宣布了居民用水收费新标准，每户每月的基本用水量为20立方米，每立方米收费2.1元．超出基本用水量1-10立方米的，超出基本用水量的部分按每立方米2.9元收费，超出基本用水量10立方米以上的，超出基本用水量10立方米以上的部分按每立方米3.75元收费．实施新的收费标准后，这个市日平均节水6万立方米．如果按每立方米自来水生产成本1.2元计算，这个市1年(365天)因节水可节约开支多少万元？

In order to encourage people to save water, a certain city announced a new standard of water charges for residents. The basic water consumption per household per month is 20 cubic meters, and the fee is 2.1 yuan per cubic meter. If the basic water consumption is 1-10 cubic meters, the part exceeding the basic water consumption will be charged at 2.9 yuan per cubic meter; if the basic water consumption is more than 10 cubic meters, the part exceeding the basic water consumption will be charged at 3.75 yuan per cubic meter Yuan fee. After implementing the new charging standard, the city saves an average of 60,000 cubic meters of water per day. If the production cost of tap water is 1.2 yuan per cubic meter, how much yuan can the city save due to water saving in one year (365 days)?

<gadget id="calculator">21_900_000 * 1.2</gadget>
<output>26_280_000</output>
<gadget id="calculator">26_280_000 / 10_000</gadget>
<output>2_628</output>
<result>2_628</result>


一根横截面为正方形，长2m的长方体木料，把它锯成3根小长方体木料，表面积增加了36dm**2，原来长方体木料的表面积是多少平方分米．

A cuboid wood with a square cross section and a length of 2m is sawn into 3 small cuboid woods, and the surface area increases by 36dm**2. What is the surface area of the original cuboid wood in square decimeters?

<gadget id="calculator">36 / 4</gadget>
<output>9</output>
<gadget id="calculator">9 * 2</gadget>
<output>18</output>
<gadget id="calculator">3 * 2 * 10 * 4</gadget>
<output>240</output>
<gadget id="calculator">18 + 240</gadget>
<output>258</output>
<result>258</result>


把84个小正方体木块拼成一个长方体，有哪几种拼法？

How many ways to spell 84 small cubes into a cuboid?


<gadget id="calculator">1 + 20</gadget>
<output>21</output>
<gadget id="calculator">20 / 2</gadget>
<output>10</output>
<gadget id="calculator">21 * 10</gadget>
<output>210</output>
<result>210</result>


含盐是12%的盐水5千克加入多少千克水后，使盐水含盐量降为8%．

The salt content is 12% brine, how many kilograms of water is added to 5 kg of brine to reduce the salt content of brine to 8%.

<gadget id="calculator">12 / 100</gadget>
<output>3/25 = around 0.12</output>
<gadget id="calculator">8 / 100</gadget>
<output>2/25 = around 0.08</output>
<gadget id="calculator">(3/25) / (2/25)</gadget>
<output>3/2 = around 1.5</output>
<gadget id="calculator">5 * (3/2)</gadget>
<output>15/2 = around 7.5</output>
<gadget id="calculator">(15/2) - 6</gadget>
<output>3/2 = around 1.5</output>
<result>3/2 = around 1.5</result>


盐水中有3克盐和100克水，如果再加2克盐，那么盐占盐水的多少．

There are 3 grams of salt and 100 grams of water in brine. If 2 grams of salt are added, how much salt will account for the brine.

<gadget id="calculator">3 + 2</gadget>
<output>5</output>
<gadget id="calculator">3 + 2 + 100</gadget>
<output>105</output>
<gadget id="calculator">5 / 105</gadget>
<output>1/21 = around 0.047619</output>
<result>1/21 = around 0.047619</result>


一件衣服原价是788元，现在八五折优惠，每件便宜多少元．

The original price of a piece of clothing is 788 yuan, now it is 15% off, how much is each piece cheaper?

<gadget id="calculator">85 / 100</gadget>
<output>17/20 = around 0.85</output>
<gadget id="calculator">788 * (17/20)</gadget>
<output>3_349/5 = around 669.8</output>
<gadget id="calculator">788 - (3_349/5)</gadget>
<output>591/5 = around 118.2</output>
<result>591/5 = around 118.2</result>


每两个路灯之间的距离是35米，那么第1个路灯7个路灯相距多少米．

The distance between every two street lights is 35 meters, so how many meters are the distance between the first street light and the 7 street lights?

<gadget id="calculator">7 - 1</gadget>
<output>6</output>
<gadget id="calculator">6 * 35</gadget>
<output>210</output>
<result>210</result>


<gadget id="calculator">5 * 4</gadget>
<output>20</output>
<gadget id="calculator">20 + 7</gadget>
<output>27</output>
<result>27</result>


A城市的出租车在3公里以内收费10元，超过3公里后，每公里加收1.60元．李师傅乘坐了14公里，要花多少钱？

A taxi in city A charges 10 yuan within 3 kilometers, and an additional 1.60 yuan per kilometer after 3 kilometers. How much does it cost for Master Li to ride for 14 kilometers?

<gadget id="calculator">14 - 3</gadget>
<output>11</output>
<gadget id="calculator">11 * 1.6</gadget>
<output>17.6</output>
<gadget id="calculator">10 + 17.6</gadget>
<output>27.6</output>
<result>27.6</result>


仓库有面粉120袋，第一天运走了全部的(1/4)，第二天运走了全部的(2/3)，还剩下多少袋？

There are 120 bags of flour in the warehouse, all (1/4) are shipped out on the first day, and all (2/3) are shipped out on the second day, how many bags are left?

