1. There are 56 apples. Can a three-in-three pack just fit? What about two and two packs? Five. What about five?

2. Mom bought some calla lilies and tulips in the flower shop. A calla lily, a 1 yuan, a tulip and a 5 yuan. Mom paid 5 yuan to get 13 yuan back, right?

3. Students participate in the interest group. There are 22 people in one group, and 3 people are divided into groups. How many more people will it take to finish?

surface area calculation of cuboids and cubes

1. How long does it take to make 1 cubic iron frames with edges of 8 cm?

2. Make an iron box with iron sheet so that its length, width and height are 1.8 decimeters, 1.5 decimeters and 1.2 decimeters respectively. How many square meters does it take to make such an iron box?

3. How many square meters of glass do you need to make an uncovered cube glass fish tank? The edge length is 3 meters.

4. Our school needs to paint the classroom, which is 8m long, 7m wide and 3.5m high. After deducting the area of doors, windows and blackboards of 13.8m, it is known that 5 yuan painting fee is required for each m2. How much does it cost to paint a classroom?

5. A commodity box is a cube with a side length of 6 cm. What is the largest area of the box with a trademark?

6. The length, width and height of wood blocks are 2.8 decimeters, 1.5 decimeters and 2.2 decimeters respectively. How many square meters should wood blocks be used to make five such drawers?

7. There is a fish pond 18 meters long, 12 meters wide and 3.5 meters deep. It is necessary to apply a layer of cement on all sides of the fish pond to prevent water seepage. If 5 kilograms of water and mud are used per square meter, how many kilograms of cement is needed for one fish pond?

8. The processing factory has to process a batch of TV sets. (There is no bottom) Each TV set is 6 cm long, 5 cm wide and 55 cm high. How many square meters of cloth should be used to make 1 sets?

9. how many square meters of iron should be used to make 24 rectangular iron chimneys, each of which is 2m long, 4m wide and 3m high?

1. A rectangular goldfish bowl is 8 decimeters long, 5 decimeters wide and 6 decimeters high. The glass in front of it was accidentally broken, and the area of the glass matched during repair was ()

Volume calculation

1. The length, width and height of a rectangular box are 4 decimeters, and the volume is 3 decimeters.

2. A cuboid bunker is 4 meters long, 2 meters wide and .5 meters deep. If the yellow sand weighs 1.4 tons per cubic meter, how many tons does it weigh?

3. There is a rectangular steel, which is 2 meters long and the cross section is a square with a side length of 5 centimeters. The weight of steel per cubic decimeter is 7.8 kilograms. How many kilograms does this square steel weigh?

4. A cuboid with a bottom area of 3 square decimeters and a height of 3 meters, how many cubic decimeters is its volume?

5. A writing desk is 1.3m long, .6m wide and .8m high. How much space does it take to have 2 such writing desks?

6. A cube fish tank with a side length of 5 decimeters is filled with water. Pour the water into a cuboid fish tank with a bottom area of 48 square decimeters and a height of 6 decimeters. How deep is the water in the fish tank?

7. A cube tank with a length of 8 decimeters contains 49 liters of water. Pour the water into a cuboid tank with a length of 1 decimeters, a width of 7 decimeters and a height of 8 decimeters. What is the water depth in the tank?

8. Forging a cube billet with a length of 8 cm into a rectangular steel plate with a length of 16 cm and a width of 5 cm, how thick is this steel plate? (Loss excluded)

9. A cuboid oil drum with a bottom area of 18 square decimeters can hold 43.2 kilograms of oil. If each liter of oil weighs .8 kilograms, what is the oil height in the oil drum?

1. A rectangular iron sheet is 3cm long and 25cm wide. Cut a square with a length of 5cm from each of the four corners and make it into a box without a cover. How much iron sheet is used in this box? What is its volume?

11. Cut a rectangular wooden board with a length of 26dm, and cut off squares with a side length of 3 m at four corners, and make it into a cuboid container with a volume of 84 cubic decimeters. What was the original width of this wooden board?

12. A rectangular swimming pool is 6 meters long, 3 meters wide and 2 meters deep. How many square meters does the swimming pool cover? Draw a water level line with red paint 1.5 meters along the inner wall of the swimming pool. What is the length of this line? Now the water in the swimming pool just reaches the water level line. How about the volume of water in the pool?

The meaning of the score is very basic.

1. A flower bed of 3 square meters is planted with 4 kinds of flowers. How many square meters does each flower occupy on average? What about five kinds? (expressed in fractions)

2. It took Ming 15 minutes to walk a kilometer, with an average of several kilometers per minute.

3. The teacher bought five meters of red ribbon for the students, and distributed it to six people on average. How many meters can each person divide?

4. The department store sold 15 televisions and 7 washing machines today. How many TV sets are sold compared with washing machines?

5. Two fifths of the students in our class joined the dance group, and four tenths of them joined the calligraphy group. Which group has more people?

