I asked 50 elementary school application questions and got extra points today.

1, the school bought 100 Jin of cabbage and ate 4/5. How many Jin did you eat? How many kilograms are left?

2. A volleyball is priced in 60 yuan, and the price of basketball is 5/6 of that of volleyball. What is the price of basketball?

Xiaohong weighs 42kg, Xiaoyun weighs 40kg, Xiao Xin is as heavy as Xiaohong.

65438+ 0/2 of Xiaoyun's total weight. How much does Xiao Xin weigh

4. There is a stack of paper, *** 120. I used 3/5 for the first time and 1/6 for the second time. How many pieces of paper have I used twice?

5.200 1 year, there are about 2,000 wild red-crowned cranes in the world, of which China accounts for 1/4. How many in other countries?

6. There is 18 yuan in Liang Xiao's savings box, and the money saved by Xiaohua is 5/6 of that of Liang Xiao and 2/3 of that of Xiao Xin. What's the deposit in Xiao Xin?

7. Xiaohong has 36 stamps, Xiao Xin's stamps are 5/6 of Xiaohong's, and Xiaoming's stamps are 4/3 of Xiao Xin's. How many stamps does Xiaoming have?

8. People's heart rate changes with age. Teenagers jump about 75 times a minute, and babies jump 4/5 times more than teenagers. How many times does the baby's heart beat more than that of teenagers?

9. A farm raises 1200 ducks, raising 3/5 more chickens than ducks, and how many more chickens than ducks?

10, the number of people's heartbeats changes with age. Teenagers jump about 75 times a minute, and babies jump 4/5 times more than teenagers. How many times does the baby's heart beat every minute?

1 1, a farm raises 1200 ducks. Raising chickens is 3/5 more than raising ducks. How many chickens are there?

12. There are 20 footballs in the school. Basketball is more than football 1/4. How many?

13. There are 20 footballs in the school. Basketball is less than football 1/5. How much less is basketball than football?

14. the original price of a kind of clothing 105 yuan, now the price is reduced by 2/7. How much is the current price less than the original price?

15. There are 20 footballs in the school, and basketball is less than football 1/5. How many?

16, the original price of a garment 105 yuan, now the price is reduced by 2/7. What's the current price?

There are 17 pear trees and 20 apple trees in the school orchard. How many pear trees are there than apple trees?

There are 18 pear trees and 20 apple trees in the school orchard. How many times are there more apple trees than pear trees?

19. There are 15 pear trees and 20 apple trees in the school orchard. How many apples are there than pears?

20. There are 15 pear trees and 20 apple trees in the school orchard. How many pear trees are fewer than apple trees?

2 1, a child contains 28 kilograms of water, accounting for 4/5 of the body weight. How many kilograms does the child weigh?

22. The price of a pair of trousers is 75 yuan, which is 2/3 of that of a coat. How much is a coat?

23. The fruit shop sent a batch of fruits. The first batch of 50 kilograms and the second batch of 70 kilograms are exactly 1/4 of this batch of fruits. How many kilograms are there in this batch of fruit?

24.A car from A to B traveled 1/4 in the first hour, 5/ 18 in the second hour and1/4 km in two hours. How many kilometers is the highway between these two places?

25, a bucket of water, using 3/4 of it, is exactly 15 kg. How much does this bucket of water weigh?

26. Xiaohong bought a bag of rice, ate 5/8, and left 15 Jin. How many kilograms of rice did you buy?

27. The model airplane team in bright primary school is 4/5 of the biological team, and the number of the biological team is 0/3 of the 65438+ art team. There are 8 people in the model airplane group and how many in the art group?

28. Five-sixth grade students in Qianwan Primary School take part in winter exercise, among which 45 are girls, accounting for 3/7 of the total number of students taking part in exercise. How many students are there in the sixth grade?

The shop brought some fruits and 20 baskets of apples. The number of baskets of pears is 3/4 of that of apples.

At the same time, it is 3/5 of that of oranges. How many baskets of oranges did you send?

30. An engineering team built an expressway. In the first week, this road 1/4 was completed. In the second week, this road was completed in 2/7, and the second week was 2 kilometers more than the first week. How many kilometers is this road?

3 1. There are 20 footballs in the school, more than basketball 1/4. How many basketballs are there?

32. When water freezes, the volume increases110. There is a piece of ice with a volume of 2 cubic decimeters. What is the volume after melting?

33. An engineering team built an expressway. The first day is 38 meters, and the second day is 42 meters. What was less repaired on the first day than on the second day was 1/28 of the total length of this highway. How many kilometers is this highway?