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>
<gadget id="calculator">1 - (1/4) - (2/3)</gadget>
<output>1/12 = around 0.083333</output>
<gadget id="calculator">120 * (1/12)</gadget>
<output>10</output>
<result>10</result>


一群学生，人数不小于30人且不大于50人，他们围成一个圆圈，由某个人开始从1连续报数．如果报30和198的是同一个人，则这群学生共有多少人．

A group of students, the number is not less than 30 and not more than 50 people, they form a circle, starting from a certain person to count continuously from 1. If the same person reported 30 and 198, how many people are there in this group of students?

<gadget id="calculator">3 * 2 * 7</gadget>
<output>42</output>
<result>42</result>


一个分数，分子分母的和是29，如果分子、分母各减去7后，分母是分子的4倍，原来的分数是多少．

For a fraction, the sum of the numerator and denominator is 29. If 7 is subtracted from the numerator and denominator, the denominator is 4 times the numerator. What is the original fraction?

<gadget id="calculator">2 * 7</gadget>
<output>14</output>
<gadget id="calculator">29 - 14</gadget>
<output>15</output>
<gadget id="calculator">15 / 5</gadget>
<output>3</output>
<gadget id="calculator">3 + 7</gadget>
<output>10</output>
<gadget id="calculator">3 * 4</gadget>
<output>12</output>
<gadget id="calculator">12 + 7</gadget>
<output>19</output>
<gadget id="calculator">10 / 19</gadget>
<output>10/19 = around 0.526316</output>
<result>10/19 = around 0.526316</result>


方程x/8=28中未知数x的值是多少．

What is the value of the unknown x in the equation x/8=28.

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>
<gadget id="calculator">28 / (1/8)</gadget>
<output>224</output>
<result>224</result>


邮局准备做一个长5分米、宽4分米、高8分米的铁皮邮箱，至少需用多少平方分米的铁皮？

The post office is going to make a metal mailbox with a length of 5 decimeters, a width of 4 decimeters, and a height of 8 decimeters. How many square decimeters of iron sheets are needed at least?

<gadget id="calculator">5 * 4</gadget>
<output>20</output>
<gadget id="calculator">5 * 8</gadget>
<output>40</output>
<gadget id="calculator">4 * 8</gadget>
<output>32</output>
<gadget id="calculator">20 + 40 + 32</gadget>
<output>92</output>
<gadget id="calculator">92 * 2</gadget>
<output>184</output>
<result>184</result>


甲、乙两地间的公路长595千米．一辆汽车从甲地开往乙地用了7小时，它的平均速度是多少千米/时？

The length of the road between A and B is 595 km. A car travels from A to B in 7 hours, what is its average speed in km/h?

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


一个圆柱高5厘米，若高增加2cm，则表面积就增加25.12cm**2．原来圆柱的体积是多少cm**3．

The height of a cylinder is 5 cm. If the height increases by 2 cm, the surface area increases by 25.12 cm**2. What is the volume of the original cylinder in cm**3.

<gadget id="calculator">25.12 / 2 / 3.14 / 2</gadget>
<output>2</output>
<gadget id="calculator">2 ** 2</gadget>
<output>4</output>
<gadget id="calculator">3.14 * 4 * 5</gadget>
<output>62.8</output>
<result>62.8</result>


在一组数据9、12、15、17、21、30中，中位数是多少

In a set of data 9, 12, 15, 17, 21, 30, what is the median

<gadget id="calculator">15 + 17</gadget>
<output>32</output>
<gadget id="calculator">32 / 2</gadget>
<output>16</output>
<result>16</result>


正方体的棱长扩大2倍，则它的体积扩大多少倍

If the side length of a cube is doubled, how many times will its volume be enlarged?

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


红星小学有男生210人，女生270人．如果每30个学生需要一个老师，红星小学需要多少名老师？

Hongxing Primary School has 210 boys and 270 girls. If every 30 students need one teacher, how many teachers does Hongxing Primary School need?

<gadget id="calculator">270 + 210</gadget>
<output>480</output>
<gadget id="calculator">480 / 30</gadget>
<output>16</output>
<result>16</result>


用圆规画一个周长是12.56厘米的圆，圆规两脚之间的距离是多少厘米

Use a compass to draw a circle with a circumference of 12.56 cm, what is the distance between the two feet of the compass in cm

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


一列货车以每小时50千米的速度从甲地开往乙地，同时一列客军以每小时55千米的速度从乙地向甲地开去，经过6小时20分钟两车相距70千米，甲乙两地相距多少千米？

freight train is driving from A to B at a speed of 50 kilometers per hour, while a passenger train is driving from B to A at a speed of 55 kilometers per hour. After 6 hours and 20 minutes, the distance between the two vehicles is 70 kilometers. , How many kilometers is the distance between A and B?

<gadget id="calculator">19 / 3</gadget>
<output>19/3 = around 6.333333</output>
<gadget id="calculator">105 * (19/3)</gadget>
<output>665</output>
<gadget id="calculator">665 + 70</gadget>
<output>735</output>
<result>735</result>


兔妈妈和小兔一起搬了24个萝卜，其中是(3/4)兔妈妈搬的，小兔搬了几个萝卜？

The mother rabbit and the little rabbit moved 24 radishes together, among which (3/4) the mother rabbit moved, how many radishes did the little rabbit move?

