有18名同学分苹果，平均每人分到6个，又来了一些同学，大家重新分苹果，平均每人分到3个，算一算，又来了多少人？

There were 18 students who divided the apples, and each of them got 6 apples on average. Some students came, and everyone divided the apples again, and each of them got 3 apples on average. After counting, how many people came?

<gadget id="calculator">18 * 6</gadget>
<output>108</output>
<gadget id="calculator">108 / 3</gadget>
<output>36</output>
<gadget id="calculator">36 - 18</gadget>
<output>18</output>
<result>18</result>


修一条长180米的公路，已修的正好是全长的(2/5)，这条公路还剩多少米？

To build a road with a length of 180 meters, it has been repaired exactly to the full length (2/5), how many meters is left on this road?

<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">180 * (3/5)</gadget>
<output>108</output>
<result>108</result>


一个长方体盒子，正好能放90个棱长1厘米的正方体木块，这个盒子的容积是多少立方厘米．

A cuboid box can fit exactly 90 cubes of 1 cm side length, what is the volume of the box in cubic centimeters?

<gadget id="calculator">1 * 1 * 1 * 90</gadget>
<output>90</output>
<result>90</result>


2个(4/5)除8所得的商，乘4的倒数，结果是多少？

What is the result of multiplying the quotient obtained by dividing 2 (4/5) by 8 by the reciprocal of 4?

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">(4/5) * 2</gadget>
<output>8/5 = around 1.6</output>
<gadget id="calculator">8 / (8/5)</gadget>
<output>5</output>
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">5 * (1/4)</gadget>
<output>5/4 = around 1.25</output>
<result>5/4 = around 1.25</result>


从A地到B地，甲要8分钟，乙要10分钟，甲的速度比乙快多少．

From A to B, A takes 8 minutes and B takes 10 minutes. How much faster is A than B?

<gadget id="calculator">10 - 8</gadget>
<output>2</output>
<gadget id="calculator">2 / 8</gadget>
<output>1/4 = around 0.25</output>
<result>1/4 = around 0.25</result>


一个直径为4分米的圆，他的周长是多少？

What is the circumference of a circle with a diameter of 4 decimeters?

<gadget id="calculator">3.14 * 4</gadget>
<output>12.56</output>
<result>12.56</result>


According to "17*36=612", write out how much 1.7*0.36=.

<gadget id="calculator">1.7 * 0.36</gadget>
<output>0.612</output>
<result>0.612</result>


一部电视剧每天播放2集，每集35分钟，一共播放了15天，这部电视剧全长多少分钟？

A TV series broadcasts 2 episodes every day, each episode is 35 minutes long, for a total of 15 days, how many minutes is the total length of this TV series?

<gadget id="calculator">35 * 2 * 15</gadget>
<output>1_050</output>
<result>1_050</result>


一根铁丝正好围成一个长10厘米，宽8厘米的长方形，如果把这根铁丝围成正方形，这个正方形的边长是多少厘米

A piece of iron wire forms a rectangle with a length of 10 cm and a width of 8 cm. If the wire is formed into a square, what is the side length of the square in cm?

<gadget id="calculator">10 + 8</gadget>
<output>18</output>
<gadget id="calculator">2 / 4</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">18 * (1/2)</gadget>
<output>9</output>
<result>9</result>


205减去15与7的积，差是多少？

What is the difference between 205 minus the product of 15 and 7?

<gadget id="calculator">15 * 7</gadget>
<output>105</output>
<gadget id="calculator">205 - 105</gadget>
<output>100</output>
<result>100</result>


小明从一楼到四楼要走48级台阶，他的家在9楼，还要走多少级台阶到家．

Xiao Ming has to walk 48 steps from the first floor to the fourth floor. His home is on the ninth floor. How many steps do he have to walk to get home?

<gadget id="calculator">4 - 1</gadget>
<output>3</output>
<gadget id="calculator">48 / 3</gadget>
<output>16</output>
<gadget id="calculator">9 - 4</gadget>
<output>5</output>
<gadget id="calculator">16 * 5</gadget>
<output>80</output>
<result>80</result>


一个圆柱侧面展开是一个周长为32厘米的正方形，圆柱的侧面积是多少平方厘米．

If the lateral expansion of a cylinder is a square with a perimeter of 32 cm, what is the lateral area of the cylinder in square centimeters?

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


小林把(15+☆)*4，错算成15+☆*4，他算出的结果与正确得数相差多少．

Kobayashi miscalculated (15+☆)*4 as 15+☆*4. What is the difference between his calculated result and the correct one?


若最简分数((p)/(q))写成小数形式为0．abababab…(非负整数a、b可以相等，但至少有一个非零)，那么，符合条件的分数中，不同的分子有多少个．

If the simplest fraction ((p)/(q)) is written as a decimal, it is 0. abababab...(non-negative integers a and b can be equal, but at least one of them is non-zero), then, how many different molecules are there in the scores that meet the conditions.

<gadget id="calculator">99 / 3</gadget>
<output>33</output>
<gadget id="calculator">99 / 11</gadget>
<output>9</output>
<gadget id="calculator">3 * 11</gadget>
<output>33</output>
<gadget id="calculator">99 / 33</gadget>
<output>3</output>
<gadget id="calculator">9 - 3</gadget>
<output>6</output>
<gadget id="calculator">33 + 6</gadget>
<output>39</output>
<gadget id="calculator">99 - 39</gadget>
<output>60</output>
<gadget id="calculator">60 + 3</gadget>
<output>63</output>
<result>63</result>


甲是乙的(5/6)，如果乙是(5/6)米，那么甲是多少米．

A is (5/6) of B, if B is (5/6) meters, how many meters is A?

<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>
<gadget id="calculator">(5/6) * (5/6)</gadget>
<output>25/36 = around 0.694444</output>
<result>25/36 = around 0.694444</result>


小东看一本故事书，第一天看了全书的20%，第二天看了24页，两天看了64页．这本故事书有多少页．

Xiaodong reads a story book, and reads 20% of the whole book on the first day, 24 pages on the second day, and 64 pages on the second day. How many pages does this storybook have?

<gadget id="calculator">64 - 24</gadget>
<output>40</output>
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">40 / (1/5)</gadget>
<output>200</output>
<result>200</result>


一个长方形长6cm，比宽长2cm，它的面积是多少．

What is the area of a rectangle whose length is 6 cm and its width is 2 cm?

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


一间教室长9m，宽7m，高3m，现在要粉刷教室的四周和屋顶，门窗的面积是25m**2，如果每m**2需涂料200g，共需涂料多少kg？

A classroom is 9m long, 7m wide, and 3m high. Now it is necessary to paint the surroundings and the roof of the classroom. The area of the doors and windows is 25m**2. If 200g of paint is required for every m**2, how many kg of paint is required?

<gadget id="calculator">9 * 7</gadget>
<output>63</output>
<gadget id="calculator">9 * 3 * 2</gadget>
<output>54</output>
<gadget id="calculator">7 * 3 * 2</gadget>
<output>42</output>
<gadget id="calculator">42 - 25</gadget>
<output>17</output>
<gadget id="calculator">63 + 54 + 17</gadget>
<output>134</output>
<gadget id="calculator">200 / 1_000</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">134 * (1/5)</gadget>
<output>134/5 = around 26.8</output>
<result>134/5 = around 26.8</result>


学校图书馆原有图书7200本，其中30%是科技书，其余的是文艺书，后来又购进一批科技书，这时科技书占现有图书的40%，又购进科技书多少本？

The school library originally had 7,200 books, 30% of which were science and technology books, and the rest were literature and art books. Later, a batch of science and technology books were purchased. At this time, science and technology books accounted for 40% of the existing books. How many science and technology books were purchased? ?

<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>
<gadget id="calculator">1 - (3/10)</gadget>
<output>7/10 = around 0.7</output>
<gadget id="calculator">40 / 100</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">(7/10) / (3/5)</gadget>
<output>7/6 = around 1.166667</output>
<gadget id="calculator">7_200 * (7/6)</gadget>
<output>8_400</output>
<gadget id="calculator">8_400 - 7_200</gadget>
<output>1_200</output>
<result>1_200</result>


六1班女生占全班人数的(3/8)，男生比女生多多少．

Girls in Class 1 account for 3/8 of the whole class, and there are more boys than girls.

<gadget id="calculator">66.7 / 100</gadget>
<output>0.667</output>
<result>0.667</result>


一只蚂蚁沿等边三角形爬行一周，蚂蚁在三条边上的速度分别为每分钟爬行40分米，24分米，15分米，蚂蚁爬行一周的平均速度是每分钟多少分米．

An ant crawls along an equilateral triangle for one circle. The speeds of the ant on the three sides are 40 decimeters, 24 decimeters, and 15 decimeters per minute respectively. What is the average speed of the ant crawling for one circle?


一个数的5倍是965，这个数是多少．

5 times a number is 965, what is this number?

<gadget id="calculator">965 / 5</gadget>
<output>193</output>
<result>193</result>


14个百除以2的商是多少．

What is the quotient of 14 hundred divided by 2?

<gadget id="calculator">1_400 / 2</gadget>
<output>700</output>
<result>700</result>


一项工程，已经完成42%，还剩多少没修．

42% of a project has been completed, and how much is left unrepaired.

<gadget id="calculator">42 / 100</gadget>
<output>21/50 = around 0.42</output>
<gadget id="calculator">1 - (21/50)</gadget>
<output>29/50 = around 0.58</output>
<result>29/50 = around 0.58</result>


有两张一样长的纸条粘贴起来，成为长30厘米的纸条，粘贴部分长10厘米，求这两张纸条各长几厘米？多少

Two strips of the same length are pasted together to form a strip of 30 cm long, and the length of the pasted part is 10 cm. How many centimeters are each of these two strips? How many

<gadget id="calculator">30 + 10</gadget>
<output>40</output>
<gadget id="calculator">40 / 2</gadget>
<output>20</output>
<result>20</result>


菜市场运来韭菜15千克，运来的西红柿是韭菜的16倍，两种蔬菜共多少千克？

The vegetable market shipped 15 kilograms of leeks, and 16 times as many tomatoes as leeks. How many kilograms of the two vegetables are there in total?

<gadget id="calculator">15 * 16</gadget>
<output>240</output>
<gadget id="calculator">240 + 15</gadget>
<output>255</output>
<result>255</result>


一个正方形的周长是(8/29)m，它的面积是多少？

The perimeter of a square is (8/29)m, what is its area?

<gadget id="calculator">8 / 29</gadget>
<output>8/29 = around 0.275862</output>
<gadget id="calculator">(8/29) / 4</gadget>
<output>2/29 = around 0.068966</output>
<gadget id="calculator">(2/29) * (2/29)</gadget>
<output>4/841 = around 0.004756</output>
<result>4/841 = around 0.004756</result>


某车间从4月8日开始每天调入一人，已知每人每天生产1件产品，该车间从4月7日至4月27日共生产840件产品，该车间原有工人多少名．

A workshop starts to transfer one person every day from April 8. It is known that each person produces one product per day. From April 7 to April 27, the workshop produced a total of 840 products. How many workers did the workshop have?

<gadget id="calculator">27 - 7</gadget>
<output>20</output>
<gadget id="calculator">20 + 1</gadget>
<output>21</output>
<gadget id="calculator">21 / 2</gadget>
<output>21/2 = around 10.5</output>
<gadget id="calculator">21 * (21/2)</gadget>
<output>441/2 = around 220.5</output>
<gadget id="calculator">840 - (441/2)</gadget>
<output>1_239/2 = around 619.5</output>
<gadget id="calculator">(21/2) + (1_239/2)</gadget>
<output>630</output>
<gadget id="calculator">(21/2) + (21/2)</gadget>
<output>21</output>
<gadget id="calculator">630 / 21</gadget>
<output>30</output>
<result>30</result>


<gadget id="calculator">2_008 / 2_008</gadget>
<output>1</output>
<gadget id="calculator">2_008 * 1</gadget>
<output>2_008</output>
<result>2_008</result>


1千克苹果可以榨苹果汁(2/3)升．我妈妈买了2千克苹果，每(2/9)升就可装一杯，可榨几杯苹果汁？

1 kg of apples can squeeze (2/3) liters of apple juice. My mother bought 2 kilograms of apples, each (2/9) liter can hold one cup, how many cups of apple juice can be squeezed?

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>
<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>
<gadget id="calculator">2 / (2/9)</gadget>
<output>9</output>
<gadget id="calculator">(2/3) * 9</gadget>
<output>6</output>
<result>6</result>


一种农药，用药液和水按1：100配制而成．要配制这种农药1515千克，需要药液多少千克？(用比例解答)

It is a kind of pesticide, which is made up of liquid medicine and water according to the ratio of 1:100. To prepare 1515 kg of this pesticide, how many kg of liquid medicine is needed? (answer with ratio)

<gadget id="calculator">100 + 1</gadget>
<output>101</output>
<gadget id="calculator">1_515 / 101</gadget>
<output>15</output>
<result>15</result>


养猪厂去年养猪480头，今年比去年多养15%，今年比去年多养猪多少头？

The pig farm raised 480 pigs last year, and this year it raised 15% more than last year. How many more pigs are raised this year than last year?

<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>
<gadget id="calculator">480 * (3/20)</gadget>
<output>72</output>
<result>72</result>


六年级一班50个同学，在毕业茶话会后，一一握手道别．如果他们每两人之间互相都只握一次手，则全班共握手多少次．

After the graduation tea party, 50 students in class one, grade six, shook hands and said goodbye one by one. How many handshakes were there in the class if each of them shook hands with each other only once?

