65+73+ 135? 357+288+ 143? 272+68+28? 129+235+ 17 1+ 165? 17+ 145+23+35999+99+9+3? 6+7+8+ 102+ 103+ 104? 9998+3+99+998+3+9?

The second category: minus?

400-256-445 17-53-47284- 159-4 1? 258-42- 16? 545- 167- 145478-47- 178? 344-( 144+37)236-( 177+36)?

The third category: multiplication?

45×4×523? ×5×2? 25×9×4? 8×( 125× 13)? (250× 125)×(4×8)

88× 125? 72× 125? 125×64×2542× 125×8×5? 25×4×88× 125?

The fourth category: multiplication

( 12+50)×40? 125×(40-4)76× 103? 18× 125? 25×4442×25? 99×9? 99×78

The fifth category: multiplication?

45×37+37×55? 28×2 1+28×79? 17×23-23×738×46+64×38? 99×32+3246+46×59? 167×2+ 167×3+ 167×5? 39×8+6×39-39×4

application problem

1. Hongshicun Primary School is divided into 6 groups, with 4 people in each group and 360 trees. How many trees are watered per person on average? ?

There are three times as many eggs in the box as in the basket. There are 96 eggs in a box. How many eggs are there in six baskets? ? 3. Uncle Wang's orchard harvested 358 Jin of apples, 270 Jin of pears and 0/96 Jin of plums. Apples are 40kg per box, pears are 30kg per box and plums are 20kg per box. Calculate: How many cartons do you need for each of these fruits? 4. Plant trees along the road with a length of 180m, and plant a tree every 20m. A * * *, how many trees need to be planted? Is it enough for eight of us to buy tickets with 260 yuan money? How many methods can you work out? )?

6. The car travels at18m per second, with a length of18m and a tunnel length of 324m. How long does it take for this car to pass through the tunnel?

7. Chunguang Grain and Oil Company wants to export 680 tons of grain. How many containers does it take to use 22 tons? How many 17 ton containers do you need?

The expressway from Shijiazhuang to Chengde is 546 kilometers long. When can the Hongjia drive from Shijiazhuang to Chengde to visit the summer resort? If it drives 78 kilometers per hour on average, can it leave at 8 am?

9. A rectangular vegetable field is 9 meters long and 6 meters wide. This vegetable field receives 972 kilograms of vegetables. How many Jin of vegetables do you collect per square meter on average?

10. Shanghai Oriental Pearl TV Tower is the tallest TV tower in Asia, with a height of 468 meters. Floor 1 12, high.

39 meters. How high is the TV tower equivalent to several 12-story residential buildings?

1 1. Grandpa Wang's four cows produce 896 kilograms of milk every week. How much milk does an average cow produce every day/kloc-0?

12.4 vehicles transport 960 bags of cement three times. How many bags of cement does each car transport on average?

13.( 1) Each classroom in Shui Bo Primary School has three windows, each with 12 glass, and nine classrooms have more than one * * *.

Less glass?

(2) Liu Yang Primary School has 12 classrooms, each classroom has 3 windows, and each classroom is equipped with 324 pieces of glass. How many pieces of glass are installed in each window on average?

14. Xiaohong bought 2 boxes of mung bean cakes, each box 1 kg. There are 20 pieces in each box. How many grams does each piece weigh on average? 15. If a bus starts from Zhang Cun and travels at a speed of 60km/h, it will take four hours to reach Lizhuang. It only takes three hours to get there. How many kilometers does this bus actually travel per hour on average?

16. Baita Village plans to build a canal. If16m is built every day,18m can be completed. It was built 24 meters on the first day. Take pictures.

How many days can I finish the first day's progress?

17. Hong Guang Hotel bought 100 towels, each 6 yuan. If you use this money to buy an 8-yuan towel, you can buy more.

Less?

18. A pack of A4 copy paper, 25 sheets a day, was used up in 20 days. How many days can I use if I use five fewer cards every day?

19. A professional beekeeper raised 24 boxes of bees this year. Last year, 5 boxes of bees brewed 375 kilograms of honey, according to last year's.

How many Jin of honey can you brew this year? ?

20. Dongdongjia raised 135 trees on the land of 15 square meters. According to this calculation, how big does it take to raise 990 trees?

Land area?

2 1. Garden workers plant trees along one side of the highway, planting a tree every 6 meters, and planting 36 trees in a row. How far is it from the first tree to the last tree? ?

22. Install street lamps on both sides of the street with a total length of 2 kilometers (both ends should be installed), and install one lamp every 50 meters. A * * *, how many street lamps should be installed? 23, a piece of wood length 10 meters, on average, it is divided into five sections. It takes 8 minutes to saw the next section, and how many minutes does it take to see the next section? ?

23.48 Students are playing games on the playground. Everyone forms a square with equal people on both sides. There are people at all four vertices. How many students are there on each side? ?

24. How many pots do you need to put a flowerpot beside a pentagonal pool, so that there are four pots of flowers on each side? ? In order to welcome Children's Day, the school held a group gymnastics performance. The fourth-grade students line up in a square, with 15 people standing on both sides of the outermost layer. How many students are there in the outermost layer? How many people are there in the whole phalanx? ?

26. The big clock in the square strikes five at five o'clock and ends in eight seconds. 12 knock 12 how long does it take? ?

27.5 The total length of bus lines is 12km, and the distance between two adjacent stops is 1km. How many stations are there? ? 28. There are 16 high-voltage poles from Wangcun to Licun, with an average distance of 200m between two poles. From Wangcun to Li

How far is the village? ?