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">24 * (3/4)</gadget>
<output>18</output>
<gadget id="calculator">24 - 18</gadget>
<output>6</output>
<result>6</result>


实验小学要为三、四年级的学生每人买一本价格为12元的作文辅导书．已知三年级有145人，四年级有135人，两个年级一共需要多少元？

The experimental primary school needs to buy a composition guidance book for each of the students in the third and fourth grades at a price of 12 yuan. It is known that there are 145 students in the third grade and 135 students in the fourth grade. How much is the total cost for the two grades?

<gadget id="calculator">145 + 135</gadget>
<output>280</output>
<gadget id="calculator">280 * 12</gadget>
<output>3_360</output>
<result>3_360</result>


一个圆锥形沙堆，底面积是28.26㎡，高是6m．用这堆沙在10m宽的公路上铺2cm厚的路面，能铺多少米？

A conical sand pile has a bottom area of 28.26㎡ and a height of 6m. Using this pile of sand to pave a 2cm thick road on a 10m wide road, how many meters can be paved?

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">2 / 100</gadget>
<output>1/50 = around 0.02</output>
<gadget id="calculator">10 * (1/50)</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">6 / (1/5)</gadget>
<output>30</output>
<gadget id="calculator">(1/3) * 28.26 * 30</gadget>
<output>282.6</output>
<result>282.6</result>


检验员检验一批电脑的合格率是98%，不合格电脑是98台，求合格的电脑是几台？

The pass rate of a batch of computers inspected by the inspector is 98%, and the number of unqualified computers is 98. How many computers are qualified?

<gadget id="calculator">98 / 100</gadget>
<output>49/50 = around 0.98</output>
<gadget id="calculator">1 - (49/50)</gadget>
<output>1/50 = around 0.02</output>
<gadget id="calculator">98 / (1/50)</gadget>
<output>4_900</output>
<gadget id="calculator">4_900 - 98</gadget>
<output>4_802</output>
<result>4_802</result>


服装商场进了一批儿童服装，按40%的利润定价出售，当售出这批服装的90%以后，剩下的儿童服装全部按定价的五折销售，这批儿童装全部销售完后实际可获利百分之几？

The clothing store has bought a batch of children's clothing, which is sold at a price of 40% of the profit. When 90% of this batch of clothing is sold, the rest of the children's clothing is sold at a 50% discount. What percentage of profit can be made?

<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">1 * (2/5)</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">1 + (2/5)</gadget>
<output>7/5 = around 1.4</output>
<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>
<gadget id="calculator">(7/5) * (9/10)</gadget>
<output>63/50 = around 1.26</output>
<gadget id="calculator">1 - (9/10)</gadget>
<output>1/10 = around 0.1</output>
<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">(7/5) * (1/10) * (1/2)</gadget>
<output>7/100 = around 0.07</output>
<gadget id="calculator">1 * 1</gadget>
<output>1</output>
<gadget id="calculator">(7/100) - 1</gadget>
<output>-93/100 = around -0.93</output>
<gadget id="calculator">(63/50) + (-93/100)</gadget>
<output>33/100 = around 0.33</output>
<gadget id="calculator">(33/100) / 1</gadget>
<output>33/100 = around 0.33</output>
<result>33/100 = around 0.33</result>


从3个男生，4个女生中选一名班长和一名学习委员，共有多少种不同的选法？(班长和学习委员必须由男女生搭配)

How many different ways are there to choose a squad leader and a study committee member from 3 boys and 4 girls? (Squad leader and study committee members must be matched by male and female students)

<gadget id="calculator">3 * 4 * 2</gadget>
<output>24</output>
<result>24</result>


摆3个○，摆☆的个数是○的8倍多少个☆．

Put 3 ○, and the number of ☆ is 8 times of ○ how many☆.

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


希望小学三年级同学栽了8行桃树，每行27棵，四年级栽了320棵桃树，四年级比三年级多栽多少棵桃树？

The students in the third grade of Hope Primary School planted 8 rows of peach trees, 27 trees in each row, and the fourth grade planted 320 peach trees. How many more peach trees were planted in the fourth grade than in the third grade?

<gadget id="calculator">27 * 8</gadget>
<output>216</output>
<gadget id="calculator">320 - 216</gadget>
<output>104</output>
<result>104</result>


育新苗圃柏树苗的占地面积是松树苗的80%，两种树苗共占地9公顷．两种树苗各占地多少公顷？

The area occupied by cypress seedlings in Yuxin Nursery is 80% of that of pine seedlings, and the two kinds of seedlings occupy a total area of 9 hectares. How many hectares do the two saplings occupy?

<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">1 + (4/5)</gadget>
<output>9/5 = around 1.8</output>
<gadget id="calculator">9 / (9/5)</gadget>
<output>5</output>
<gadget id="calculator">5 * (4/5)</gadget>
<output>4</output>
<result>4</result>


小强给客人沏茶，烧开水要12分钟，洗茶杯要2分钟，买茶叶要8分钟，放茶叶泡茶要1分钟，为了使客人能早点喝上茶，至少需要多少分钟．

Xiaoqiang makes tea for the guests. It takes 12 minutes to boil the water, 2 minutes to wash the teacups, 8 minutes to buy tea leaves, and 1 minute to put the tea leaves to make tea. In order for the guests to drink tea early, how many minutes is needed at least.