<gadget id="calculator">50 - 1</gadget>
<output>49</output>
<gadget id="calculator">49 / 2</gadget>
<output>49/2 = around 24.5</output>
<gadget id="calculator">50 * (49/2)</gadget>
<output>1_225</output>
<result>1_225</result>


有一长方体的玻璃鱼缸，长是3分米，宽是2分米．放入一块不规则的石头后水深1.5分米，捞出这块石头后，水面下降0.5分米．这块石头的体积是多少．

A cuboid glass fish tank is 3 decimeters long and 2 decimeters wide. The water depth is 1.5 decimeters after an irregular stone is put in, and the water level drops 0.5 decimeters after the stone is removed. What is the volume of this stone.

<gadget id="calculator">3 * 2 * 0.5</gadget>
<output>3</output>
<result>3</result>


一堆大菜共50千克，烧了30千克，这剩下多少．

A pile of big dishes totals 50 kilograms, and 30 kilograms are burnt. How much is left?

<gadget id="calculator">50 - 30</gadget>
<output>20</output>
<gadget id="calculator">20 / 50</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">100 / 100</gadget>
<output>1</output>
<gadget id="calculator">(2/5) * 1</gadget>
<output>2/5 = around 0.4</output>
<result>2/5 = around 0.4</result>


王岭村今年二、三月份开展植树造林活动，二月份植树456棵，离完成计划数还差(1/20)，三月份继续植树后，实际植树数超过原计划的10%，实际植树多少棵？

Wangling Village carried out afforestation activities in February and March this year. In February, 456 trees were planted, which was still short of the planned number (1/20). After continuing to plant trees in March, the actual number of trees planted exceeded 10% of the original plan. tree?

<gadget id="calculator">1 / 20</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">456 / (19/20)</gadget>
<output>480</output>
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>
<gadget id="calculator">1 + (1/10)</gadget>
<output>11/10 = around 1.1</output>
<gadget id="calculator">480 * (11/10)</gadget>
<output>528</output>
<result>528</result>


0.6 and how many are reciprocals of each other.

<gadget id="calculator">1 / 0.6</gadget>
<output>1.666667</output>
<result>1.666667</result>


把19写成两个质数的和是.多少

How much is 19 written as the sum of two prime numbers

<gadget id="calculator">19 - 2</gadget>
<output>17</output>
<gadget id="calculator">2 + 17</gadget>
<output>19</output>
<result>19</result>


有一艘轮船停在港口里，轮船的外舷有一软梯，软梯的第一级正好挨着海面，往上每隔20厘米有一级．这时海水正在涨潮，每小时上涨30厘米．问：经过多长时间，海水涨到软梯的第四级？

There is a ship parked in the port. There is a ladder on the outer side of the ship. The first step of the ladder is just next to the sea surface, and there are steps every 20 centimeters upwards. At this time, the sea water is at high tide, rising 30 centimeters per hour. Question: How long did it take for the sea water to rise to the fourth step of the ladder?

<gadget id="calculator">4 - 1</gadget>
<output>3</output>
<gadget id="calculator">20 * 3</gadget>
<output>60</output>
<gadget id="calculator">60 / 30</gadget>
<output>2</output>
<result>2</result>


一段圆柱体钢长1.8米，底面半径为2分米，每立方分米重7.8千克．这段圆钢重多少千克？

cylinder of steel is 1.8 meters long, has a base radius of 2 decimeters, and weighs 7.8 kilograms per cubic decimeter. How many kilograms does this piece of round steel weigh?

<gadget id="calculator">2 ** 2</gadget>
<output>4</output>
<gadget id="calculator">1.8 * 10</gadget>
<output>18</output>
<gadget id="calculator">3.14 * 4 * 18 * 7.8</gadget>
<output>1_763.424</output>
<result>1_763.424</result>


有一幢楼房高17层，相邻两层间都有17个台阶．某人从一层走到十一层，一共要登多少个台阶．

There is a building with 17 floors high, and there are 17 steps between two adjacent floors. How many steps does a person have to climb from the first floor to the eleventh floor?

<gadget id="calculator">11 - 1</gadget>
<output>10</output>
<gadget id="calculator">17 * 10</gadget>
<output>170</output>
<result>170</result>


超市一天卖出纯奶25箱，是卖出酸奶箱数的(5/8)，卖出酸奶多少箱？

The supermarket sells 25 boxes of pure milk a day, which is (5/8) the number of boxes of yogurt sold. How many boxes of yogurt are sold?

<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>
<gadget id="calculator">25 / (5/8)</gadget>
<output>40</output>
<result>40</result>


一块三角形韭菜地，底为30米，高为20米，若平均每平方米能收韭菜5千克，这块地共能收韭菜多少千克？

A triangular leek field has a base of 30 meters and a height of 20 meters. If an average of 5 kilograms of leeks can be harvested per square meter, how many kilograms of leeks can be harvested in this piece of land?

<gadget id="calculator">20 / 2</gadget>
<output>10</output>
<gadget id="calculator">30 * 10</gadget>
<output>300</output>
<gadget id="calculator">5 * 300</gadget>
<output>1_500</output>
<result>1_500</result>


小红的爸爸用24米长的篱笆围了一块长方形菜地，其中长是9米，宽是多少米？

Xiaohong's father has surrounded a rectangular vegetable field with a 24-meter-long fence, the length of which is 9 meters, and how many meters is the width?

<gadget id="calculator">24 / 2</gadget>
<output>12</output>
<gadget id="calculator">12 - 9</gadget>
<output>3</output>
<result>3</result>


用长5分米，宽4分米的砖，铺长5米，宽4米的地面，需要多少块砖．

How many bricks are needed to pave a floor with a length of 5 meters and a width of 4 meters using bricks with a length of 5 decimeters and a width of 4 decimeters?

<gadget id="calculator">5 / 10</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">4 / 10</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">(1/2) * (2/5)</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">4 / (1/5)</gadget>
<output>20</output>
<gadget id="calculator">5 * 20</gadget>
<output>100</output>
<result>100</result>


91.2/24和多少的结果相等．

<gadget id="calculator">91.2 / 24</gadget>
<output>3.8</output>
<result>3.8</result>


算式：1*4*7*10*…*N，这些自然数的公差是3，当乘以N时乘积的末尾第一次出现连续10个零，则N是多少．

Calculation formula: 1*4*7*10*...*N, the tolerance of these natural numbers is 3, when multiplying by N, the end of the product appears 10 consecutive zeros for the first time, then what is N?


有一块长方形菜地，长42米，宽16米，这块菜地的面积是多少平方米？

There is a rectangular vegetable field with a length of 42 meters and a width of 16 meters. What is the area of this vegetable field in square meters?

<gadget id="calculator">42 * 16</gadget>
<output>672</output>
<result>672</result>


有两个书架，甲书架有书120本，乙书架有书80本，每次从甲书架拿出5本放入乙书架，拿多少次后两个书架的书相等．

There are two bookshelves, A bookshelf has 120 books, B bookshelf has 80 books, take out 5 books from A bookshelf and put them in B bookshelf every time, after how many times you take them, the books on the two bookshelves are equal.

<gadget id="calculator">120 - 80</gadget>
<output>40</output>
<gadget id="calculator">40 / 2 / 5</gadget>
<output>4</output>
<result>4</result>


小军练习投篮，第一、二两轮平均成绩是34个，第三个的成绩是37个．三轮投篮的平均成绩是多少？

Xiaojun practiced shooting. The average score in the first and second rounds was 34, and the third round was 37. What is the average score for the three-round shot?

<gadget id="calculator">34 * 2</gadget>
<output>68</output>
<gadget id="calculator">68 + 37</gadget>
<output>105</output>
<gadget id="calculator">105 / 3</gadget>
<output>35</output>
<result>35</result>


一台拖拉机(3/10)小时耕地(7/8)公顷，照这样计算，平均每小时耕地多少公顷？正确算式是多少

A tractor can cultivate (7/8) hectares of land in (3/10) hours. According to this calculation, how many hectares of land can be cultivated per hour on average? what is the correct formula

<gadget id="calculator">7 / 8</gadget>
<output>7/8 = around 0.875</output>
<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>
<gadget id="calculator">(7/8) / (3/10)</gadget>
<output>35/12 = around 2.916667</output>
<result>35/12 = around 2.916667</result>


一块长方形的绿地，原来的面积是480平方米．扩建后宽由原来的8米增加到40米，长不变．扩建后这块长方形地的面积是多少平方米？

A rectangular green space, the original area is 480 square meters. After expansion, the width is increased from 8 meters to 40 meters, and the length remains unchanged. What is the area of the rectangular land after expansion?

<gadget id="calculator">480 / 8</gadget>
<output>60</output>
<gadget id="calculator">60 * 40</gadget>
<output>2_400</output>
<result>2_400</result>


希望小学准备举办一场歌唱祖国的歌唱比赛．原计划搭建一个宽6米，面积为162平方米的长方形舞台，后来由于参加的人数较多，现计划舞台长不变，把宽增加到18米，现在的舞台面积是多少平方米？

Hope Primary School is going to hold a singing competition to sing about the motherland. It was originally planned to build a rectangular stage with a width of 6 meters and an area of 162 square meters. Later, due to the large number of participants, the current plan is to keep the length of the stage unchanged and increase the width to 18 meters. How many square meters is the current stage area?

<gadget id="calculator">162 / 6</gadget>
<output>27</output>
<gadget id="calculator">27 * 18</gadget>
<output>486</output>
<result>486</result>


<gadget id="calculator">22 * 18</gadget>
<output>396</output>
<gadget id="calculator">396 + 11</gadget>
<output>407</output>
<result>407</result>


小文想买两种笔记本各一本，其中一种一本12.5元，另一种一本23.8元，那么她一共需要花多少元钱？

Xiaowen wants to buy two kinds of notebooks, one for 12.5 yuan and the other for 23.8 yuan, so how much does she need to spend in total?

<gadget id="calculator">12.5 + 23.8</gadget>
<output>36.3</output>
<result>36.3</result>


一列长350米的火车以12米/秒的速度行驶，并排的公路上一辆长10米的卡车以16米/秒的速度从后面驶来，卡车从追上到超过火车需要多少秒．

A train with a length of 350 meters is traveling at a speed of 12 meters per second, and a truck with a length of 10 meters is coming from behind at a speed of 16 meters per second on the side-by-side road. How many seconds does it take for the truck to overtake the train?

<gadget id="calculator">350 + 10</gadget>
<output>360</output>
<gadget id="calculator">16 - 12</gadget>
<output>4</output>
<gadget id="calculator">360 / 4</gadget>
<output>90</output>
<result>90</result>


等底的圆柱和圆锥，如果它们的体积相等，圆柱的高是3厘米，那么圆锥的高是多少厘米．

If a cylinder and a cone with equal bases have the same volume and the height of the cylinder is 3 cm, what is the height of the cone in cm?

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


有种水草每天能长一倍，8天能长满一池塘．长满半池塘要多少天．

There is a kind of aquatic plant that doubles in size every day, and can fill a pond in 8 days. How many days will it take to fill half of the pond?

<gadget id="calculator">8 - 1</gadget>
<output>7</output>
<result>7</result>


两个数的最小公倍数是180，最大公因数是30，其中一个数是90，另一个数是多少．

The least common multiple of two numbers is 180, the greatest common factor is 30, one of them is 90, what is the other number.

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


15加上一个数的40%，正好等于20，求这个数．

15 plus 40% of a number is exactly equal to 20. Find this number.

<gadget id="calculator">20 - 15</gadget>
<output>5</output>
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">5 / (2/5)</gadget>
<output>25/2 = around 12.5</output>
<result>25/2 = around 12.5</result>


一个底面直径是20cm的圆柱形容器，容器内的水中浸没着一个底面周长是37.68cm，高是20cm的圆锥形铁块，当取出铁块后，容器内水面下降了多少厘米？

A cylindrical container with a bottom diameter of 20 cm is immersed in the water in the container with a conical iron block with a bottom circumference of 37.68 cm and a height of 20 cm. When the iron block is taken out, how many centimeters does the water level in the container drop?

<gadget id="calculator">37.68 / 3.14 / 2</gadget>
<output>6</output>
<gadget id="calculator">6 ** 2</gadget>
<output>36</output>
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">20 / 2</gadget>
<output>10</output>
<gadget id="calculator">10 ** 2</gadget>
<output>100</output>
<gadget id="calculator">3.14 * 100</gadget>
<output>314</output>
<gadget id="calculator">(1/3) / 314</gadget>
<output>1/942 = around 0.001062</output>
<gadget id="calculator">3.14 * 36 * 20 * (1/942)</gadget>
<output>2.4</output>
<result>2.4</result>


一个正方体的底面周长是24厘米，正方体的表面积是多少．

If the perimeter of the base of a cube is 24 cm, what is the surface area of the cube?

<gadget id="calculator">24 / 4</gadget>
<output>6</output>
<gadget id="calculator">6 * 6 * 6</gadget>
<output>216</output>
<result>216</result>


汽车以每小时45千米的速度从甲地开往乙地，40分钟后，已知已行的路程与余下的路程比是1：2，问甲、乙两地相距多少千米？

car drives from place A to place B at a speed of 45 kilometers per hour. After 40 minutes, the ratio of the known distance traveled to the remaining distance is 1:2. How many kilometers is the distance between places A and B?