1. laying an underground cable on Zhongyuan road, which has been laid for 34 meters, leaving 25 meters unpaved. How many meters is the total length of this cable

2. Repairing a section of the road, 1/4 of the total length was repaired on the first day, and 9 meters were repaired on the second day. At this time, there are 15 meters left to be repaired. How many meters is this section of road?

3. There was a pile of yellow sand on the construction site, and 23 of it was used, which was exactly 6 tons. How many tons was this pile of yellow sand?

4. Sound travels about 1 km in air for 3 seconds, and the speed of light is about 3, km per second. What fraction is the speed of sound?

5. A wheat experimental field was originally planned to produce 8 tons of wheat per hectare, but how much did it actually produce per hectare?

6. The staff canteen planned to burn 5 tons of coal in April, but actually burned 4.8 tons. What percentage was saved?

7. 4,25 kilograms of flour can be ground with 5, kilograms of wheat, and the flour yield of wheat can be obtained.

8. The flour yield of wheat is 8%. How many kilograms of wheat do you need to grind 64 kilograms of flour?

9. There are 5 students in Class 6 (1), and two of them take time off one day. What is the attendance rate for that day?

1. On Arbor Day, * * * planted a number of trees, 485 trees survived, and 15 trees did not survive, so please find the survival rate of this tree planting.

11. Miss Wang went to the sporting goods store to buy five small soccer balls, paid 1 yuan and got back 32.5 yuan. How much is each small soccer ball?

12. At the same time, two cars of Party A and Party B leave from two places which are 255 kilometers apart. Car A travels 52 kilometers per hour, while car B travels 57 kilometers per hour. After a few hours, the distance between the two cars is still 37 kilometers?

13. The master and the apprentice * * * processed 28 machine parts, and the number of parts processed by the master was four times more than that of the apprentice. How many parts did the master and the apprentice each process?

14. Wang Fang's deposit is 2.2 times that of Li Li's deposit. If Li Li deposits in the bank 75 yuan again, their deposits will be equal. How much did they deposit?

15. In the fifth grade, buy a batch of notebooks and give them to three excellent students. If each student gives five notebooks, there are three left. If each person is awarded 6 books, there will be 12 books missing. How many "three good" students were selected in the fifth grade? How many notebooks did you buy?

16. There are 8 sheep on the hillside, among which the number of white sheep is four times that of black sheep. How many black sheep and white sheep are there on the hillside?

17. There are two baskets of oranges sold in the store. The first basket weighs 26kg, and the second basket weighs 29kg. The second basket sells more 9 yuan money than the first basket. How much is the average per kilogram of oranges? (Solve in two ways)

18. A trapezoidal wheat field, with an area of 54 square meters, is 18 meters high, with an upper bottom of 2 meters and a lower bottom of how many meters?

19. Two cars, A and B, leave from two places 75 kilometers apart at the same time, facing each other and meet for 5 hours. Car A travels 8 kilometers per hour, and car B travels how many kilometers per hour?

2. Two cars leave from the same place at the same time. After driving for 4.5 hours, car A falls behind car B for 13.5 kilometers. It is known that car A travels 35 kilometers per hour. How many kilometers does car B travel per hour?

21. Students went for a spring outing, and there were already 45 people on the bus. There are still four groups waiting for the next bus, with 9 people in each group. How many people went for a spring outing?

22. One * * * 15 people went for a spring outing, and 54 people have already left. The rest will go by two cars. How many people will each car take on average?

23. There are 18 boys in the dance team, and the number of girls is twice that of boys. How many boys and girls are there in the dance team?

24. Students made flowers. Xiaojun made 63 flowers, Xiaohong made 18 fewer flowers than Xiaojun. How many flowers did they make together?

25. I bought 25 kilograms of Chinese cabbage for the first time and 175 kilograms of Chinese cabbage for the second time in the canteen. How much does it cost to buy Chinese cabbage in the canteen, based on 6 cents per kilogram?

26. Xiaohua showed Xiaogang a book. Xiaohua read 132 pages in 4 days and Xiaogang read 96 pages in 3 days. Who reads fast? Why?

27. Mom bought three T-shirts for Xiaoming, and each T-shirt was paid to 1 yuan, the shop assistant. How much should I get back?

28. Sporting goods stores used to have 72 basketballs, but they sold 6 and bought 45. How many basketballs are there now?

29. Students went to visit the Observatory. There were 9 girls, and the number of boys was three times that of girls. Is a 4-seat car enough?

3. There are 24 boxes of chess in the school activity room. The number of boxes of military flags is twice that of chess, and there are 12 boxes of checkers. How many boxes are fewer than military flags?

31. The school bought 8 boxes of white chalk and 2 boxes of red chalk, and used 6 boxes. How many boxes are left?

32. The teacher has 8 bags of table tennis, 6 in each bag, and lent 15 to his classmates. How many are left?

33. The teacher took 7 yuan to buy books and bought seven sets of story books, each set of 9 yuan. How much is left?

34. The garment group has 9 meters of cloth, 63 meters was used, and the rest of the cloth was made into 9 sets of clothes. How many meters of cloth is used for each set of clothes on average?