<gadget id="calculator">1 + 12</gadget>
<output>13</output>
<result>13</result>


一部儿童电视剧共220分钟，分8集播放，每集大约播放多长时间？

A children's TV series is 220 minutes long and divided into 8 episodes. How long is each episode?

<gadget id="calculator">220 / 8</gadget>
<output>55/2 = around 27.5</output>
<result>55/2 = around 27.5</result>


(5/12)的分子增加15，分母应该增加多少，分数的大小不变．

If the numerator of (5/12) increases by 15, how much should the denominator increase, and the size of the fraction remains unchanged.

<gadget id="calculator">12 * 4</gadget>
<output>48</output>
<gadget id="calculator">48 - 12</gadget>
<output>36</output>
<result>36</result>


卡片上分别写着0、2、3、5，用这四个数字可以组成多少个没有重复小数．

0, 2, 3, 5 are written on the card respectively, how many non-repeating decimals can be formed with these four numbers.

<gadget id="calculator">3 * 3 * 2 * 1</gadget>
<output>18</output>
<gadget id="calculator">4 * 3 * 2 * 1</gadget>
<output>24</output>
<gadget id="calculator">18 + 18 + 24</gadget>
<output>60</output>
<result>60</result>


(1/3): (1/5)=x: The correct solution of 9 is x=how much

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">(1/3) * 9</gadget>
<output>3</output>
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">3 / (1/5)</gadget>
<output>15</output>
<result>15</result>


在200米长的跑道两端已经插了两面大红旗，老师要求每间隔5米再插上彩旗，一共插了多少面旗子？

Two big red flags have been planted at both ends of the 200-meter-long runway. The teacher asked to plant colorful flags at intervals of 5 meters. How many flags were planted in total?

<gadget id="calculator">200 / 5</gadget>
<output>40</output>
<gadget id="calculator">40 + 1</gadget>
<output>41</output>
<result>41</result>


箭鱼游动时的速度是28米/秒，8秒可以游多少米．

A swordfish swims at a speed of 28 m/s, how many meters can it swim in 8 seconds?

<gadget id="calculator">28 * 8</gadget>
<output>224</output>
<result>224</result>


一栋楼每单元住24户人家，共有3个单元，一共住多少户人家？

There are 24 households in each unit of a building, and there are 3 units in total. How many households live in total?

<gadget id="calculator">24 * 3</gadget>
<output>72</output>
<result>72</result>


把3米长的一根铁丝平均分成7段，每段是多少米，每段占全长的((())/(()))．

Divide a 3-meter-long iron wire into 7 sections on average, how many meters is each section, and each section accounts for ((())/(())) of the total length.

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


为参加校乒乓球比赛，六年级1班决定在班内进行乒乓球选拔赛，从报名的8名同学中找出水平最高的两名同学，假定8名同学的水平都不相同，且水平高的同学总能胜水平低的同学，那么要确保能选择水平最高的两名同学，最少要安排多少场比赛．

In order to participate in the school table tennis competition, Class 1 of the sixth grade decided to hold a table tennis trial in the class, and find out the two students with the highest level from the 8 students who signed up. Students can always win against students with low levels, so to ensure that the two students with the highest level can be selected, how many games should be arranged at least.

<gadget id="calculator">7 + 3 + 2 + 1</gadget>
<output>13</output>
<result>13</result>


小林身高120厘米，是表妹身高的2倍，而舅舅身高是表妹的3倍．舅舅比小林高多少厘米？

Kobayashi is 120 cm tall, twice as tall as his cousin, while his uncle is three times as tall as his cousin. How many centimeters is Uncle taller than Kobayashi?

<gadget id="calculator">120 / 2</gadget>
<output>60</output>
<gadget id="calculator">60 * 3</gadget>
<output>180</output>
<gadget id="calculator">180 - 120</gadget>
<output>60</output>
<result>60</result>


甲乙两辆汽车同时从相距480千米的两地相对开出，经过3.2小时两车相遇．已知乙车每小时行72千米，甲车每小时行多少千米．

Two cars, A and B, drive from two places 480 kilometers apart at the same time. After 3.2 hours, the two cars meet. It is known that car B travels 72 kilometers per hour, how many kilometers per hour does car A travel.

<gadget id="calculator">480 / 3.2</gadget>
<output>150</output>
<gadget id="calculator">150 - 72</gadget>
<output>78</output>
<result>78</result>


育才小学有学生420人，排成了一个三成的空心方阵，这个方阵的最外层每边有多少人？

There are 420 students in Yucai Primary School, arranged in a 30% hollow square. How many people are there on each side of the outermost layer of the square?

<gadget id="calculator">420 / 4 / 3</gadget>
<output>35</output>
<gadget id="calculator">35 + 3</gadget>
<output>38</output>
<result>38</result>


学校食堂买了156千克青菜，吃了4天后还剩64千克．平均每天吃多少千克青菜？

The school cafeteria bought 156 kilograms of green vegetables, and 64 kilograms remained after eating for 4 days. How many kilograms of vegetables do you eat on average every day?