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>
<gadget id="calculator">45 * (2/3)</gadget>
<output>30</output>
<gadget id="calculator">1 + 2</gadget>
<output>3</output>
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">30 / (1/3)</gadget>
<output>90</output>
<result>90</result>


把一根底面直径是2分米的圆柱形木料锯成3段后，表面积增加了多少平方分米．

How many square decimeters is added to the surface area of a cylindrical piece of wood with a base diameter of 2 decimeters when it is sawn into 3 sections?

<gadget id="calculator">2 / 2</gadget>
<output>1</output>
<gadget id="calculator">1 ** 2</gadget>
<output>1</output>
<gadget id="calculator">3.14 * 1 * 4</gadget>
<output>12.56</output>
<result>12.56</result>


将25克盐放入100克水中，这时盐水的含盐率为多少

Put 25 grams of salt into 100 grams of water, what is the salt content of the salt water?

<gadget id="calculator">100 + 25</gadget>
<output>125</output>
<gadget id="calculator">25 / 125</gadget>
<output>1/5 = around 0.2</output>
<result>1/5 = around 0.2</result>


王师傅要加工500个零件，工作了3小时还剩80个零件没有做完．王师傅平均每小时加工多少个零件？

Master Wang has to process 500 parts. After working for 3 hours, there are still 80 parts left to be finished. How many parts does Master Wang process per hour?

<gadget id="calculator">500 - 80</gadget>
<output>420</output>
<gadget id="calculator">420 / 3</gadget>
<output>140</output>
<result>140</result>


把一个体积为27dm**3的圆柱形木料削成一个等底等高的圆锥，应削去多少dm**3的木料．

If a cylindrical wood with a volume of 27dm**3 is cut into a cone with the same base and height, how much dm**3 wood should be cut.

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">27 * (1/3)</gadget>
<output>9</output>
<gadget id="calculator">27 - 9</gadget>
<output>18</output>
<result>18</result>


六年级有15人参加了科学社团，占全年级人数的(1/20)，参加航模社团的人数占全年级人数的(1/15)．参加航模社团的有多少人？

In the sixth grade, 15 people participated in the science club, accounting for (1/20) of the whole grade, and the number of participating in the aircraft model club accounted for (1/15) of the whole grade. How many people participate in the aircraft model club?

<gadget id="calculator">1 / 20</gadget>
<output>1/20 = around 0.05</output>
<gadget id="calculator">15 / (1/20)</gadget>
<output>300</output>
<gadget id="calculator">1 / 15</gadget>
<output>1/15 = around 0.066667</output>
<gadget id="calculator">300 * (1/15)</gadget>
<output>20</output>
<result>20</result>


上山的速度是3千米/时，下山的速度是6千米/时．求上山后又下山的平均速度．

The speed up the hill is 3 km/h and the speed down the hill is 6 km/h. Find the average speed of going up the hill and then down the hill.

<gadget id="calculator">1 * 2</gadget>
<output>2</output>
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">(1/3) + (1/6)</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">2 / (1/2)</gadget>
<output>4</output>
<result>4</result>


把两个棱长是8厘米的正方体木块粘合成一个长方体，这个长方体的表面积是多少平方厘米．

What is the surface area of this cuboid in square centimeters if two cubes of wood with side lengths of 8 cm are glued together to form a cuboid?

<gadget id="calculator">8 * 8 * 6 * 2</gadget>
<output>768</output>
<gadget id="calculator">8 * 8 * 2</gadget>
<output>128</output>
<gadget id="calculator">768 - 128</gadget>
<output>640</output>
<result>640</result>


两个数的和是108，且一个数是另一个数的3倍，则较小的数是多少

The sum of two numbers is 108 and one is 3 times the other, what is the smaller number?

<gadget id="calculator">3 + 1</gadget>
<output>4</output>
<gadget id="calculator">108 / 4</gadget>
<output>27</output>
<result>27</result>


鸡兔同笼，共有24个头，68只脚，鸡有多少只．

Chickens and rabbits are in the same cage. There are 24 heads and 68 feet. How many chickens are there?

<gadget id="calculator">24 * 4</gadget>
<output>96</output>
<gadget id="calculator">96 - 68</gadget>
<output>28</output>
<gadget id="calculator">4 - 2</gadget>
<output>2</output>
<gadget id="calculator">28 / 2</gadget>
<output>14</output>
<result>14</result>


半圆的周长是25.7厘米，它的面积是多少平方厘米？

The circumference of a semicircle is 25.7 cm, what is its area in square centimeters?

<gadget id="calculator">3.14 + 2</gadget>
<output>5.14</output>
<gadget id="calculator">25.7 / 5.14</gadget>
<output>5</output>
<gadget id="calculator">5 ** 2</gadget>
<output>25</output>
<gadget id="calculator">25 / 2</gadget>
<output>25/2 = around 12.5</output>
<gadget id="calculator">3.14 * (25/2)</gadget>
<output>39.25</output>
<result>39.25</result>


一块三角形实验田，底是80m，比高长15m，这块实验田共收390kg菜籽，平均每平方米收菜籽多少千克？

A triangular experimental field has a base of 80m and a specific height of 15m. This experimental field harvests a total of 390kg of rapeseed. How many kilograms of rapeseed is harvested on average per square meter?

<gadget id="calculator">80 - 15</gadget>
<output>65</output>
<gadget id="calculator">65 / 2</gadget>
<output>65/2 = around 32.5</output>
<gadget id="calculator">80 * (65/2)</gadget>
<output>2_600</output>
<gadget id="calculator">390 / 2_600</gadget>
<output>3/20 = around 0.15</output>
<result>3/20 = around 0.15</result>


两个因数都是48，积是多少？

Both factors are 48, what is the product?

<gadget id="calculator">48 * 48</gadget>
<output>2_304</output>
<result>2_304</result>


有一个圆柱和一个圆锥，圆柱的底面半径是圆锥的(2/3)，圆柱的高是圆锥的(5/4)，那么圆柱的体积是圆锥的多少．

There is a cylinder and a cone, the radius of the base of the cylinder is 2/3 of the cone, and the height of the cylinder is 5/4 of the cone, then the volume of the cylinder is the volume of the cone.

<gadget id="calculator">2 ** 2</gadget>
<output>4</output>
<gadget id="calculator">3.14 * 4 * 5</gadget>
<output>62.8</output>
<gadget id="calculator">3 ** 2</gadget>
<output>9</output>
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">3.14 * 9 * 4 * (1/3)</gadget>
<output>37.68</output>
<gadget id="calculator">62.8 / 37.68</gadget>
<output>1.666667</output>
<result>1.666667</result>


校田径队女生人数占总数的(2/9)，本学期又新加入6名女生，这时，女生人数占总数的(1/3)，现在女生有多少人？

The number of girls in the school track and field team accounts for 2/9 of the total, and 6 girls have been added this semester. At this time, the number of girls accounts for 1/3 of the total. How many girls are there now?

<gadget id="calculator">3 - 1</gadget>
<output>2</output>
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">9 - 2</gadget>
<output>7</output>
<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>
<gadget id="calculator">(1/2) - (2/7)</gadget>
<output>3/14 = around 0.214286</output>
<gadget id="calculator">6 / (3/14)</gadget>
<output>28</output>
<result>28</result>


学校有若干学生在排练体操，5人一行余2人，7人一行余2人，做操的至少有多少名学生．

There are a number of students in the school who are rehearsing gymnastics. There are more than 2 students in a group of 5 people, and 2 people in a group of 7 people. At least how many students are doing exercises.

<gadget id="calculator">5 * 7</gadget>
<output>35</output>
<gadget id="calculator">35 + 2</gadget>
<output>37</output>
<result>37</result>


9+99+999+9999+99999=? How to calculate easier? Please write down the main process.


甲、乙两地相距20千米，每隔4千米设一个站牌，甲、乙两地之间一共设有多少个站牌？(甲、乙两地除外)

The distance between A and B is 20 kilometers, and there is a stop sign every 4 kilometers. How many stop signs are there between A and B? (except places A and B)

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


<gadget id="calculator">4_221 ** 2</gadget>
<output>17_816_841</output>
<gadget id="calculator">21 ** 2</gadget>
<output>441</output>
<gadget id="calculator">17_816_841 - 441</gadget>
<output>17_816_400</output>
<gadget id="calculator">42 ** 2</gadget>
<output>1_764</output>
<gadget id="calculator">1_764 * 101</gadget>
<output>178_164</output>
<gadget id="calculator">17_816_400 / 178_164</gadget>
<output>100</output>
<result>100</result>


一辆汽车(1/10)小时行(11/2)千米，求这辆汽车每小时行多少千米．正确的列式是多少

A car travels (11/2) kilometers per hour (1/10), how many kilometers does this car travel per hour? What is the correct column

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


一辆汽车用四天行完一段路程，第一天行驶了360千米，第二天行驶了余下路程的(2/7)，第三、四天行驶了全程的一半．这段路程全长多少千米？

A car travels a distance in four days, 360 kilometers on the first day, 2/7 of the remaining distance on the second day, and half of the distance on the third and fourth days. How many kilometers is this distance?

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>
<gadget id="calculator">1 - (2/7)</gadget>
<output>5/7 = around 0.714286</output>
<gadget id="calculator">(1/2) / (5/7)</gadget>
<output>7/10 = around 0.7</output>
<gadget id="calculator">1 - (7/10)</gadget>
<output>3/10 = around 0.3</output>
<gadget id="calculator">360 / (3/10)</gadget>
<output>1_200</output>
<result>1_200</result>


A除以13，商正好是5的倒数，A是多少．

A divided by 13, the quotient is exactly the reciprocal of 5, what is A?

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">(1/5) * 13</gadget>
<output>13/5 = around 2.6</output>
<result>13/5 = around 2.6</result>


在一个停车场，共有24辆车，其中汽车是4个轮子，摩托车是3个轮子，这些车共有86个轮子，那么汽车有多少辆．

In a parking lot, there are 24 cars in total, among which the cars have 4 wheels and the motorcycles have 3 wheels. These cars have 86 wheels in total, so how many cars are there?

<gadget id="calculator">24 * 4</gadget>
<output>96</output>
<gadget id="calculator">96 - 86</gadget>
<output>10</output>
<gadget id="calculator">4 - 3</gadget>
<output>1</output>
<gadget id="calculator">10 / 1</gadget>
<output>10</output>
<gadget id="calculator">24 - 10</gadget>
<output>14</output>
<result>14</result>


将1～9九个自然数分成三组，每组三个数，第一组三个数之积是48，第二组三个数之积是45，第三组三个数之和最大是多少．

Divide the nine natural numbers from 1 to 9 into three groups, each group has three numbers, the product of the first group of three numbers is 48, the second group of three numbers is 45, what is the maximum sum of the third group of three numbers ．

<gadget id="calculator">3 + 7 + 8</gadget>
<output>18</output>
<result>18</result>


苹果园里有苹果树和桃树共840棵，其中苹果树有20行，每行24棵，如果桃树有15行，平均每行桃树有多少棵？

There are 840 apple trees and peach trees in the apple orchard. Among them, there are 20 rows of apple trees, and each row has 24 trees. If there are 15 rows of peach trees, how many peach trees are there on average in each row?

<gadget id="calculator">24 * 20</gadget>
<output>480</output>
<gadget id="calculator">840 - 480</gadget>
<output>360</output>
<gadget id="calculator">360 / 15</gadget>
<output>24</output>
<result>24</result>


一个数，乘以2再减去31，加上26后除以9，结果为7，这个数是多少．

number, multiplied by 2, subtracted 31, added 26 and divided by 9, the result is 7, what is this number?

<gadget id="calculator">7 * 9</gadget>
<output>63</output>
<gadget id="calculator">63 - 26</gadget>
<output>37</output>
<gadget id="calculator">37 + 31</gadget>
<output>68</output>
<gadget id="calculator">68 / 2</gadget>
<output>34</output>
<result>34</result>


修一段公路，原计划15天修完，实际所用天数与计划天数的比是4：5．实际平均每天的工作效率提高了百分之几？

The repair of a section of road was originally planned to be completed in 15 days, but the ratio of the actual number of days used to the planned number of days is 4:5. By what percentage did the actual average daily work efficiency increase?

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">15 * (4/5)</gadget>
<output>12</output>
<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>
<gadget id="calculator">1 / 15</gadget>
<output>1/15 = around 0.066667</output>
<gadget id="calculator">(1/12) - (1/15)</gadget>
<output>1/60 = around 0.016667</output>
<gadget id="calculator">(1/60) / (1/15)</gadget>
<output>1/4 = around 0.25</output>
<result>1/4 = around 0.25</result>


<gadget id="calculator">5 / 2</gadget>
<output>5/2 = around 2.5</output>
<gadget id="calculator">8 * (5/2)</gadget>
<output>20</output>
<gadget id="calculator">20 / 2</gadget>
<output>10</output>
<result>10</result>


一捆电线长1500米，第一次用去398米，第二次用去475米．这捆电线比原来短了多少米？

A bundle of wires is 1500 meters long, 398 meters are used for the first time, and 475 meters are used for the second time. How many meters is this bundle of wires shorter than the original?

<gadget id="calculator">398 + 475</gadget>
<output>873</output>
<result>873</result>


有一根铁丝，折成一个△，这个三角形每条边长4分米．如果把这根铁丝折成一个正方形，正方形的面积是多少．

There is an iron wire, folded into a △, the length of each side of this triangle is 4 decimeters. If the wire is folded into a square, what is the area of the square?