34. There are 20 footballs in the school, less than basketball 1/5. How many basketballs are there?

35. The gas consumption of the school canteen in September was 640 cubic decimeters, and the planned gas consumption in 10 was 9/ 10, while the actual gas consumption in 10/2 was less than the original plan. /kloc-How many cubic decimeters of natural gas did you save in October compared with the original plan?

35. The shoe factory produces leather shoes. The even number generated in 10 is 5/4 of the even number generated in September. /kloc-2,000 pairs were produced in October and how many pairs were produced in September?

36. There is a bag of rice. I ate 40% in the first week, and in the second week 12 kg, there were 6 kg left. How many kilograms is this bag of rice?

37. An engineering team built an expressway. In the first week, the road was completed by 25%, in the second week, the road was completed by 2/7, and in the second week, it was 2 kilometers more than in the first week. How many kilometers is this road?

38. An engineering team built an expressway. The first day is 38 meters, and the second day is 42 meters. What was less repaired on the first day than on the second day was 1/28 of the total length of this highway. How many kilometers is this highway?

39. Master Zhang processed a batch of parts, and the number completed on the first day accounted for 1/3 of the total number of parts. If 15 pieces are processed, half of this batch of parts can be completed. How many parts are there in this batch?

40. Xiaohong reads a story book. I read 45 pages on the first day and 1/4 of the whole book on the second day. The number of pages I read the next day was only 20% more than the first day. How many pages are there in this book?

4 1, the length of a steel pipe12m, cut off 8m. What percentage of the total length was cut off? What percentage of the total length is left?

42. The length of a steel pipe is12m. 1/3 meters How many meters are left after cutting off?

43. The length of a steel pipe is12m. 1/3 How many meters are left after cutting?

44, a steel pipe, cut off the total length 1/3, leaving 3 meters, what is the total length of this steel pipe?

46. The road between Party A and Party B is 216km long. A car has traveled 3/8 of the way from A to B. How many kilometers is it from B to B?

47. A car travels from place A to place B, the whole journey is 3/8, which is exactly 8 1 km. How many kilometers is the highway between these two places?

48. Car A has traveled 3/8 of the way from A to B, and there is still 135km from B ... How many kilometers is the highway between these two places?

49. The first hour 1/4 from A to B, and the second one.

I walked 5/ 18 in one hour and 1 14 km in two hours. How many kilometers is the highway between these two places?

50. According to the formula, the supplementary condition is that warehouse A has 60 tons of grain. How many tons of grain is stored in warehouse B?

( 1)60× 1/5 (2)60 ÷ 1/5

(3)60×( 1 — 1/5) (4)60×( 1 + 1/5)

(5)60÷( 1 — 1/5) (6)60÷( 1 + 1/5)

5 1: according to the conditions and formulas, ask questions: a batch of 320 tons, 1/5 of the first shipment and 1/4 of the second shipment.

( 1)320× 1/5 (2)320× 1/5

(3)320×( 1/4 — 1/5) (4)320×( 1/4+ 1/5)

(5)60÷( 1 — 1/5— 1/4) (6)60×[ 1—( 1/4+ 1/5)×2]

52. Use a straight line to connect the following questions with the corresponding formula: Yucai Primary School has 120 boys.

(1) Boys are 3/5 of girls. How many girls are there? 120÷3/5

(2) Girls are 3/5 of boys. How many girls are there? 120×( 1 + 3/5)

(3) There are 3/5 more girls than boys. How many girls are there? 120÷( 1 — 3/5)

(4) Boys are 3/5 less than girls. How many girls are there? 120×3/5

(5) Boys account for 3/5 of the total. How many girls are there? 120÷3/5×( 1 — 3/5)

53. There are 18 white rabbits and black rabbits in the feeding group, of which only the white rabbit is a black rabbit.

1/5. How many white rabbits and black rabbits are there?

54. There are 18 white rabbits and black rabbits in the feeding group, of which only black rabbits are white rabbits.

1/5. How many white rabbits and black rabbits are there?

55. Desk is more expensive than chair 10 yuan. If the unit price of chairs is 3/5 of that of desks, what is the unit price of desks and chairs?

56. In the first half of September, a construction site used 0/8 tons of cement/KLOC, and the cement used in the second half was 8/9 of that in the first half. How many tons of cement will be used in September?

57. A construction site used 34 tons of cement in September, of which 8/9 was used in the second half of the year. How many tons of cement were used in the first half and the second half?

58. The number of boys in Juyu Primary School is 4/3 of that of girls, and there are 539 students in the whole school. How many boys and girls are there?

59. A section of highway is 30 kilometers long. Team a 10 days, team b 15 days. How many days does it take for two teams to repair together?

60. Team A will complete a section of the road in 10 days, and Team B will complete it in 15 days ... How many days will it take for the two teams to repair together?