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1, a tit can eat about 800 pests in 5 days. According to this calculation, how many pests can a titmouse eat in a month? A month is 30 days. )

2. A bus travels for 3 hours 174 km. At this speed, how many kilometers can 12 hour travel?

Grandpa Zhang bought three lambs and spent 75 yuan. He wants to buy five more lambs. How much will it cost?

4, 5 boxes of bees can brew 375 kilograms of honey a year. Kobayashi keeps 12 boxes of such bees. How many Jin of honey can he brew a year?

5. 180 Young Pioneers from Yu Ying Primary School helped military families to do good deeds on "Love Day". These young pioneers are divided into five teams on average, and each team is divided into four groups. How many young pioneers are there in each group on average?

6. Uncle Liu took 700 yuan to buy fertilizer, bought 16 bags of fertilizer, and left 60 yuan. What's the price of each bag of fertilizer?

7. Eggs collected by Chunya Chicken Farm on Monday are packed in a box of 18kg. After 8 cases are packed, there is 16kg left. How many kilograms of eggs were collected on Monday?

8. Uncle Wang drove from the county seat to Wangzhuang to deliver fertilizer. It took six hours to walk 40 kilometers per hour when I went there, and only five hours when I came back. How many kilometers per hour did you average when you came back?

9. A tourist bus traveled in the plains and mountains for two hours and finally reached the top of the mountain. It is known that tourist buses travel 50 kilometers per hour in plain areas and 30 kilometers per hour in mountainous areas. How long will this trip take?

10, planting trees on both sides of the road, each side should plant 25 trees per kilometer, this road is 120 kilometers long, one * * *, how many trees should be planted?

1 1. The school is going to distribute exercise books to class 15, with 40 copies for each class14. How many exercise books should schools buy?

12, a tree seedling 16 yuan, buy 3 trees and get 1 tree. How much cheaper is it to buy three at a time?

13. shampoo per bottle 15 yuan. The mall launched a promotion campaign. Buy 4 bottles and get 1 bottle. Buy four bottles at a time. How much cheaper is each bottle?

14. A panda needs to eat 15 kg of feed a day. The zoo has prepared 24 bags of feed, each bag is 20kg. Is this enough for pandas to eat for 30 days?

15. It took six hours for the car to deliver from A to B, with a speed of 32 kilometers per hour. It only took four hours to get back. What is the speed of coming back?

16, Xiaoming climbed the mountain for 4 hours, traveling 3 kilometers per hour, and the downhill speed was accelerated, 6 kilometers per hour. How long did it take to go down the mountain?

17. The workshop originally planned to produce 15 machines per day, which can be completed in 24 days. Actually, 18 units can be produced in one day, and it can be completed in a few days.

18. The experimental primary school should buy a 12 yuan composition guidance book for each of the third and fourth grade students. It is known that there are 145 students in grade three and 155 students in grade four. How much are the two grades?

19, with 370 people traveling and 30 people riding in each car. How many cars do you need to complete this trip?

20, there are 450 kilograms of rice, eat 60 kilograms a day, how many days can you eat at most?

2 1. There are 28 seats in each row of the school auditorium, and the fourth grade 180 students. How many lines can you fill in? How many people are left?

22. Uncle Liu took 800 yuan to buy chemical fertilizer. I bought 16 bags of fertilizer, and 80 yuan was left, each bag of fertilizer.

What is the price?

23. A bus travels for 3 hours 174 km. At this rate, it will take six hours.

How many kilometers is it? How many kilometers can you walk in six hours? You must first ask:

Column solutions:

It took Uncle Li three hours to drive the goods from Foshan to Dongguan. The speed of the truck was 40 km/h, and it took only two hours to get back. How many kilometers per hour did Uncle Li drive when he came back?

25. Party A 14.8 yuan and Party B 15.2 yuan. They want to buy a football together. The price of a football is twice their money. How much is a football? How much are they short of?

26. A machine plows 15 hectares in three hours. According to this calculation, how many hours does it take for five machines to plow 75 hectares?