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">4 * (3/4)</gadget>
<output>3</output>
<gadget id="calculator">3 * 3</gadget>
<output>9</output>
<result>9</result>


<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">1 - (1/2)</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">(1/2) - (1/4)</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>
<gadget id="calculator">(1/4) - (1/8)</gadget>
<output>1/8 = around 0.125</output>
<gadget id="calculator">1 / 31</gadget>
<output>1/31 = around 0.032258</output>
<gadget id="calculator">1 / 62</gadget>
<output>1/62 = around 0.016129</output>
<gadget id="calculator">(1/31) - (1/62)</gadget>
<output>1/62 = around 0.016129</output>
<gadget id="calculator">1 / 124</gadget>
<output>1/124 = around 0.008065</output>
<gadget id="calculator">(1/62) - (1/124)</gadget>
<output>1/124 = around 0.008065</output>
<gadget id="calculator">1 / 248</gadget>
<output>1/248 = around 0.004032</output>
<gadget id="calculator">(1/124) - (1/248)</gadget>
<output>1/248 = around 0.004032</output>
<gadget id="calculator">1 / 496</gadget>
<output>1/496 = around 0.002016</output>
<gadget id="calculator">(1/248) - (1/496)</gadget>
<output>1/496 = around 0.002016</output>
<gadget id="calculator">(1/2) + (1/4) + (1/8) + (1/31) + (1/62) + (1/124) + (1/248) + (1/496)</gadget>
<output>15/16 = around 0.9375</output>
<result>15/16 = around 0.9375</result>


货车和客车同时从甲城开往乙城．货车每小时行40千米，客车每小时行60千米，客车中途停留2小时，但是仍然比货车早到半小时．甲乙两城相距多少千米．

A truck and a bus drive from city A to city B at the same time. The truck travels 40 kilometers per hour, the bus travels 60 kilometers per hour, and the bus stops for 2 hours, but it still arrives half an hour earlier than the truck. How many kilometers are there between the two cities?

<gadget id="calculator">60 * 2.5</gadget>
<output>150</output>
<gadget id="calculator">60 - 40</gadget>
<output>20</output>
<gadget id="calculator">150 / 20</gadget>
<output>15/2 = around 7.5</output>
<gadget id="calculator">(15/2) - 2.5</gadget>
<output>5</output>
<gadget id="calculator">60 * 5</gadget>
<output>300</output>
<result>300</result>


王亮有35本课外读物，其中的(2/5)是科技书．王亮的科技书有多少本？

Wang Liang has 35 extra-curricular reading materials, among which (2/5) are science and technology books. How many technical books does Wang Liang have?

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">35 * (2/5)</gadget>
<output>14</output>
<result>14</result>


仓库有货物168吨，第一次运走(3/8)，第二次运走剩下的(5/7)，第二次运走了多少吨？

There are 168 tons of goods in the warehouse, the first shipment (3/8), the second shipment of the rest (5/7), how many tons were the second shipment?

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>
<gadget id="calculator">1 - (3/8)</gadget>
<output>5/8 = around 0.625</output>
<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>
<gadget id="calculator">168 * (5/8) * (5/7)</gadget>
<output>75</output>
<result>75</result>


巡警小王在犯罪现场发现一只脚印，他把随身携带的一张百元钞票放在脚印旁进行拍照，照片送到刑事科，他们测得照片中的脚印和钞票的长度分别为5厘米和3.1厘米，一张百元钞票的实际长度大约为15.5cm，请问脚印的实际长度为多少码．(说明：鞋的尺码是指鞋底的长度，通常用"码"或"厘米"作单位，它们之间的关系可以用y=2x-10来表示，其中y表示码数，x表示厘米数)．

Patrolman Xiao Wang found a footprint at the crime scene. He took a hundred-yuan bill next to the footprint and took a photo. The photo was sent to the criminal department. They measured the length of the footprint and the banknote in the photo to be 5 cm and 3.1 cm respectively. , the actual length of a hundred-yuan banknote is about 15.5cm, what is the actual length of the footprints? (Explanation: The size of the shoe refers to the length of the sole, usually in "yard" or "centimeter", the relationship between them can be expressed by y=2x-10, where y represents the number of yards and x represents the number of centimeters) ．

<gadget id="calculator">5 * 15.5</gadget>
<output>77.5</output>
<gadget id="calculator">77.5 / 3.1</gadget>
<output>25</output>
<gadget id="calculator">2 * 25</gadget>
<output>50</output>
<gadget id="calculator">50 - 10</gadget>
<output>40</output>
<result>40</result>


一座体育馆的围墙是圆形的，李军沿着围墙走了一圈，一共是942步，李军每步的长大约是0.5米，这座体育馆的占地面积大约是多少平方米？

The wall of a gymnasium is circular. Li Jun walks around the wall, a total of 942 steps. The length of each step of Li Jun is about 0.5 meters. How many square meters does this gymnasium occupy?

<gadget id="calculator">0.5 * 942</gadget>
<output>471</output>
<gadget id="calculator">471 / 3.14 / 2</gadget>
<output>75</output>
<gadget id="calculator">75 ** 2</gadget>
<output>5_625</output>
<gadget id="calculator">3.14 * 5_625</gadget>
<output>17_662.5</output>
<result>17_662.5</result>


小马虎在计算一个整十数乘7时，把这个整十数末尾的0看丢了，结果比正确的结果少了189，正确的结果是多少？

When the little sloppy calculates a whole tens number multiplied by 7, he loses sight of the 0 at the end of the whole tens number, and the result is 189 less than the correct result. What is the correct result?

<gadget id="calculator">10 - 1</gadget>
<output>9</output>
<gadget id="calculator">189 / 9</gadget>
<output>21</output>
<gadget id="calculator">21 * 10</gadget>
<output>210</output>
<result>210</result>


两个连在一起的皮带轮，大轮的直径为54厘米，小轮的半径为9厘米，大轮转5周，小轮要转多少周？

Two connected pulleys, the diameter of the big pulley is 54 cm, the radius of the small pulley is 9 cm, the big pulley makes 5 revolutions, how many revolutions does the small pulley take?

<gadget id="calculator">3.14 * 54 * 5</gadget>
<output>847.8</output>
<gadget id="calculator">3.14 * 9 * 2</gadget>
<output>56.52</output>
<gadget id="calculator">847.8 / 56.52</gadget>
<output>15</output>
<result>15</result>


一台榨油机(3/5)小时榨油(1/4)吨，则榨1吨油需要几小时？正确的列式是多少

If an oil press presses (1/4) ton of oil in (3/5) hours, how many hours does it take to press 1 ton of oil? What is the correct column

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">(3/5) / (1/4)</gadget>
<output>12/5 = around 2.4</output>
<result>12/5 = around 2.4</result>


一个圆柱体的高减少2厘米，表面积就减少12.56平方厘米，如果这时高比原来减少(1/5)，那么原来这个圆柱体的体积是多少立方厘米．

If the height of a cylinder is reduced by 2 cm, the surface area will be reduced by 12.56 square centimeters. If the height is reduced by 1/5, what is the original volume of the cylinder in cubic centimeters?

<gadget id="calculator">12.56 / 2 / 3.14 / 2</gadget>
<output>1</output>
<gadget id="calculator">1 ** 2</gadget>
<output>1</output>
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">2 / (1/5)</gadget>
<output>10</output>
<gadget id="calculator">3.14 * 1 * 10</gadget>
<output>31.4</output>
<result>31.4</result>


学校要砌一道长20米，厚0.25米，高3米的砖墙，如果每立方米用砖510块．一共需要多少块砖？

The school needs to build a brick wall with a length of 20 meters, a thickness of 0.25 meters and a height of 3 meters. If 510 bricks are used per cubic meter. How many bricks are needed in total?

<gadget id="calculator">20 * 0.25 * 3</gadget>
<output>15</output>
<gadget id="calculator">510 * 15</gadget>
<output>7_650</output>
<result>7_650</result>


实验小学四年级学生3个班同学去郊区共植树432棵，每个班36人，平均每人植树多少棵？(两种方法)

Three classes of fourth-grade students in the experimental primary school went to the suburbs to plant a total of 432 trees. There were 36 students in each class. How many trees were planted by each person on average? (two methods)

<gadget id="calculator">432 / 3 / 36</gadget>
<output>4</output>
<result>4</result>


8、9的最小公倍数是多少．

What is the least common multiple of 8 and 9?

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


六2班男生人数比女生多(1/3)，则女生人数比女生人数少多少．

If there are more boys than girls in Class 6 (1/3), how much less girls are there than girls?

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


(4/15)的分子加8，要使分数值不变，分母应加多少．

Add 8 to the numerator of (4/15), how much should be added to the denominator to keep the fraction value unchanged.

<gadget id="calculator">15 * 3</gadget>
<output>45</output>
<gadget id="calculator">45 - 15</gadget>
<output>30</output>
<result>30</result>


a，b为自然数，且56a+392b为完全平方数，求a+b的最小值．

a, b are natural numbers, and 56a+392b is a perfect square number, find the minimum value of a+b.


学校买来一批笤帚，李老师想平均分给全校24个班，如果每班分6把，还差5把不够分．买来的笤帚是多少把？

The school bought a batch of brooms, and Mr. Li wanted to distribute them to 24 classes in the school on average. If each class was divided into 6 brooms, 5 brooms would not be enough. How many brooms did you buy?

<gadget id="calculator">24 * 6</gadget>
<output>144</output>
<gadget id="calculator">144 - 5</gadget>
<output>139</output>
<result>139</result>


一本故事书有120页，小明第一天读了全书的(1/6)，第二天读了第一天所读页数的(3/4)，第三天应从第几页读起？

A story book has 120 pages. Xiao Ming read (1/6) of the whole book on the first day, and (3/4) of the pages read on the first day on the second day. On the third day, which page should he read from? ?


学校操场长65米，宽50米，小强每天绕操场跑3圈锻炼身体．他每天要跑多少米？

The school playground is 65 meters long and 50 meters wide. Xiaoqiang runs around the playground 3 times a day to exercise. How many meters does he run every day?

<gadget id="calculator">50 + 65</gadget>
<output>115</output>
<gadget id="calculator">115 * 2 * 3</gadget>
<output>690</output>
<result>690</result>


等腰三角形的周长是70厘米，一条腰与底边长度的比是3：4，这个三角形的底边是多少厘米？

The perimeter of an isosceles triangle is 70 cm, and the ratio of the length of one waist to the base is 3:4. How many centimeters is the base of this triangle?

<gadget id="calculator">3 + 3 + 4</gadget>
<output>10</output>
<gadget id="calculator">4 / 10</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">70 * (2/5)</gadget>
<output>28</output>
<result>28</result>


某班有男生25人，女生20人，女生比男生少几分之几？

There are 25 boys and 20 girls in a certain class, how much less girls than boys?

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


蔬菜公司卖出花菜65千克，卖出的白菜是花菜的5倍还多35千克．卖出白菜多少千克？

The vegetable company sells 65 kilograms of cauliflower, and 35 kilograms more cabbage than the cauliflower, which is five times. How many kilograms of cabbage are sold?

<gadget id="calculator">65 * 5</gadget>
<output>325</output>
<gadget id="calculator">325 + 35</gadget>
<output>360</output>
<result>360</result>


姐姐有44枚邮票，姐姐给妹妹6枚邮票后，两人的邮票就一样多了，妹妹原来有多少枚邮票？

The older sister has 44 stamps. After the older sister gives the younger sister 6 stamps, the two have the same number of stamps. How many stamps did the younger sister have?

<gadget id="calculator">6 * 2</gadget>
<output>12</output>
<gadget id="calculator">44 - 12</gadget>
<output>32</output>
<gadget id="calculator">32 / 2</gadget>
<output>16</output>
<result>16</result>


<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>
<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>
<gadget id="calculator">(3/4) + (1/12)</gadget>
<output>5/6 = around 0.833333</output>
<gadget id="calculator">1 - (5/6)</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">(5/6) / (1/6)</gadget>
<output>5</output>
<result>5</result>


陈叔叔和李阿姨共同获得一笔奖金，原打算把这笔奖金平均分配，后来为了体现"多劳多得"的原则，根据两人所做贡献的大小按3：2分配，于是陈叔叔比原来多分配了200元．这笔奖金共多少元？

Uncle Chen and Aunt Li jointly received a bonus. They originally planned to distribute the bonus equally. Later, in order to reflect the principle of "more work, more pay", they distributed it according to the contribution of the two people at a rate of 3:2. It turned out that an extra 200 yuan was allocated. How much is the bonus?

<gadget id="calculator">3 + 2</gadget>
<output>5</output>
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">(3/5) - (1/2)</gadget>
<output>1/10 = around 0.1</output>
<gadget id="calculator">200 / (1/10)</gadget>
<output>2_000</output>
<result>2_000</result>


一个数除以8，商是140，并且有余数．被除数最大是多少

When a number is divided by 8, the quotient is 140 and there is a remainder. What is the largest divisor

<gadget id="calculator">140 * 8</gadget>
<output>1_120</output>
<gadget id="calculator">8 - 1</gadget>
<output>7</output>
<gadget id="calculator">1_120 + 7</gadget>
<output>1_127</output>
<result>1_127</result>


用2、5、8任意组合成的三位数一定是能被多少整除

Any three-digit number composed of 2, 5, and 8 must be divisible by how many


两辆汽车分别同时从A、B两地出发，相向而行，4h后，两车还相距171km，又过3h，两车又相距171km，求A、B两地相距多少km？

Two cars start from places A and B at the same time and drive toward each other. After 4 hours, the distance between the two cars is still 171 km, and after another 3 hours, the distance between the two cars is 171 km. How many kilometers are the distance between places A and B?