29. The circumference of the circular skating rink is 150. If a lamp is installed every15m along this circle, it should be installed.

How many lamps have been installed? ?

30. There are 5 1 flags on the side of the straight runway, and their interval is 2 meters. Now we only need to plant 26 flags,

How many meters should the interval be changed to? ?

1. There is a square flower bed in front of the school building. There are 8 pots of flowers on both sides of the outermost layer of this flower bed, and the outermost layer is * * *

How many potted flowers are there? ?

32. One table seats 6 people, two tables sit together 14 people, and three tables sit together 14 people. So, 10 how many people can sit in a row of tables? If there are 38 people, how many tables do you need to sit? ? 33. A woodpecker can eat 45 15 pests in 7 days, and a tit can eat 1 155 pests in a week. How many pests do woodpeckers eat more than tits every day?

Xiao Ming and Xiao Wang are running on the circular track. They walked in opposite directions from the same place at the same time. Xiaoming runs 4 meters per second and Xiao Wang runs 6 meters per second. Eighty seconds later, they met for the second time. ?

(1) How many meters is Xiao Wangrun more than Xiao Ming? (2) How many meters is the circular runway? ?

35. In the fruit shop, apples are 3 yuan per kilogram and bananas are 4 yuan per kilogram. (1) Miss Li bought a kilo of apples and a kilo of bananas. How much should she pay? (2) When a=3 and b=2, how much should be paid? ?

36. Cars travel 100 kilometers per hour, and buses travel 80 kilometers per hour. (1) If two cars go to a place in the same direction at the same time, how many kilometers will the two cars be apart after 5 hours? (2) If you go in the opposite direction, how many kilometers will the two cars be apart after 3 hours? ?

37. The rectangle is12m long and 8m wide. If the length and width are increased by 2 meters each, how many square meters will the area increase? Draw a picture before you answer?

38.4 Children send each other 1 card. A * * *, how many cards will they issue? If you shake hands with each other, how many times do you shake hands? ? 39. Xiaoming reads books. He reads 12 pages every day for the first three days, and 20 pages in the last two days. So which page should he start from on the sixth day?

40. A road construction team needs to build a 6000m-long road, with an average of100m per day. How many meters are left after 3 1 day of construction? There are 48 baskets of pears in the fruit shop, which is 12 basket, more than three times that of apples. How many baskets of apples are there?

42. Buy 8 footballs, 1 128 yuan and 12 volleyballs. Suppose each football is 78 yuan, and find the price of each volleyball. 43. Use a batch of paper to order exercise books, each with 30 pages, and you can order 2000 copies. If each book has 50 pages, you can order some exercise books with 44.25 kilograms of soybeans. According to this calculation, soybean 175 kg is used. How many kilograms of tofu can you make?

45.25 kg of soybean can be used as tofu 100 kg. According to this calculation, how many kilograms of soybeans do you need to make 700 kilograms of tofu?

46. My brother has 27 exercise books. After giving my brother eight copies, the number of exercise books for both of them will be the same. My brother has several exercise books.

47. Last year, a school-run factory originally planned to produce 3 190 stationery boxes per month, but actually produced 1 1 month, and completed the annual planned task. How many more pencil boxes are actually produced each month than originally planned? ?

48. A line can enclose a square with a side length of 12 cm. Now straighten the wire and enclose a rectangle with a length of 14 cm. What is the width of this rectangle? ?

49. There are seven baskets of apples. If you take out 20 kilograms from each basket, the apples left in the seven baskets are exactly equal to 105 kilograms. How many kilograms are there in each box?

50. There are seven baskets of apples. If each basket takes out 20 kilograms, then the remaining apples in seven baskets are exactly equal to the weight of five baskets. How many kilograms are there in each box?

5 1. A mountain road, Xiao Qiang takes 50 minutes to walk from the foot of the mountain to the top of 400 meters, and it only takes 40 minutes to get there from the top of the mountain. Is the downhill known? 85 meters per minute when walking, and how many meters per minute when going up the mountain? ? 52. Sporting goods factory produces 7 150 footballs, which is exactly 25 times the output of basketball. How much is the output of basketball less than that of football? ?

53. The distance between cities A and B is 240 kilometers. It takes 4 hours for a bus to travel from city A to city B, and 5 hours for a truck to travel from city B to city A. How many kilometers does the bus travel per hour more than the truck? ?

54. Fertilizer is transported by car four times in the morning, with an average of 350 bags per trip; Five times in the afternoon, with an average of 300 bags each time. How many bags of fertilizer will be delivered today? ?

55. The rabbit farm sold 128 rabbits, which was 32 times that of the remaining rabbits. How many rabbits are there? ?

56. Four classes in Grade Four did 752 good deeds, and on average, each class did twice as good deeds as Grade Three. How many good deeds did the third-grade students do? ?

57. Xiaogang has 1 14 stamps, and his father gave him 68 stamps. He inserted these stamps into a 14 page stamp album. How many sheets of paper are inserted per page on average? ?

58. The construction team built an expressway, which was originally planned to be completed in 25 days, 300 meters a day. Now it has to be completed 15 days in advance. How many meters do you need to repair every day?

59. On the first day, the department store sent eight cars of clothes with 36 boxes each, and the next day, eight cars with 42 boxes each were sent. How many boxes are delivered every two days?