<gadget id="calculator">156 - 64</gadget>
<output>92</output>
<gadget id="calculator">92 / 4</gadget>
<output>23</output>
<result>23</result>


把一根直径20厘米、长是2米的圆柱形木材锯成同样的2段，表面积增加了多少平方厘米？(提示：分横切和竖切两种情况考虑)

If a cylindrical piece of wood with a diameter of 20 cm and a length of 2 meters is sawn into 2 identical sections, how many square centimeters will the surface area increase? (Hint: consider the two cases of cross cutting and vertical cutting)

<gadget id="calculator">20 * 2 * 100 * 2</gadget>
<output>8_000</output>
<result>8_000</result>


甲乙两人都加工了一些零件，甲加工的零件个数比乙多40个，经检验，甲生产的零件只有90%合格，而乙所加工的零件全部合格，这样，两人加工的零件一共有720个合格，甲加工了多少个零件？

Both A and B have processed some parts. The number of parts processed by A is 40 more than that of B. After inspection, only 90% of the parts produced by A are qualified, while all the parts processed by B are qualified. In this way, the total number of parts processed by the two is There are 720 qualified, how many parts did A process?

<gadget id="calculator">40 + 720</gadget>
<output>760</output>
<gadget id="calculator">0.9 + 1</gadget>
<output>1.9</output>
<gadget id="calculator">760 / 1.9</gadget>
<output>400</output>
<result>400</result>


一个长方体，如果高减少2.5cm，就成为一个正方体，而且表面积要减少100平方厘米，原来这个长方体的体积是多少立方厘米．

A cuboid becomes a cube if its height is reduced by 2.5 cm, and its surface area is reduced by 100 cm2. What is the volume of the cuboid in cubic centimeters?

<gadget id="calculator">100 / 2.5 / 4</gadget>
<output>10</output>
<gadget id="calculator">10 + 2.5</gadget>
<output>12.5</output>
<gadget id="calculator">10 * 10 * 12.5</gadget>
<output>1_250</output>
<result>1_250</result>


一个圆形旱冰场的直径是26米，扩建后，半径增加了6米．扩建后的旱冰场的面积比原来增加了多少平方米？

The diameter of a circular roller skating rink is 26 meters. After expansion, the radius increases by 6 meters. How many square meters has the area of the expanded roller skating rink increased compared to the original one?

<gadget id="calculator">26 / 2</gadget>
<output>13</output>
<gadget id="calculator">13 + 6</gadget>
<output>19</output>
<gadget id="calculator">19 ** 2</gadget>
<output>361</output>
<gadget id="calculator">13 ** 2</gadget>
<output>169</output>
<gadget id="calculator">361 - 169</gadget>
<output>192</output>
<gadget id="calculator">3.14 * 192</gadget>
<output>602.88</output>
<result>602.88</result>


甲、乙、丙三数的平均数为128，丁数为64，这四个数的平均数是多少．

The average of the numbers A, B, and C is 128, and the number D is 64. What is the average of these four numbers?

<gadget id="calculator">128 * 3</gadget>
<output>384</output>
<gadget id="calculator">384 + 64</gadget>
<output>448</output>
<gadget id="calculator">448 / 4</gadget>
<output>112</output>
<result>112</result>


把一根10米的木头锯成5段，每锯一次用8分，共需多少分．

A 10-meter piece of wood is sawed into 5 sections, each sawing takes 8 points, how many points are needed in total.

<gadget id="calculator">5 - 1</gadget>
<output>4</output>
<gadget id="calculator">4 * 8</gadget>
<output>32</output>
<result>32</result>


阳光小学六年级参加体育比赛的有275人，其中女生人数是男生的(3/8)，男生有多少人．

There are 275 students in the sixth grade of Sunshine Elementary School participating in the sports competition, among which the number of girls is 3/8, how many boys are there?

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>
<gadget id="calculator">1 + (3/8)</gadget>
<output>11/8 = around 1.375</output>
<gadget id="calculator">275 / (11/8)</gadget>
<output>200</output>
<result>200</result>


某村开展荒山造林活动，种桃树6公顷，每公顷种1050棵，种杏树4公顷，每公顷种3000棵，请你根据以上信息，提出一个你喜欢的数学问题，再加以解答．

A village is carrying out afforestation activities on barren hills, planting 6 hectares of peach trees, 1050 trees per hectare, 4 hectares of apricot trees, 3000 trees per hectare, please ask a mathematical problem you like based on the above information, and then answer it.

<gadget id="calculator">1_050 * 6</gadget>
<output>6_300</output>
<result>6_300</result>


数学测验，小亚前三次的平均成绩是92分，加上第四次后平均分是93.5分，小亚第四次测验的成绩是多少？

In the math test, Xiaoya's average score in the first three times is 92 points, and the average score after adding the fourth time is 93.5 points. What is Xiaoya's score in the fourth test?

<gadget id="calculator">93.5 * 4</gadget>
<output>374</output>
<gadget id="calculator">92 * 3</gadget>
<output>276</output>
<gadget id="calculator">374 - 276</gadget>
<output>98</output>
<result>98</result>


已知大正方形的面积比为小正方形的面积多52平方分米，大正方形的边长比小正方形的边长多2分米，求大正方形的面积．

It is known that the area of the large square is 52 square decimeters larger than the area of the small square, and the side length of the large square is 2 decimeters larger than the side length of the small square. Find the area of the large square.