<gadget id="calculator">171 + 171</gadget>
<output>342</output>
<gadget id="calculator">342 / 3</gadget>
<output>114</output>
<gadget id="calculator">114 * 4</gadget>
<output>456</output>
<gadget id="calculator">456 + 171</gadget>
<output>627</output>
<result>627</result>


一个车轮的直径为55cm，车轮转动一百周，大约前进多少米？

The diameter of a wheel is 55 cm, how many meters does the wheel move in 100 revolutions?

<gadget id="calculator">55 / 100</gadget>
<output>11/20 = around 0.55</output>
<gadget id="calculator">3.14 * (11/20) * 100</gadget>
<output>172.7</output>
<result>172.7</result>


一个等腰梯形的周长是84厘米，它的上底是16厘米，下底是22厘米，它的一条腰是多少厘米？

The perimeter of an isosceles trapezoid is 84 cm, its upper base is 16 cm, and its lower base is 22 cm. How many centimeters is its waist?

<gadget id="calculator">84 - 16 - 22</gadget>
<output>46</output>
<gadget id="calculator">46 / 2</gadget>
<output>23</output>
<result>23</result>


一只蜗牛不小心掉进了井里．它每天不停地往上爬．不幸的是，它每天白天能往上爬3米，可是一到夜里就要滑下2米．但是小虫还是坚持往上爬．这口井从井底到井口是10米．蜗牛从清晨开始从井底往上爬．它需要几天以后才能爬出井口呢？

A snail accidentally fell into the well. It keeps climbing up every day. Unfortunately, it can climb up 3 meters every day during the day, but it will slide down 2 meters at night. But the bug still insisted on climbing up. The well is 10 meters from the bottom to the mouth of the well. The snail starts to climb up from the bottom of the well in the early morning. How many days does it take to climb out of the wellhead?

<gadget id="calculator">10 - 3</gadget>
<output>7</output>
<gadget id="calculator">3 - 2</gadget>
<output>1</output>
<gadget id="calculator">7 / 1</gadget>
<output>7</output>
<gadget id="calculator">7 + 1</gadget>
<output>8</output>
<result>8</result>


三年级学生到果园里做义务劳动，女生有56人，男生有64人．每6名学生分成一个小组，一共可以分成多少个小组？

The third-grade students went to do voluntary labor in the orchard. There were 56 girls and 64 boys. Every 6 students are divided into a group, how many groups can they be divided into?

<gadget id="calculator">56 + 64</gadget>
<output>120</output>
<gadget id="calculator">120 / 6</gadget>
<output>20</output>
<result>20</result>


一个圆形池塘，它的周长是150米，每隔3米栽1棵树．一共栽了多少棵树？

A circular pond has a circumference of 150 meters and a tree is planted every 3 meters. How many trees were planted in total?

<gadget id="calculator">150 / 3</gadget>
<output>50</output>
<result>50</result>


做8节底面周长为25.12分米，长2米的圆柱形铁皮烟筒，至少要用铁皮多少平方米？

It is 25.12 decimeters to make 8 joints, and the bottom surface perimeter is 25.12 decimeters, and the cylindrical iron chimney of 2 meters, at least how many square meters must use the iron sheet?

<gadget id="calculator">25.12 / 10</gadget>
<output>2.512</output>
<gadget id="calculator">2.512 * 2 * 8</gadget>
<output>40.192</output>
<result>40.192</result>


甲数是乙数的(2/5)，乙数是丙数的(3/8)，丙数是6，甲数是多少．

The number of A is the number of B (2/5), the number of B is the number of C (3/8), the number of C is 6, what is the number of A?

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">6 * (3/8) * (2/5)</gadget>
<output>9/10 = around 0.9</output>
<result>9/10 = around 0.9</result>


1公顷里有多少个100平方米．

How many 100 square meters are there in 1 hectare?

<gadget id="calculator">10_000 / 100</gadget>
<output>100</output>
<gadget id="calculator">1 * 100</gadget>
<output>100</output>
<result>100</result>


一个数与自己本身相乘，相除，所得的积和商再相乘结果为100，这个数是多少．

When a number is multiplied and divided by itself, the product and the quotient are multiplied together and the result is 100. What is the number?


全国人民代表大会修改后的个人所得税法规定自2007年8月15日起，利息税由20%调减到5%，王阿姨计划的一笔存款的税前利息是3000元，利息税下凋后，可少上交利息税多少元？

The Personal Income Tax Law amended by the National People's Congress stipulates that since August 15, 2007, the interest tax will be reduced from 20% to 5%. Finally, how much less interest tax can be paid?

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>
<gadget id="calculator">(1/5) - (1/20)</gadget>
<output>3/20 = around 0.15</output>
<gadget id="calculator">3_000 * (3/20)</gadget>
<output>450</output>
<result>450</result>


靠一面50米长的墙，围一个宽20米的长方形，要用多长的篱笆？

A 50-meter-long wall surrounds a 20-meter-wide rectangle. How long is the fence?

<gadget id="calculator">50 + 20</gadget>
<output>70</output>
<gadget id="calculator">70 * 2</gadget>
<output>140</output>
<gadget id="calculator">140 - 50</gadget>
<output>90</output>
<result>90</result>


已知两个因数的积是5.6，其中一个因数是0.8，则另一个因数是多少．

Given that the product of two factors is 5.6, and one of them is 0.8, what is the other factor?

<gadget id="calculator">5.6 / 0.8</gadget>
<output>7</output>
<result>7</result>


用两个长是4分米的、宽是3分米的长方形拼成一个新的长方形，拼成后的长方形的周长最大是多少

Use two rectangles with a length of 4 decimeters and a width of 3 decimeters to form a new rectangle. What is the maximum perimeter of the assembled rectangle?

<gadget id="calculator">4 + 4</gadget>
<output>8</output>
<gadget id="calculator">8 + 3</gadget>
<output>11</output>
<gadget id="calculator">11 * 2</gadget>
<output>22</output>
<result>22</result>


If A=-x**2+4x-1, B=-x**2-4x+1, then how much x is BA equal to

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


一本书，小红计划三天看完，第一天看了全书的40%，第二天看了余下的50%，已知第二天比第一天少看了30页，这本书共有多少页？

Xiaohong plans to read a book in three days. She read 40% of the book on the first day and the remaining 50% on the second day. It is known that she read 30 pages less on the second day than on the first day. This book How many pages are there?

<gadget id="calculator">40 / 100</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">50 / 100</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">(3/5) * (1/2)</gadget>
<output>3/10 = around 0.3</output>
<gadget id="calculator">(2/5) - (3/10)</gadget>
<output>1/10 = around 0.1</output>
<gadget id="calculator">30 / (1/10)</gadget>
<output>300</output>
<result>300</result>


20除242与158的和，商是多少？

What is the quotient of 20 divided by the sum of 242 and 158?

<gadget id="calculator">242 + 158</gadget>
<output>400</output>
<gadget id="calculator">400 / 20</gadget>
<output>20</output>
<result>20</result>


如果买3千克苹果10元，8千克香蕉20元．妈妈要买9千克苹果和4千克香蕉，一共需要多少元？

If you buy 3 kg of apples for 10 yuan, 8 kg of bananas for 20 yuan. Mom wants to buy 9 kilograms of apples and 4 kilograms of bananas. How much is the total cost?

<gadget id="calculator">10 * 3</gadget>
<output>30</output>
<gadget id="calculator">20 / 2</gadget>
<output>10</output>
<gadget id="calculator">30 + 10</gadget>
<output>40</output>
<result>40</result>


甲、乙两人在环行跑道上赛跑，跑道全长400米．如果甲的速度为16米/秒，乙的速度为12米/秒．两人同时同地同向而行，那么多少秒后第一次相遇？

Two people, A and B, race on a circular track with a total length of 400 meters. If A's speed is 16 m/s, B's speed is 12 m/s. Two people are walking in the same direction at the same time at the same time, how many seconds later will they meet for the first time?

<gadget id="calculator">16 - 12</gadget>
<output>4</output>
<gadget id="calculator">400 / 4</gadget>
<output>100</output>
<result>100</result>


两支长度相同的蜡烛，第一支能点4小时，第二支能点3小时，同时点燃这两支蜡烛，多少小时后，第一支的长度是第二支的2倍．

Two candles of the same length, the first one can be lit for 4 hours, the second one can be lit for 3 hours, and the two candles are lit at the same time, after how many hours, the length of the first candle is twice that of the second candle.

<gadget id="calculator">2 - 1</gadget>
<output>1</output>
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">(1/3) * 2</gadget>
<output>2/3 = around 0.666667</output>
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">(2/3) - (1/4)</gadget>
<output>5/12 = around 0.416667</output>
<gadget id="calculator">1 / (5/12)</gadget>
<output>12/5 = around 2.4</output>
<result>12/5 = around 2.4</result>


一个长方体水池，长2米，宽1.2米，深8分米，现将水池的四壁和底部抹上一层水泥，求抹水泥的部分的面积是多少平方米？

A cuboid pool is 2 meters long, 1.2 meters wide, and 8 decimeters deep. Now put a layer of cement on the four walls and bottom of the pool. What is the area of the cemented part in square meters?

<gadget id="calculator">8 / 10</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">2 * (4/5)</gadget>
<output>8/5 = around 1.6</output>
<gadget id="calculator">1.2 * (4/5)</gadget>
<output>0.96</output>
<gadget id="calculator">(8/5) + 0.96</gadget>
<output>2.56</output>
<gadget id="calculator">2.56 * 2</gadget>
<output>5.12</output>
<gadget id="calculator">2 * 1.2</gadget>
<output>2.4</output>
<gadget id="calculator">5.12 + 2.4</gadget>
<output>7.52</output>
<result>7.52</result>


正方体的表面积是(4/25)平方厘米，正方体的底面积是多少平方厘米？

The surface area of the cube is (4/25) square centimeters, what is the base area of the cube?

<gadget id="calculator">4 / 25</gadget>
<output>4/25 = around 0.16</output>
<gadget id="calculator">(4/25) / 6</gadget>
<output>2/75 = around 0.026667</output>
<result>2/75 = around 0.026667</result>


在一张长30cm，宽20cm的长方形纸上剪一个最大的圆，这个圆的面积是多少．

Cut out the largest circle on a piece of rectangular paper with a length of 30 cm and a width of 20 cm. What is the area of the circle?

<gadget id="calculator">20 / 2</gadget>
<output>10</output>
<gadget id="calculator">10 ** 2</gadget>
<output>100</output>
<gadget id="calculator">3.14 * 100</gadget>
<output>314</output>
<result>314</result>


一家汽车销售公司今年2月份销售小轿车和小货车数量的比是5：2，这两种车共销售了1400辆．小轿车销售了多少辆？

A car sales company sold a ratio of 5:2 of the number of cars and small trucks in February this year, and a total of 1,400 of these two cars were sold. How many cars were sold?

<gadget id="calculator">5 + 2</gadget>
<output>7</output>
<gadget id="calculator">1_400 / 7</gadget>
<output>200</output>
<gadget id="calculator">200 * 5</gadget>
<output>1_000</output>
<result>1_000</result>


8筐重量相等的苹果，如果从每筐中取走25千克，剩下苹果的重量等于原来3筐苹果的重量，求每筐苹果重多少千克．

baskets of apples with the same weight, if 25 kg are removed from each basket, the weight of the remaining apples is equal to the weight of the original 3 baskets of apples, what is the weight of each basket of apples in kilograms?

<gadget id="calculator">8 - 3</gadget>
<output>5</output>
<gadget id="calculator">8 / 5</gadget>
<output>8/5 = around 1.6</output>
<gadget id="calculator">25 * (8/5)</gadget>
<output>40</output>
<result>40</result>


某粮食加工厂要把400袋大米，运往仓库．3次运了120袋一共需要运多少次．

A grain processing factory wants to transport 400 bags of rice to the warehouse. How many times does it take to transport 120 bags three times?

<gadget id="calculator">120 / 3</gadget>
<output>40</output>
<gadget id="calculator">400 / 40</gadget>
<output>10</output>
<result>10</result>


3件上衣，两条裤子，要配成一套衣服，共有多少种不同的搭配方法．

How many different matching methods are there for 3 coats and 2 pairs of trousers to make a suit?

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


一件事甲单独10天完成，乙单独6天能完成，先甲单独工作2天，剩下的甲乙合作完成，需要多少天能完成？

One thing can be done in 10 days by A alone, 6 days by B alone, A works alone for 2 days, and the rest can be done by cooperation of A and B, how many days will it take?

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>
<gadget id="calculator">(1/10) * 2</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">(1/10) + (1/6)</gadget>
<output>4/15 = around 0.266667</output>
<gadget id="calculator">(4/5) / (4/15)</gadget>
<output>3</output>
<result>3</result>


甲乙两杯溶液，甲杯的浓度是70%，乙杯的浓度是60%，把甲乙两杯混合后，浓度为64%，如果混合前向甲杯加若干升水后，则会得到浓度为68%的甲杯溶液28升，问乙杯原来有多少升溶液？

Two cups of solution A and B, the concentration of cup A is 70%, and the concentration of cup B is 60%. After mixing the two cups of A and B, the concentration is 64%. If several liters of water are added to cup A before mixing, the concentration will be 68 % of the solution in cup A is 28 liters, how many liters of solution is there in cup B?