35. There are 8 packets of instant noodles in the grocery store. I sold 26 packets in the morning and 34 packets in the afternoon. How many packets are left? (Answer in two ways)

36. A chemical fertilizer factory produces 31 tons of chemical fertilizer in January, 4 tons in February and 49 tons in March. How many tons of chemical fertilizer does it produce on average every month?

37. A horse eats 12 kilograms of grass every day. According to this calculation, how many kilograms of grass can 25 horses eat a week? (Calculated by two methods)

38. Worker Master Wang and his apprentice make machine parts, Master Wang makes 45 per hour, and his apprentice makes 28 per hour. Master Wang works for 6 hours and his apprentice works for 8 hours. How many machine parts do they make?

39. The factory has 8 kilograms of coal, which was originally planned to burn for 25 days. Due to the improvement of the stove, it actually burned for 32 days. How many kilograms are saved on average every day compared with the original plan?

4. The construction site needs 128 bags of cement, and it takes 8 carts to transport them all for 4 times. How many bags of chemical fertilizer can one cart transport at a time? (calculated by two methods)

41. The farm tools factory produced 4,65 farm tools in the first half of the year and 5,382 farm tools in the second half of the year. How many farm tools did it produce on average every month throughout the year?

42. The garment processing department can make 24 sets of adult uniforms with 12 meters of cloth, and 3 sets of children's clothes. How many meters less cloth is used for each set of children's clothes than for adults?

43. A chicken farm sold 12,3 chickens in April, but in May it sold 2 fewer chickens than in April. How many chickens were sold in two months?

44. One flour mill grinds 8 kilograms per hour. According to this calculation, how many kilograms of flour can six flour mills grind in five hours? (Answer in two ways)

45. A pile of coal is ***8 tons, which can be transported by five trucks in 16 times. How many tons does each truck transport on average?

46. A car travels 3 kilometers in 6 hours, and a train travels 6 kilometers in 6 hours. How many kilometers does the train travel more than the car per hour?

47. During a week, the meteorological team of Xiangyang Primary School measured the highest temperatures every day: 31, 31, 34, 32, 33, 3 and 33 degrees respectively. What is the highest average temperature this week?

48. A factory originally planned to produce 4,8 farm tools a year, but actually completed the task in 1 months. How many more farm tools are actually produced per month than originally planned?

49. One machine can process 32 parts in 8 hours. According to this calculation, how many hours will it take to process 2, parts with 5 machines?

5. A coal mine planned to produce 38,4 tons of coal in April. After technological innovation, the average daily output increased by 256 tons compared with the original plan. How many tons of coal did it actually produce in April? (calculated by 3 days)

51. There are 6 people in the first group, and the average score of 5 people in the Chinese exam is 85. After adding Wang Gang's score, the average score is 87. What is Wang Gang's test score?

52. Two water pipes discharge water into the pool at the same time. The thick pipe discharges 15 tons of water per hour and the thin pipe discharges 11 tons of water per hour. How many tons of water can this pool hold after 8 hours? (calculated by two different methods)

53. A rectangular playground is 5 meters long and 4 meters wide. After expansion, the length and width are increased by 5 meters respectively. How many square meters has the playground area increased after expansion?

54. A train traveled 366 kilometers in 6 hours in the morning and 276 kilometers in 4 hours in the afternoon. How many kilometers did the afternoon travel more than the average hour in the morning?

55. A factory uses 12 tons of coal in the first six months and 12 tons in the second half of the year. Calculated by 8 yuan, how much does the average monthly coal consumption in the second half of the year save compared with the first half?

56. A forest farm planted 148 trees the year before last, and the number of trees planted last year was twice that of the year before last. This year, there are 42 more trees planted than the total number of trees planted in the previous two years. How many trees will be planted this year?

57. A rectangle is 21cm long, which is three times as wide. What is the circumference and area of this rectangle?

58. One ton of waste paper can produce 7 kilograms of paper. If one kilogram of paper can make 25 exercise books, how many exercise books can the paper produced by 12 tons of waste paper make?

59. It takes 4 tapes to record a Qigong report, and it takes 3 minutes to record a full tape. How many hours has this report been recorded?

6. A bulldozer can pave 6 meters in 3 hours. If it paves 2 meters per hour, how many meters can it pave in 8 hours?

61. Farmers in Lizhuang transported wheat to the grain depot. On the first day, they transported 1 wagons, and on the second day, they transported 7 wagons, each carrying 2 tons of 4 kilograms of wheat. How many kilograms were transported in two days? How many tons and kilograms?

62, 1 wet bricks weigh 45kg, and each brick loses 85g after being dried. How many kilograms do 1 wet bricks weigh after being dried?

63, an automatic packaging