<gadget id="calculator">2 * 2</gadget>
<output>4</output>
<gadget id="calculator">52 - 4</gadget>
<output>48</output>
<gadget id="calculator">48 / 2 / 2</gadget>
<output>12</output>
<gadget id="calculator">12 + 2</gadget>
<output>14</output>
<gadget id="calculator">14 * 14</gadget>
<output>196</output>
<result>196</result>


一个数的(1/4)是(1/2)，这个数是多少

(1/4) of a number is (1/2), what is this number

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


小红的爸爸在法国工作，最近寄回家500欧元，要到银行兑换人民币，能换多少人民币？(1欧元兑换人民币10.07元)

Xiaohong's father works in France and recently sent home 500 euros. How much RMB can I exchange for RMB at the bank? (1 Euro to RMB 10.07)

<gadget id="calculator">5_000 * 10.07</gadget>
<output>50_350</output>
<result>50_350</result>


丽丽去看电影，她的票上写着：28排24座，到剧场后，丽丽看到她的座位是倒数第二排的最后一个座位，如果每排人数相等，请问该剧场能容纳多少人？

Lili went to a movie, and her ticket said: 28 rows and 24 seats. After arriving at the theater, Lili saw that her seat was the last seat in the penultimate row. If the number of people in each row is equal, how can the theater accommodate how many people?

<gadget id="calculator">28 + 1</gadget>
<output>29</output>
<gadget id="calculator">29 * 24</gadget>
<output>696</output>
<result>696</result>


有七个按从小到大顺序排列着的连续整数，如果前三个数的和是33，那么后四个数的和是多少．

There are seven consecutive integers arranged in ascending order, if the sum of the first three numbers is 33, what is the sum of the last four numbers.

<gadget id="calculator">13 + 14 + 15 + 16</gadget>
<output>58</output>
<result>58</result>


在运动会的入场式上，每36名学生排成6行，照这样计算，四年级共108名同学需要排成几行？(用两种方法计算)

In the entrance ceremony of the sports meeting, every 36 students lined up in 6 lines. According to this calculation, how many lines should a total of 108 students in the fourth grade line up? (calculated in two ways)

<gadget id="calculator">36 / 6</gadget>
<output>6</output>
<gadget id="calculator">108 / 6</gadget>
<output>18</output>
<result>18</result>


卡莉娅驾驶一辆北极狐高级轿车从家赶往体育场去看比赛，一路上不断有公交车经过，卡莉娅注意到每10分钟就有一辆公交车从对面驶来，每12.5分钟就有一辆公交车被卡莉娅超过，那么公交车的发车间隔是多少分钟．

Kalia drove an Arctic Fox limousine from home to the stadium to watch the game. There were buses passing by all the way. Kalia noticed that there was a bus coming from the opposite side every 10 minutes, and a bus every 12.5 minutes. If a bus is overtaken by Kalia, how many minutes does it take for the bus to depart?

<gadget id="calculator">12.5 * 8</gadget>
<output>100</output>
<result>100</result>


把一段直径20厘米的圆木沿直径垂直于底面切开，表面积增加了240平方厘米，这段圆木的体积是多少．

If a log with a diameter of 20 cm is cut perpendicular to the bottom surface, the surface area increases by 240 cm2, what is the volume of the log?

<gadget id="calculator">20 / 2</gadget>
<output>10</output>
<gadget id="calculator">10 ** 2</gadget>
<output>100</output>
<gadget id="calculator">240 / 2 / 20</gadget>
<output>6</output>
<gadget id="calculator">3.14 * 100 * 6</gadget>
<output>1_884</output>
<result>1_884</result>


在△ABC中，∠A=∠B=60°，∠C=多少．

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


"十一"期间，学校计划将行知楼中的40间教室的屋顶和四壁粉刷一新．经测量每间教室的长都是8米，宽6米，高3.5米，黑板和门窗共14平方米．如果每平方米用涂料0.8千克，涂料每千克15元，每平方米还要付给粉刷工人工资0.5元，请帮学校测算一下，这次粉刷教室需花多少元钱？

During the "October" period, the school plans to repaint the roofs and walls of 40 classrooms in Xingzhi Building. After measurement, the length of each classroom is 8 meters, the width is 6 meters, and the height is 3.5 meters. The blackboard, doors and windows are 14 square meters in total. If 0.8 kg of paint is used per square meter, the paint is 15 yuan per kilogram, and the painting workers are paid 0.5 yuan per square meter. Please help the school calculate how much it will cost to paint the classroom this time?

<gadget id="calculator">8 * 6</gadget>
<output>48</output>
<gadget id="calculator">6 * 3.5</gadget>
<output>21</output>
<gadget id="calculator">3.5 * 8</gadget>
<output>28</output>
<gadget id="calculator">48 + 21 + 28</gadget>
<output>97</output>
<gadget id="calculator">97 * 2</gadget>
<output>194</output>
<gadget id="calculator">194 - 48 - 14</gadget>
<output>132</output>
<gadget id="calculator">132 * 40</gadget>
<output>5_280</output>
<gadget id="calculator">5_280 * 0.8</gadget>
<output>4_224</output>
<gadget id="calculator">4_224 * 15</gadget>
<output>63_360</output>
<gadget id="calculator">5_280 * 0.5</gadget>
<output>2_640</output>
<gadget id="calculator">63_360 + 2_640</gadget>
<output>66_000</output>
<result>66_000</result>


一根电线第一次用去全长的一半，第二次用去余下的一半多6米，还剩下20米．这根电线原来长多少米？

A wire uses half of the total length for the first time, and the remaining half is more than 6 meters for the second time, leaving 20 meters left. How long is this wire originally?