载重3吨，每台机器重350千克，装8台机器会超载吗？

The load is 3 tons, and each machine weighs 350 kg. Will loading 8 machines be overloaded?


电视机厂今年计划比去年增产(2/5)，去年生产电视机120万台，今年计划生产多少万台？(用方程解答)

The TV factory plans to increase production (2/5) this year compared to last year. Last year, it produced 1.2 million TV sets. How many million TV sets does it plan to produce this year? (solution with equation)

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">120 * (2/5)</gadget>
<output>48</output>
<gadget id="calculator">48 + 120</gadget>
<output>168</output>
<result>168</result>


一个长方形的周长是20厘米，它的长是6厘米，宽是多少．

The perimeter of a rectangle is 20 cm, its length is 6 cm, what is its width?

<gadget id="calculator">20 / 2</gadget>
<output>10</output>
<gadget id="calculator">10 - 6</gadget>
<output>4</output>
<result>4</result>


小明的语文和数学平均成绩为96分，语文84分，数学为多少分．

Xiaoming's Chinese and mathematics average scores are 96 points, Chinese 84 points, and mathematics scores.

<gadget id="calculator">96 * 2</gadget>
<output>192</output>
<gadget id="calculator">192 - 84</gadget>
<output>108</output>
<result>108</result>


一个圆柱体高是8厘米，把它的长度锯掉2厘米以后，侧面积减少了25.12平方厘米．这个圆柱原来的体积是多少？

The height of a cylinder is 8 cm. After sawing off its length by 2 cm, the lateral area is reduced by 25.12 cm2. What was the original volume of the cylinder?

<gadget id="calculator">1 ** 2</gadget>
<output>1</output>
<gadget id="calculator">3.14 * 1 * 8</gadget>
<output>25.12</output>
<result>25.12</result>


张师傅加工一批零件，经检测合格的有98个，不合格的2个，这批零件合格率是多少．

Master Zhang processed a batch of parts, 98 passed the inspection and 2 failed. What is the pass rate of this batch of parts?

<gadget id="calculator">98 + 2</gadget>
<output>100</output>
<gadget id="calculator">98 / 100</gadget>
<output>49/50 = around 0.98</output>
<gadget id="calculator">100 / 100</gadget>
<output>1</output>
<gadget id="calculator">(49/50) * 1</gadget>
<output>49/50 = around 0.98</output>
<result>49/50 = around 0.98</result>


小芳家到学校的路程是2400米，一天早上，她骑车去学校，以每分250米的速度骑了6分钟，这时发现必须用3分钟赶到学校，否则会迟到，剩下的路程平均每分钟要行多少米？

The distance from Xiaofang’s home to school is 2,400 meters. One morning, she rode to school at a speed of 250 meters per minute for 6 minutes. How many meters per minute is the average distance traveled?

<gadget id="calculator">250 * 6</gadget>
<output>1_500</output>
<gadget id="calculator">2_400 - 1_500</gadget>
<output>900</output>
<gadget id="calculator">900 / 3</gadget>
<output>300</output>
<result>300</result>


一个圆锥形沙堆，底面周长是18.84米，高是1.8米，如果每立方米沙重1.5吨，这堆沙重多少吨？

A conical pile of sand has a circumference of 18.84 meters and a height of 1.8 meters. If each cubic meter of sand weighs 1.5 tons, how many tons does the pile of sand weigh?

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">18.84 / 3.14 / 2</gadget>
<output>3</output>
<gadget id="calculator">3 ** 2</gadget>
<output>9</output>
<gadget id="calculator">(1/3) * 3.14 * 9 * 1.8</gadget>
<output>16.956</output>
<gadget id="calculator">16.956 * 1.5</gadget>
<output>25.434</output>
<result>25.434</result>


刘阿姨买奶粉和米粉各2盒，共付89.2元，奶粉每盒28.4元，米粉每盒多少元？(用方程解)

Aunt Liu bought 2 boxes of milk powder and rice noodles, and paid 89.2 yuan in total. Milk powder was 28.4 yuan per box. How much is each box of rice noodles? (solution by equation)

<gadget id="calculator">2 * 28.4</gadget>
<output>56.8</output>
<gadget id="calculator">89.2 - 56.8</gadget>
<output>32.4</output>
<gadget id="calculator">32.4 / 2</gadget>
<output>16.2</output>
<result>16.2</result>


一件衣服打八折后比现价便宜了70元，这件衣服原价是多少元．

After a 20% discount, a piece of clothing is 70 yuan cheaper than the current price. What is the original price of this piece of clothing?

<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">1 - (4/5)</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">70 / (1/5)</gadget>
<output>350</output>
<result>350</result>


超市运来一批巧克力和饼干，饼干比巧克力多20千克，每箱巧克力25千克，每箱饼干20千克，运来了11箱饼干，运来了多少箱巧克力？

batch of chocolates and biscuits are shipped from the supermarket. The biscuits are 20 kg more than the chocolates. Each box of chocolates is 25 kg, and each box of biscuits is 20 kg. 11 boxes of biscuits are shipped. How many boxes of chocolates are shipped?

<gadget id="calculator">20 * 11</gadget>
<output>220</output>
<gadget id="calculator">220 - 20</gadget>
<output>200</output>
<gadget id="calculator">200 / 25</gadget>
<output>8</output>
<result>8</result>


一个平行四边形的周长是30厘米，相邻两条边上的高分别是2厘米和3厘米，它的面积是多少平方厘米．

If the perimeter of a parallelogram is 30 centimeters and the heights of two adjacent sides are 2 centimeters and 3 centimeters respectively, what is its area in square centimetres?

<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>
<gadget id="calculator">(3/2) * 6</gadget>
<output>9</output>
<gadget id="calculator">9 * 2</gadget>
<output>18</output>
<result>18</result>


用2，3，5，6这四个数组成一个分数，其中最简分数共有多少个．

Use the four numbers 2, 3, 5, and 6 to form a fraction, how many of them are the simplest fractions?


在支援灾区捐款活动中，六1班45人，平均每人捐款2.4元，六2班50人，共捐款158元，两个班平均每人捐款多少元？

In the donation activity to support the disaster area, there were 45 people in Class 1, with an average donation of 2.4 yuan per person, and 50 people in Class 2, with a total donation of 158 yuan. How much is the average donation per person in the two classes?

<gadget id="calculator">2.4 * 45</gadget>
<output>108</output>
<gadget id="calculator">108 + 158</gadget>
<output>266</output>
<gadget id="calculator">45 + 50</gadget>
<output>95</output>
<gadget id="calculator">266 / 95</gadget>
<output>14/5 = around 2.8</output>
<result>14/5 = around 2.8</result>


将62%化成最简分数多少．

<gadget id="calculator">62 / 100</gadget>
<output>31/50 = around 0.62</output>
<result>31/50 = around 0.62</result>


在一个长20m，宽8m，深1.6m的长方体蓄水池的底面和四周贴瓷砖，瓷砖是边长为2dm的正方形，贴完共需瓷砖多少块？

Lay tiles on the bottom and surroundings of a cuboid reservoir with a length of 20m, a width of 8m, and a depth of 1.6m. The tiles are squares with a side length of 2dm. How many tiles are needed in total?

<gadget id="calculator">20 * 8</gadget>
<output>160</output>
<gadget id="calculator">20 * 1.6 * 2</gadget>
<output>64</output>
<gadget id="calculator">8 * 1.6 * 2</gadget>
<output>25.6</output>
<gadget id="calculator">160 + 64 + 25.6</gadget>
<output>249.6</output>
<gadget id="calculator">2 / 10</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">(1/5) * (1/5)</gadget>
<output>1/25 = around 0.04</output>
<gadget id="calculator">249.6 / (1/25)</gadget>
<output>6_240</output>
<result>6_240</result>


培训中心要建设三个网络教室，每个教室配备48张电脑桌，每张电脑桌的价格是250元．购买这些电脑桌一共要花多少元？

The training center will build three network classrooms, each equipped with 48 computer desks, and the price of each computer desk is 250 yuan. How much does it cost to buy these computer desks?

<gadget id="calculator">250 * 48 * 3</gadget>
<output>36_000</output>
<result>36_000</result>


有甲、乙两列火车9时50分同时从A，B两地相对开出，13时20分途中相遇，已知甲车每小时行120千米，与乙车速度比是2：3，求AB两地之间路程是多少？

There are two trains A and B departing oppositely from A and B at 9:50 at the same time, and meet on the way at 13:20. It is known that train A travels 120 kilometers per hour, and the speed ratio of train B to that of train B is 2:3. What is the distance between AB and AB?

<gadget id="calculator">120 / 2</gadget>
<output>60</output>
<gadget id="calculator">60 * 3</gadget>
<output>180</output>
<gadget id="calculator">120 + 180</gadget>
<output>300</output>
<gadget id="calculator">300 * 3.5</gadget>
<output>1_050</output>
<result>1_050</result>


客车从甲地、货车从乙地同时相向开出，开出5小时后，客车距乙地还有全程的(1/6)，货车距甲地还有142千米．客车每小时比货车多行12千米，甲、乙两地相距多少千米？

The bus departs from A and the truck departs from B at the same time. After 5 hours, the bus is still 1/6 of the distance from B, and the truck is 142 kilometers away from A. The passenger car travels 12 kilometers more per hour than the truck. How many kilometers are the distance between A and B?

<gadget id="calculator">5 * 12</gadget>
<output>60</output>
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">142 * (1/6)</gadget>
<output>71/3 = around 23.666667</output>
<gadget id="calculator">142 - 60 - (71/3)</gadget>
<output>175/3 = around 58.333333</output>
<gadget id="calculator">5 * (1/6)</gadget>
<output>5/6 = around 0.833333</output>
<gadget id="calculator">(5/6) - 5</gadget>
<output>-25/6 = around -4.166667</output>
<gadget id="calculator">5 + (-25/6)</gadget>
<output>5/6 = around 0.833333</output>
<gadget id="calculator">(175/3) / (5/6)</gadget>
<output>70</output>
<gadget id="calculator">70 * 5</gadget>
<output>350</output>
<gadget id="calculator">350 + 142</gadget>
<output>492</output>
<result>492</result>


2013的教师节是星期二，请你根据这个条件计算出2013的国庆节是星期几？

Teacher's Day in 2013 is on Tuesday, please calculate the National Day in 2013 based on this condition?


一块三角形的油菜地，底是250米，高是128米，共收油菜籽3520千克．平均每公顷收油菜籽多少千克？

A triangular rapeseed field has a base of 250 meters and a height of 128 meters, and a total of 3520 kg of rapeseed is harvested. How many kilograms of rapeseed are harvested on average per hectare?

<gadget id="calculator">128 / 2 / 10_000</gadget>
<output>4/625 = around 0.0064</output>
<gadget id="calculator">250 * (4/625)</gadget>
<output>8/5 = around 1.6</output>
<gadget id="calculator">3_520 / (8/5)</gadget>
<output>2_200</output>
<result>2_200</result>


一个长方体，长6厘米，宽4厘米，高2厘米，它的棱长和是多少

A cuboid is 6 cm long, 4 cm wide, and 2 cm high, what is the sum of its sides

<gadget id="calculator">6 + 4 + 2</gadget>
<output>12</output>
<gadget id="calculator">12 * 4</gadget>
<output>48</output>
<result>48</result>


商店运来一批水果，第一天卖出总数的(3/7)，第二天卖出总数的(1/7)．两天一共卖出总数的几分之几？

The store shipped a batch of fruits, sold (3/7) of the total on the first day, and (1/7) of the total on the second day. What percentage of the total sales in two days?

<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>
<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>
<gadget id="calculator">(3/7) + (1/7)</gadget>
<output>4/7 = around 0.571429</output>
<result>4/7 = around 0.571429</result>


一件商品先降价20%后，再涨价20%，这时的价格为48元，这件商品的原价是多少元．

The price of a product is reduced by 20% first, and then the price is increased by 20%. At this time, the price is 48 yuan. What is the original price of this product?

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>
<gadget id="calculator">48 / (6/5)</gadget>
<output>40</output>
<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">40 / (4/5)</gadget>
<output>50</output>
<result>50</result>


用24米长的彩绸做彩旗，平均每面彩旗用(1/6)米彩绸，这些彩旗的(3/4)用来装饰展厅大门两侧．装饰展厅大门两侧的彩旗有多少面？

Use 24-meter-long colored silk to make colored flags, and each colored flag uses (1/6) rice colored silk on average, and (3/4) of these colored flags are used to decorate both sides of the gate of the exhibition hall. How many flags are there on both sides of the gate of the exhibition hall?

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">24 / (1/6)</gadget>
<output>144</output>
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">144 * (3/4)</gadget>
<output>108</output>
<result>108</result>


□50/5商是两位数，□可以填多少

□The quotient of 50/5 is a two-digit number, □How much can be filled


两个小组比赛扎花．第一组扎了35朵，第二小组扎的是第一小组的3倍还多出8朵，第二小组扎了多少朵花？

The two teams competed to tie flowers. The first group tied 35 flowers, and the second group tied 3 times as many flowers as the first group and had 8 more flowers. How many flowers did the second group tie?