27. There are 14 boxes of duck eggs in the shop. After selling 250 Jin, there are still 4 boxes of 20 Jin left. How many kilograms are there in each box of duck eggs?

28. bright primary school donated books to students in mountainous areas, with 240 books in grade four, twice as many as in grade five, and more books in grade six than in grade five 120. How many books did you donate per grade on average?

29. The grain store delivered 20 bags of rice and 20 bags of flour, each containing 90 kilograms of rice and 25 kilograms of flour. How many kilograms more rice is brought in than flour? (Answer in two ways)

30. The length of two ropes is 48.4 meters. After cutting 6.4 meters from the first rope, the second rope is 6 meters more than the remaining two of the first rope. How long are the two ropes?

3 1. Grade four and grade five students collect tree species, grade four collects 18.6kg, and grade four collects 2.5kg less than grade five. How many kilograms of tree species do the two grades collect?

32. A workshop used to use 2450 kWh of electricity every month. After the energy-saving activities, the original electricity consumption for one year can now be increased by two months. How many kWh of electricity does this workshop save on average every month?

33. The students took part in tree planting activities. There are 96 students in Grade Four, each of whom planted 3 trees. There are 87 students in Grade Five, each of whom planted 4 trees. How many more trees were planted in the fifth grade than in the fourth grade?

34. Six students in the first group scored 86, 79, 98, 100, 89 and 94 respectively in the math test. What is their average score?

35. A car travels for three hours135km, and an airplane is 28 times faster than a car, 60km less. How many kilometers does this plane fly per hour?

36. A clothing factory produced 850 suits in five days. According to this calculation, how many suits are produced a month? (30 days a month)

37. The store delivered 8 baskets of apples, 12 baskets of pears, each with 38 kg of apples and 42 kg of pears. How many kilograms of fruit did this shop ship?

38. A construction site needs 240 tons of cement, which will be transported by five vehicles. Each car carries 3 tons at a time. How many times does it take to transport it? (There are two comprehensive solutions)

39. The distance between A and B is 750 kilometers. How many hours can a car drive at 50 kilometers per hour to reach B? (List the equations with unknowns and solve them again)

40. Kobayashi in Obana has 12 pencils, and Xiaogang and Xiaohong have 20 pencils. How many pencils do they have on average?

4 1. A primary school in the third and fourth grades needs to water 620 trees. In the third grade, 40 trees should be watered every day for 8 days. The rest will be watered in the fourth grade. How many trees will be watered every day after five days?

42.3 The loom weaves 336m in 4 hours. According to this calculation, how many meters does 1 loom weave in 8 hours?

43. The distance between Party A and Party B is 560 kilometers. One car travels from Party A to Party B at a speed of 48 kilometers per hour, and the other car travels from Party B to Party A at a speed of 32 kilometers per hour. What is the distance between the two cars after five hours?

44. A section of highway was originally planned to be completed in 20 days. Actually, 45 meters are built every day more than originally planned, and the task is completed five days ahead of schedule. How many meters was originally planned to be built every day?

45. Xinhua Bookstore delivered a batch of scientific and technological books, and sold 300 books on the first day, accounting for 30% of this batch of books. How many science and technology books are there in this batch?

46. There are 280 students in Grade Five, 50% of whom are boys. How many boys are there in grade five?

47. There are 300 students in grade six, twice as many as in grade three. There are fewer 10 students. How many students are there in the third grade?

48. There are 60 boxes of apples in the fruit shop, which is three times that of oranges, which is 10 more. How many boxes of oranges are there in the fruit shop?

49. It is known that the length of an iron bridge is 1000m, and a train passes on the bridge. It takes 1 minute for the train to get on the bridge, and it takes 40 seconds for the whole train to completely cross the bridge. Find the length and speed of the train.

50. A woman is washing dishes by the river. People see her and ask her why she uses so many bowls. She replied that there were many guests at home. They share a dish bowl for every two people, a soup bowl for every three people, and a rice bowl for every four people, and * * * used 65 bowls. How many guests are there in her house?

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