<gadget id="calculator">20 + 6</gadget>
<output>26</output>
<gadget id="calculator">26 * 2 * 2</gadget>
<output>104</output>
<result>104</result>


50/□=7…1，□里填多少．

<gadget id="calculator">50 - 1</gadget>
<output>49</output>
<gadget id="calculator">49 / 7</gadget>
<output>7</output>
<result>7</result>


长方体中，相交于同一顶点的三条棱的长度分别是4厘米、5厘米、6厘米，用铁丝围一个这样的长方体框架，需要铁丝多少米．

In a cuboid, the lengths of the three edges intersecting at the same vertex are 4 cm, 5 cm, and 6 cm respectively. How many meters of wire are needed to enclose such a cuboid frame with wire.

<gadget id="calculator">4 + 5 + 6</gadget>
<output>15</output>
<gadget id="calculator">4 / 100</gadget>
<output>1/25 = around 0.04</output>
<gadget id="calculator">15 * (1/25)</gadget>
<output>3/5 = around 0.6</output>
<result>3/5 = around 0.6</result>


有六个数排成一列，这六个数的平均数是11，前四个数的平均数是9．后三个数的平均数是14，第四个数是多少．

There are six numbers in a row, the average of these six numbers is 11, and the average of the first four numbers is 9. The average of the last three numbers is 14, what is the fourth number?

<gadget id="calculator">9 * 4</gadget>
<output>36</output>
<gadget id="calculator">14 * 3</gadget>
<output>42</output>
<gadget id="calculator">36 + 42</gadget>
<output>78</output>
<gadget id="calculator">11 * 6</gadget>
<output>66</output>
<gadget id="calculator">78 - 66</gadget>
<output>12</output>
<result>12</result>


客车和货车的速度比是9：7．两车同时分别从甲乙两地出发，相向而行，(3/4)小时相遇．如果两车同时分别从甲乙两地出发，同时而行，客车追上货车需要多少小时．

The speed ratio of passenger cars and trucks is 9:7. Two cars depart from A and B respectively at the same time, drive toward each other, and meet each other in (3/4) hours. If two cars depart from places A and B at the same time, how many hours will it take for the bus to catch up with the truck?

<gadget id="calculator">9 + 7</gadget>
<output>16</output>
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">9 - 7</gadget>
<output>2</output>
<gadget id="calculator">(3/4) / 2</gadget>
<output>3/8 = around 0.375</output>
<gadget id="calculator">16 * (3/8)</gadget>
<output>6</output>
<result>6</result>


一本书，已看了全书的20%，还剩120页未看，这本书共有多少页？

A book, 20% of the book has been read, and there are 120 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">120 / (4/5)</gadget>
<output>150</output>
<result>150</result>


学校四、五年级学生为希望小学共捐了913本书，五年级学生捐的本数是四年级的1.2倍，四年级学生捐了多少本书？

The school's fourth and fifth grade students donated a total of 913 books to Hope Primary School. The number of books donated by the fifth grade students was 1.2 times that of the fourth grade students. How many books did the fourth grade students donate?

<gadget id="calculator">1.2 + 1</gadget>
<output>2.2</output>
<gadget id="calculator">913 / 2.2</gadget>
<output>415</output>
<result>415</result>


从甲城到乙城，汽车每小时行65千米，行了4小时，这时距中点还有8千米，甲乙两城之间的路程是多少千米？

From City A to City B, the car travels 65 kilometers per hour for 4 hours. At this time, there are still 8 kilometers away from the midpoint. How many kilometers is the distance between A and B?

<gadget id="calculator">65 * 4</gadget>
<output>260</output>
<gadget id="calculator">260 + 8</gadget>
<output>268</output>
<gadget id="calculator">268 * 2</gadget>
<output>536</output>
<result>536</result>


一个长方形周长400米，长与宽的比是3：1，这个长方形的面积是多少平方米．

The perimeter of a rectangle is 400 meters, and the ratio of length to width is 3:1. What is the area of the rectangle?

<gadget id="calculator">400 / 2</gadget>
<output>200</output>
<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">200 * (3/4)</gadget>
<output>150</output>
<gadget id="calculator">200 - 150</gadget>
<output>50</output>
<gadget id="calculator">150 * 50</gadget>
<output>7_500</output>
<result>7_500</result>


两只船在江面相遇后，一只货船以每时25千米的航速开往上游的港口A，另一只客船开往下游的港口B．经过18时，两船同时到达它们的目的地．港口A与B之间的航程为954千米，客船的航速是多少？

After the two ships met on the river, one cargo ship sailed to the upstream port A at a speed of 25 kilometers per hour, and the other passenger ship sailed to the downstream port B. After 18 o'clock, the two ships arrived at their destination at the same time. The distance between ports A and B is 954 kilometers. What is the speed of the passenger ship?

<gadget id="calculator">954 / 18</gadget>
<output>53</output>
<gadget id="calculator">53 - 25</gadget>
<output>28</output>
<result>28</result>


在4：5中，比的前项加上8，要使比值不变，比的后项应乘多少

In 4:5, add 8 to the former term of the ratio, how much should the latter term be multiplied to keep the ratio constant


两个小组的同学浇花，第一小组浇了总花数的(2/7)，第二小组浇了总花数的(4/7)，两个组一共浇了总花数的多少．

The students in the two groups watered the flowers. The first group watered (2/7) of the total flowers, and the second group watered (4/7) the total flowers. The two groups watered the total number of flowers.