<gadget id="calculator">35 * 3</gadget>
<output>105</output>
<gadget id="calculator">105 + 8</gadget>
<output>113</output>
<result>113</result>


从甲地到乙地小亮骑自行车用了24分钟，乘汽车只用了6分钟．自行车每分钟行驶260米，汽车每分钟行驶多少米？

It took Xiaoliang 24 minutes to ride a bicycle from A to B, but only 6 minutes by car. A bicycle travels 260 meters per minute, how many meters per minute does a car travel?

<gadget id="calculator">24 / 6</gadget>
<output>4</output>
<gadget id="calculator">260 * 4</gadget>
<output>1_040</output>
<result>1_040</result>


一本书有826页，小明第一天看了158页，第二天看了239页．还剩多少页没有看？

A book has 826 pages. Xiao Ming reads 158 pages on the first day and 239 pages on the second day. How many pages are left unread?

<gadget id="calculator">826 - 158 - 239</gadget>
<output>429</output>
<result>429</result>


一块梯形土地的上底是60米，比下底短80米，高150米，这块土地的面积是多少平方米？

The upper base of a trapezoidal land is 60 meters, 80 meters shorter than the lower base, and 150 meters high. What is the area of this land in square meters?

<gadget id="calculator">60 + 80 + 60</gadget>
<output>200</output>
<gadget id="calculator">150 / 2</gadget>
<output>75</output>
<gadget id="calculator">200 * 75</gadget>
<output>15_000</output>
<result>15_000</result>


王大伯买了10000元的国库券，定期3年，年利率为3.26%，到期可获得利息多少元．

Uncle Wang bought treasury bills worth 10,000 yuan, fixed for 3 years, with an annual interest rate of 3.26%, how much interest can he get at maturity.

<gadget id="calculator">3.26 / 100</gadget>
<output>0.0326</output>
<gadget id="calculator">10_000 * 0.0326 * 3</gadget>
<output>978</output>
<result>978</result>


工人叔叔把36米长的圆木锯成了3米长的小段，每锯完一次需要4分钟，李叔叔锯完这根圆木一共用了多长时间？

The worker uncle sawed a 36-meter-long log into 3-meter-long pieces, and it took 4 minutes to complete each saw. How long did it take Uncle Li to saw this log?

<gadget id="calculator">36 / 3</gadget>
<output>12</output>
<gadget id="calculator">12 - 1</gadget>
<output>11</output>
<gadget id="calculator">4 * 11</gadget>
<output>44</output>
<result>44</result>


一批化肥，第一次运走了30吨，第二次运走了总数的(1/3)，剩下的化肥与运走的化肥的质量比是4：5，这批化肥一共有多少吨？

For a batch of chemical fertilizers, 30 tons were transported for the first time, and 1/3 of the total amount was transported for the second time. The mass ratio of the remaining chemical fertilizers to the transported chemical fertilizers is 4:5. How much is this batch of chemical fertilizers in total? Ton?

<gadget id="calculator">4 + 5</gadget>
<output>9</output>
<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>
<gadget id="calculator">(5/9) - (1/3)</gadget>
<output>2/9 = around 0.222222</output>
<gadget id="calculator">30 / (2/9)</gadget>
<output>135</output>
<result>135</result>


世界第一长河尼罗河全长6670千米，长江比尼罗河的(9/10)还长297千米，长江全长多少千米？(列方程解)

The longest river in the world, the Nile, is 6,670 kilometers long. The Yangtze River is 297 kilometers longer than the Nile (9/10). How long is the Yangtze River in kilometers? (Solution of column equation)

<gadget id="calculator">6_670 - 297</gadget>
<output>6_373</output>
<gadget id="calculator">9 / 10</gadget>
<output>9/10 = around 0.9</output>
<gadget id="calculator">6_373 / (9/10)</gadget>
<output>63_730/9 = around 7_081.111111</output>
<result>63_730/9 = around 7_081.111111</result>


六一班栽了40棵树苗，4棵没有成活，成活率是多少．

Class No. 1 planted 40 saplings, but 4 did not survive. What is the survival rate?

<gadget id="calculator">40 - 4</gadget>
<output>36</output>
<gadget id="calculator">36 / 40</gadget>
<output>9/10 = around 0.9</output>
<gadget id="calculator">100 / 100</gadget>
<output>1</output>
<gadget id="calculator">(9/10) * 1</gadget>
<output>9/10 = around 0.9</output>
<result>9/10 = around 0.9</result>


林洪存款840元，他存款的60%正好等于黄东存款的40%，黄东存款多少元？

Lin Hong has a deposit of 840 yuan, and 60% of his deposit is exactly equal to 40% of Huang Dong's deposit. How much is Huang Dong's deposit?

<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">(3/5) / (2/5)</gadget>
<output>3/2 = around 1.5</output>
<gadget id="calculator">840 * (3/2)</gadget>
<output>1_260</output>
<result>1_260</result>


星期天妈妈要做的家务事是：烧开水沏茶10分钟，拖地20分钟，用洗衣机洗衣服30分钟，晾衣服5分钟．妈妈合理安排做事的最快时间是多少分钟．

The housework that mother has to do on Sunday is: boil water to make tea for 10 minutes, mop the floor for 20 minutes, wash clothes in washing machine for 30 minutes, and dry clothes for 5 minutes. What is the fastest time for mother to arrange things reasonably?

<gadget id="calculator">30 + 5</gadget>
<output>35</output>
<result>35</result>


两个因数(0除外)，一个因数扩大了5倍，另一个因数扩大了4倍，那么积将扩大多少倍．

Two factors (except 0), one factor is enlarged by 5 times, and the other factor is enlarged by 4 times, then how many times will the product be enlarged.

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


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


把0.85、85.1%、0.8{_{5}**(•)}、0.805四个数按从小到大的顺序排列，排在第二位的是多少

Arrange the four numbers 0.85, 85.1%, 0.8{_{5}**(•)}, and 0.805 in ascending order, what is the second number


有一盒糖，如果按4块一堆分开，结果多出一块；如果按5块一堆分开，结果也多出一块．那么这盒糖最少有多少块？

There is a box of candy, if divided into piles of 4, the result is an extra piece; if divided into piles of 5, the result is also an extra piece. So how many candies are there at least in this box?

<gadget id="calculator">4 * 5</gadget>
<output>20</output>
<gadget id="calculator">20 + 1</gadget>
<output>21</output>
<result>21</result>


小明看一本故事书，第一天看了总页数的(3/7)，如果再看12页，正好看了这本书的一半，这本书有多少页？

Xiao Ming reads a story book, and reads (3/7) of the total pages on the first day. If he reads 12 more pages, he reads exactly half of the book. How many pages does this book have?

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>
<gadget id="calculator">(1/2) - (3/7)</gadget>
<output>1/14 = around 0.071429</output>
<gadget id="calculator">12 / (1/14)</gadget>
<output>168</output>
<result>168</result>


某品牌数码相机售价2400元，先降价10%，后来在此基础上又降价10%，此时买这个品牌的数码相机，与原价比降价百分之几？

The price of a digital camera of a certain brand is 2,400 yuan, the price is first reduced by 10%, and then the price is reduced by 10% on this basis. At this time, when buying a digital camera of this brand, what percentage is the price reduction compared to the original price?

<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>
<gadget id="calculator">1 - (1/10)</gadget>
<output>9/10 = around 0.9</output>
<gadget id="calculator">(9/10) * (9/10)</gadget>
<output>81/100 = around 0.81</output>
<result>81/100 = around 0.81</result>


工程队修一条水渠，第一天修了80米，正好是全长的(2/5)．这条水渠全长多少米．

The construction team repaired a canal, and built 80 meters on the first day, which happened to be the full length (2/5). How long is this canal in meters?

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">80 / (2/5)</gadget>
<output>200</output>
<result>200</result>


长跑锻炼，小白跑了2千米，是小涛跑的(4/5)，小亮跑的(5/6)等于小涛跑的．小亮跑了多少千米？

Long-distance running exercise, Xiaobai ran 2 kilometers, it was Xiaotao's (4/5), Xiaoliang's (5/6) was equal to Xiaotao's. How many kilometers did Xiaoliang run?

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>
<gadget id="calculator">2 / (4/5) / (5/6)</gadget>
<output>3</output>
<result>3</result>


被减数是850，减数是354，差是多少？

The minuend is 850, and the subtrahend is 354. What is the difference?

<gadget id="calculator">850 - 354</gadget>
<output>496</output>
<result>496</result>


一个修路队，已修好1.87km，剩下的比修好的少0.28km，这段路共有多少千米？

A road repair team has repaired 1.87km, and the rest is 0.28km shorter than the repaired one. How many kilometers are there in total?

<gadget id="calculator">1.87 - 0.28</gadget>
<output>1.59</output>
<gadget id="calculator">1.59 + 1.87</gadget>
<output>3.46</output>
<result>3.46</result>


<gadget id="calculator">2.76 - 0.69</gadget>
<output>2.07</output>
<result>2.07</result>


3个棱长都是30cm的正方体堆放在墙角处，露在外面的面积是多少？

Three cubes with edge lengths of 30cm are stacked at the corner of the wall, what is the exposed area?

<gadget id="calculator">30 * 30 * 7</gadget>
<output>6_300</output>
<result>6_300</result>


学校张老师到商店买8个篮球和8个排球，篮球的单价是73元，排球的单价是65元，张老师买篮球比买排球多用多少元？

Teacher Zhang from the school goes to the store to buy 8 basketballs and 8 volleyballs. The unit price of basketballs is 73 yuan, and the unit price of volleyballs is 65 yuan. How much more does Mr. Zhang pay for basketballs than for volleyballs?

<gadget id="calculator">73 - 65</gadget>
<output>8</output>
<gadget id="calculator">8 * 8</gadget>
<output>64</output>
<result>64</result>


两个数的比值是(2/3)，比的前项和比的后项同时扩大3倍，那么比值是多少．

The ratio of two numbers is (2/3), and the former term of the ratio and the latter term are enlarged by 3 times at the same time, so what is the ratio.

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


红花的枝数比黄花的枝数多(3/4)，则红花是黄花的多少．

If the number of branches of safflower is more than that of yellow flowers (3/4), then the number of safflowers is more than that of yellow flowers.

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">1 + (3/4)</gadget>
<output>7/4 = around 1.75</output>
<gadget id="calculator">(7/4) / 1</gadget>
<output>7/4 = around 1.75</output>
<result>7/4 = around 1.75</result>


运送一批抢险物资，如果按3：4：5分给甲、乙、丙三个车队，甲车队正好分得105吨，这批物资共有多少吨？

Transporting a batch of emergency supplies, if they are distributed to three convoys A, B, and C according to the ratio of 3:4:5, and convoy A gets exactly 105 tons, how many tons are there in total for this batch of supplies?

<gadget id="calculator">105 / 3</gadget>
<output>35</output>
<gadget id="calculator">35 * 4</gadget>
<output>140</output>
<gadget id="calculator">35 * 5</gadget>
<output>175</output>
<gadget id="calculator">105 + 140 + 175</gadget>
<output>420</output>
<result>420</result>


去年小亚11岁，今年爸爸的年龄比她的3倍多3岁，爷爷的年龄正好是爸爸的2倍．爷爷今年几岁？

Last year, Xiaoya was 11 years old. This year, her father is three times older than her by 3 years, and her grandfather is twice as old as her father. How old is grandpa?

<gadget id="calculator">11 + 1</gadget>
<output>12</output>
<gadget id="calculator">12 * 3</gadget>
<output>36</output>
<gadget id="calculator">36 + 3</gadget>
<output>39</output>
<gadget id="calculator">39 * 2</gadget>
<output>78</output>
<result>78</result>


李老师从郑州乘飞机到北京，飞机票价是690元．他带了30千克的行李，应付托运费多少元？(乘飞机的每位成人旅客，可以免费携带20千克行李．如果超过20千克，超过的部分没千克需按飞机票原价的1.5%付行李托运费．)

Mr. Li took a plane from Zhengzhou to Beijing, and the plane fare was 690 yuan. He has 30 kilograms of luggage, how much is the checked fee? (Each adult passenger on the plane can carry 20 kilograms of luggage for free. If it exceeds 20 kilograms, the extra kilogram will be charged at 1.5% of the original price of the air ticket.)

<gadget id="calculator">1.5 / 100</gadget>
<output>0.015</output>
<gadget id="calculator">30 - 20</gadget>
<output>10</output>
<gadget id="calculator">690 * 0.015 * 10</gadget>
<output>103.5</output>
<result>103.5</result>


2.65与1.85的差除它们的和，商是多少？

What is the quotient of the difference between 2.65 and 1.85 divided by their sum?

<gadget id="calculator">2.65 + 1.85</gadget>
<output>4.5</output>
<gadget id="calculator">2.65 - 1.85</gadget>
<output>0.8</output>
<gadget id="calculator">4.5 / 0.8</gadget>
<output>5.625</output>
<result>5.625</result>


小牛和小狗比赛跳绳，小牛一次跳24下，小狗跳的是小牛的3倍，问小牛一次比小狗少跳多少下？

The calf and the puppy have a rope skipping competition. The calf jumps 24 times at a time, but the puppy jumps three times as fast as the calf. How many times does the calf skip less than the puppy?