<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>
<gadget id="calculator">4 / 7</gadget>
<output>4/7 = around 0.571429</output>
<gadget id="calculator">(2/7) + (4/7)</gadget>
<output>6/7 = around 0.857143</output>
<result>6/7 = around 0.857143</result>


一本书300页，第一星期看了全书的(1/3)，第二星期看的页数是第一星期的(4/5)，第二星期看了多少页？

A book with 300 pages, read (1/3) of the whole book in the first week, and the number of pages read in the second week is (4/5) in the first week, how many pages were read in the second week?

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">300 * (1/3) * (4/5)</gadget>
<output>80</output>
<result>80</result>


一个平行四边形和一个三角形的底相等，面积也相等，平行四边形的高是3厘米，三角形的高是多少厘米．

A parallelogram and a triangle have the same base and the same area. The height of the parallelogram is 3 cm. What is the height of the triangle in cm?

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


2路公交车到李口小学站，下去13人，又上车7人，这时车上共有24人，公交车上原来有多少人？

Bus No. 2 went to Likou Primary School Station, 13 people went down, and 7 people got on the bus. At this time, there were 24 people on the bus. How many people were there on the bus?

<gadget id="calculator">24 - 7</gadget>
<output>17</output>
<gadget id="calculator">17 + 13</gadget>
<output>30</output>
<result>30</result>


一个数的3倍比(2/3)大(1/3)，求这个数．

Three times a number is greater than (2/3) (1/3), find this number.

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">(1/3) * (2/3)</gadget>
<output>2/9 = around 0.222222</output>
<gadget id="calculator">(2/3) + (2/9)</gadget>
<output>8/9 = around 0.888889</output>
<gadget id="calculator">(8/9) / 3</gadget>
<output>8/27 = around 0.296296</output>
<result>8/27 = around 0.296296</result>


甲乙丙三位同学到王老师办公室订正作业，老师给各人讲解要3分钟，然后自己订正，这样甲听讲解3分钟，订正13分钟，共要16分钟，乙共要13分钟，丙共要19分钟，怎样合理安排讲解与订正，使王老师花的时间最少，最少是多少时间？

Students A, B, and C go to Teacher Wang’s office to correct their homework. The teacher will explain to each of them for 3 minutes, and then correct themselves. In this way, A will listen to the explanation for 3 minutes, correct for 13 minutes, a total of 16 minutes, B will take 13 minutes, and C will take 13 minutes 19 minutes, how to reasonably arrange the explanation and correction so that Mr. Wang spends the least time, how much time is the least?

<gadget id="calculator">13 * 3</gadget>
<output>39</output>
<gadget id="calculator">16 * 2</gadget>
<output>32</output>
<gadget id="calculator">39 + 32 + 19</gadget>
<output>90</output>
<result>90</result>


一个数的20%等于120的(1/3)，这个数是多少？

20% of a number is equal to (1/3) of 120. What is this number?

<gadget id="calculator">40 / 0.2</gadget>
<output>200</output>
<result>200</result>


把一根圆柱形木料截成3段，表面积增加了25.12平方厘米，这根木料的底面积是多少平方厘米．

If a cylindrical piece of wood is cut into 3 sections, the surface area increases by 25.12 square centimeters, what is the area of the bottom of this piece of wood in square centimeters?

<gadget id="calculator">25.12 / 4</gadget>
<output>6.28</output>
<result>6.28</result>


小明去游泳池里游泳，游泳池的长20米，已经游了2个来回．他已经游了多少米？

Xiao Ming goes to swim in the swimming pool. The length of the swimming pool is 20 meters, and he has swum 2 back and forth. How many meters has he swam?

<gadget id="calculator">2 * 2 * 20</gadget>
<output>80</output>
<result>80</result>


盛世佳和超市购进12箱儿童牙膏，每箱25盒，每盒卖4元钱．这些儿童牙膏一共可以卖多少钱？

Shengshijiahe Supermarket bought 12 boxes of children's toothpaste, 25 boxes per box, and each box sold for 4 yuan. How much can these children's toothpaste sell in total?

<gadget id="calculator">12 * 25</gadget>
<output>300</output>
<gadget id="calculator">4 * 300</gadget>
<output>1_200</output>
<result>1_200</result>


<gadget id="calculator">3.6 + 6.4</gadget>
<output>10</output>
<gadget id="calculator">120 / 10</gadget>
<output>12</output>
<result>12</result>


修路队第一天修路94.8米，第二天比第一天修的1.8倍少7.2米．第二天修多少米？

The road construction team built a road of 94.8 meters on the first day, and it was 7.2 meters shorter than the 1.8 times of the first day on the second day. How many meters to repair the next day?

<gadget id="calculator">94.8 * 1.8</gadget>
<output>170.64</output>
<gadget id="calculator">170.64 - 7.2</gadget>
<output>163.44</output>
<result>163.44</result>


一个服装厂做成人服装15000套，比儿童服装的2倍还多800套，做儿童服装多少套？(用方程解)

A garment factory produces 15,000 sets of adult clothing, which is 800 sets twice as much as children's clothing. How many sets of children's clothing are produced? (solution by equation)

<gadget id="calculator">15_000 - 800</gadget>
<output>14_200</output>
<gadget id="calculator">14_200 / 2</gadget>
<output>7_100</output>
<result>7_100</result>


一个等腰直角三角形最长边为10cm，则这个三角形的面积=多少．

If the longest side of an isosceles right triangle is 10 cm, what is the area of the triangle?

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">(1/2) * 50</gadget>
<output>25</output>
<result>25</result>


"0000"的个数比"□□□□□"的个数少多少

How much is the number of "0000" less than the number of "□□□□□"

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