<gadget id="calculator">24 * 3</gadget>
<output>72</output>
<gadget id="calculator">72 - 24</gadget>
<output>48</output>
<result>48</result>


小何、小顾、小苏三人同时到小吃店吃早饭．小何吃面条要等5分钟．小顾吃水饺要等4分钟，小苏吃鸡蛋要等3分钟．现在只有一位厨师．怎样安排，使得三人等待的时间总和最少？最少是多长时间？

Xiao He, Xiao Gu, and Xiao Su went to the snack bar to have breakfast at the same time. Xiao He has to wait 5 minutes to eat noodles. Xiao Gu has to wait 4 minutes to eat dumplings, and Xiao Su has to wait 3 minutes to eat eggs. Now there is only one cook. How to arrange so that the sum of the waiting time of the three people is the least? How long is the minimum?

<gadget id="calculator">3 * 3</gadget>
<output>9</output>
<gadget id="calculator">4 * 2</gadget>
<output>8</output>
<gadget id="calculator">5 * 1</gadget>
<output>5</output>
<gadget id="calculator">9 + 8 + 5</gadget>
<output>22</output>
<result>22</result>


猴妈妈摘到一筐桃子，不论分给5只小猴、6只小猴还是8只小猴，都会剩余一只，请问这筐桃子最少有几只？

If the mother monkey picks a basket of peaches, no matter if she distributes them to 5, 6 or 8 little monkeys, there will always be one left. How many peaches are there at least in this basket?

<gadget id="calculator">5 * 2 * 3 * 2 * 2</gadget>
<output>120</output>
<gadget id="calculator">120 + 1</gadget>
<output>121</output>
<result>121</result>


(9/31)的分子分母都加上同一个数，约分后得到(5/7)．要加上的这个数是多少．

Add the same number to the numerator and denominator of (9/31) to obtain (5/7). What is the number to be added.


敦煌莫高窟藏经洞出土文献5万余件．这些珍贵的文献约有70%流失海外．国内现存莫高窟出土文献约有多少件？

More than 50,000 documents were unearthed from the Sutra Cave of Mogao Grottoes in Dunhuang. About 70% of these precious documents were lost overseas. How many documents are there in the existing Mogao Grottoes unearthed in China?

<gadget id="calculator">5 * 10_000</gadget>
<output>50_000</output>
<gadget id="calculator">70 / 100</gadget>
<output>7/10 = around 0.7</output>
<gadget id="calculator">1 - (7/10)</gadget>
<output>3/10 = around 0.3</output>
<gadget id="calculator">50_000 * (3/10)</gadget>
<output>15_000</output>
<result>15_000</result>


在一幅比例尺是1：8000000的地图上，量得东莞与武汉的图上距离是15cm．两地的实际距离是多少千米？

On a map with a scale of 1:8,000,000, the distance between Dongguan and Wuhan is 15cm. What is the actual distance in kilometers between the two places?

<gadget id="calculator">1 / 8_000_000</gadget>
<output>1/8_000_000 = around 0</output>
<gadget id="calculator">15 / (1/8_000_000) / 100_000</gadget>
<output>1_200</output>
<result>1_200</result>


一些同学参加三项比赛，冠军得5分，亚军得3分，季军得1分，没有并列的．那么，一个同学至少要得多少分就比其他同学得分高？

Some students participate in three events, the champion gets 5 points, the runner-up gets 3 points, the third gets 1 point, and there is no tie. So, how many points does a classmate need at least to score higher than other students?

<gadget id="calculator">5 * 2</gadget>
<output>10</output>
<gadget id="calculator">1 * 3</gadget>
<output>3</output>
<gadget id="calculator">10 + 3</gadget>
<output>13</output>
<result>13</result>


一个水稻专业户今年收稻谷96吨，比去年增产了二成，这个水稻专业户去年收稻谷多少吨？

A professional rice household harvested 96 tons of rice this year, an increase of 20% over last year. How many tons of rice did this professional rice household harvest last year?

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>
<gadget id="calculator">96 / (6/5)</gadget>
<output>80</output>
<result>80</result>


<gadget id="calculator">35 * 35</gadget>
<output>1_225</output>
<gadget id="calculator">1 / 35</gadget>
<output>1/35 = around 0.028571</output>
<gadget id="calculator">(1/35) * 35</gadget>
<output>1</output>
<gadget id="calculator">1_225 / 1</gadget>
<output>1_225</output>
<result>1_225</result>


六年级学生参加植树劳动，男生植了160棵，女生植的比男生的75%多5棵．女生植树多少棵？

The sixth grade students participated in the tree planting labor. Boys planted 160 trees, and girls planted 5 more trees than boys (75%). How many trees do girls plant?

<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>
<gadget id="calculator">160 * (3/4)</gadget>
<output>120</output>
<gadget id="calculator">120 + 5</gadget>
<output>125</output>
<result>125</result>


光盘的银色部分是一个圆环，内圆半径是2cm，外圆半径是6cm，它的面积是多少cm**2．

The silver part of the disc is a ring, the radius of the inner circle is 2cm, and the radius of the outer circle is 6cm. What is its area in cm**2.

<gadget id="calculator">6 ** 2</gadget>
<output>36</output>
<gadget id="calculator">2 ** 2</gadget>
<output>4</output>
<gadget id="calculator">36 - 4</gadget>
<output>32</output>
<gadget id="calculator">3.14 * 32</gadget>
<output>100.48</output>
<result>100.48</result>


李阳家去年上半年缴纳水费168元，下半年平均每月缴纳水费24元．下半年比上半年平均每月节省水费多少元？

Li Yang's family paid 168 yuan for water in the first half of last year, and an average of 24 yuan per month in the second half of the year. How much is the average monthly water savings in the second half of the year compared to the first half?

<gadget id="calculator">24 * 6</gadget>
<output>144</output>
<gadget id="calculator">168 - 144</gadget>
<output>24</output>
<result>24</result>


25与20的和除以5，商是多少？列式多少

What is the quotient of the sum of 25 and 20 divided by 5? How many columns

<gadget id="calculator">25 + 20</gadget>
<output>45</output>
<gadget id="calculator">45 / 5</gadget>
<output>9</output>
<result>9</result>


某班50人，男生比女生多6人．该班男生多少人？

In a class of 50 students, there are 6 more boys than girls. How many boys are there in this class?

<gadget id="calculator">50 + 6</gadget>
<output>56</output>
<gadget id="calculator">56 / 2</gadget>
<output>28</output>
<result>28</result>


某商店搞促销活动，买4送1．每包水果糖的价格是30元，如果一次买4盒，每盒便宜多少元？

store is running a promotion, buy 4 get 1 free. The price of each pack of fruit candies is 30 yuan. If you buy 4 boxes at a time, how much is each box cheaper?

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>
<gadget id="calculator">30 * (4/5)</gadget>
<output>24</output>
<gadget id="calculator">30 - 24</gadget>
<output>6</output>
<result>6</result>


现有浓度为20%的盐水80克，加入20克的盐，这时盐水的浓度是多少？

If 80 grams of salt water with a concentration of 20% is added, 20 grams of salt is added. What is the concentration of the salt water at this time?

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>
<gadget id="calculator">80 * (1/5)</gadget>
<output>16</output>
<gadget id="calculator">16 + 20</gadget>
<output>36</output>
<gadget id="calculator">80 + 20</gadget>
<output>100</output>
<gadget id="calculator">36 / 100</gadget>
<output>9/25 = around 0.36</output>
<gadget id="calculator">100 / 100</gadget>
<output>1</output>
<gadget id="calculator">(9/25) * 1</gadget>
<output>9/25 = around 0.36</output>
<result>9/25 = around 0.36</result>


小明家上半年共用水60吨，照这样计算，全年共用水多少吨．

Xiaoming's family shared 60 tons of water in the first half of the year. According to this calculation, how many tons of water are shared throughout the year.

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


甲乙二人都骑自行车从两地同时出发，相向而行．甲每小时行13千米，乙每小时行10千米．两人在距两城中点的3千米处相遇，两地相距多少千米？

Both A and B start from two places at the same time by bicycle and walk toward each other. A travels 13 kilometers per hour and B travels 10 kilometers per hour. The two met at a distance of 3 kilometers from the midpoint of the two cities. How many kilometers are the distance between the two places?

<gadget id="calculator">10 + 13</gadget>
<output>23</output>
<gadget id="calculator">3 * 2</gadget>
<output>6</output>
<gadget id="calculator">13 - 10</gadget>
<output>3</output>
<gadget id="calculator">6 / 3</gadget>
<output>2</output>
<gadget id="calculator">23 * 2</gadget>
<output>46</output>
<result>46</result>


小明家到学校的路程有4千米，他已经走了3千米，还剩下几分之几没走？

The distance from Xiao Ming's house to the school is 4 kilometers. He has already walked 3 kilometers, how much of it is left?

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


等腰三角形的一个底角是20°，那么顶角是多少°

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

<gadget id="calculator">20 * 2</gadget>
<output>40</output>
<gadget id="calculator">180 - 40</gadget>
<output>140</output>
<result>140</result>


一个长方形的面积为1155平方米，宽比长短2米，这个长方形的周长是多少米．

The area of a rectangle is 1155 square meters, and the ratio of width to length is 2 meters. What is the perimeter of the rectangle in meters?

<gadget id="calculator">35 + 33</gadget>
<output>68</output>
<gadget id="calculator">68 * 2</gadget>
<output>136</output>
<result>136</result>


绕学校田径场上的跑道跑一圈，林林用(1/6)分，小陈用(1/7)分，如果两人同时从一点相背跑出，多少分后第一次相遇．

Run around the track on the school's track and field field, Lin Lin uses (1/6) points, Xiao Chen uses (1/7) points, if the two run from opposite sides at the same time, how many points will they meet for the first time.

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>
<gadget id="calculator">1 / (1/6)</gadget>
<output>6</output>
<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">6 + 7</gadget>
<output>13</output>
<gadget id="calculator">1 / 13</gadget>
<output>1/13 = around 0.076923</output>
<result>1/13 = around 0.076923</result>


李伟看一本故事书，第一天看了全书的(1/4)，第二天看了全书的40%，还剩下21页没有看．这本故事书共有多少页？

Li Wei reads a story book. He read the whole book (1/4) on the first day, and 40% of the whole book on the second day, leaving 21 pages unread. How many pages does this storybook have?

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>
<gadget id="calculator">1 - (1/4) - (2/5)</gadget>
<output>7/20 = around 0.35</output>
<gadget id="calculator">21 / (7/20)</gadget>
<output>60</output>
<result>60</result>


在一次运动会中，甲班参加田径的有12人，参加田赛的有15人，即参加田赛有参加田径的有7人，没有参加比赛的有21人，甲班共有几人？

In a sports meeting, there are 12 people from Class A who participated in the track and field competition, 15 people participated in the field competition, that is, 7 people participated in the field competition, and 21 people did not participate in the competition. How many people in Class A are there?

<gadget id="calculator">12 - 7</gadget>
<output>5</output>
<gadget id="calculator">15 + 5</gadget>
<output>20</output>
<gadget id="calculator">20 + 21</gadget>
<output>41</output>
<result>41</result>


一个长方体的棱长总和是48厘米，底面周长是18厘米，高是多少厘米？

The sum of the lengths of the sides of a cuboid is 48 cm, the circumference of the base is 18 cm, what is the height in cm?

<gadget id="calculator">18 * 2</gadget>
<output>36</output>
<gadget id="calculator">48 - 36</gadget>
<output>12</output>
<gadget id="calculator">12 / 4</gadget>
<output>3</output>
<result>3</result>


哥哥和妹妹收集邮票，已知哥哥收集的占总数的(3/7)，若妹妹给哥哥10枚，则两人的邮票数相等，哥哥和妹妹共有邮票多少枚？

The elder brother and the younger sister collect stamps. It is known that the elder brother collects 3/7 of the total. If the younger sister gives the elder brother 10 stamps, then the number of stamps of the two is equal. How many stamps does the elder brother and younger sister share?

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>
<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>
<gadget id="calculator">(1/2) - (3/7)</gadget>
<output>1/14 = around 0.071429</output>
<gadget id="calculator">10 / (1/14)</gadget>
<output>140</output>
<result>140</result>


学校举行一次关于欧洲杯的知识竞赛题，共20题，答对一题得5分，答错一题扣2分，不答得0分，陈飞参加竞赛得了81分，且知道他答错的题数比不答的题多一道，陈飞答对了多少道题？

The school held a knowledge contest about the European Cup, with a total of 20 questions, 5 points for a correct answer, 2 points for a wrong answer, and 0 points for no answer. Chen Fei participated in the competition and scored 81 points, and he knew that he answered wrongly. The number of questions was one more than the unanswered questions. How many questions did Chen Fei answer correctly?

<gadget id="calculator">5 * 21</gadget>
<output>105</output>
<gadget id="calculator">105 - 81</gadget>
<output>24</output>
<gadget id="calculator">5 * 2</gadget>
<output>10</output>
<gadget id="calculator">10 + 2</gadget>
<output>12</output>
<gadget id="calculator">24 / 12</gadget>
<output>2</output>
<gadget id="calculator">2 * 2</gadget>
<output>4</output>
<gadget id="calculator">21 - 4</gadget>
<output>17</output>
<result>17</result>


<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">100 / (5/4)</gadget>
<output>80</output>
<result>80</result>


小明家上月共交水费33.35元，每吨水的价格是2.3元．小明家上月一共用水多少吨？

Xiaoming's family paid a total of 33.35 yuan for water last month, and the price per ton of water is 2.3 yuan. How many tons of water did Xiao Ming's family use last month?

<gadget id="calculator">33.35 / 2.3</gadget>
<output>14.5</output>
<result>14.5</result>