Interesting math questions in the second grade of primary school

Mathematics also plays an irreplaceable role in the development of human history and social life, and it is also an indispensable basic tool for studying and studying modern science and technology. The following is an interesting math problem I compiled about the second grade of primary school. I hope everyone will read it carefully!

1. It takes 94 bricks to repair the flower bed, 36 bricks for the first time and 38 bricks for the second time. How many more bricks do you need to move? (Calculated in two ways)

2. Miss Wang bought a rope, 20 meters long, and cut it off for 5 meters to repair the net. How many meters are left?

3. The canteen bought 60 Chinese cabbages, ate 56 and bought 30. How many cabbages are there now?

4. Xiaohong has 4 1 yuan. She bought three pens at the stationery store, each with 6 yuan money. How much is left?

5. Class Two (1) bought 89 books from the bookstore. The first group borrowed 25 books and the second group borrowed 38 books. How many books are left?

6. There are 126 peach trees in the orchard, which is three times the number of pear trees. How many peach and pear trees are there in the orchard?

7、 1+2+3+4+5+6+7+8+9+ 10=( )

8、 1 1+ 12+ 13+ 14+ 15+ 16+ 17+ 18+ 19=( )

9. Fill in the numbers according to the rules.

( 1) 1,3,5,7,9,( )

(2) 1,2,3,5,8, 13( )

(3) 1,4,9, 16,( ),36

(4) 10, 1,8,2,6,4,4,7,2,( )

10. Add appropriate operation symbols to the appropriate position of the following formula to make the equation hold.

( 1)8 8 8 8 8 8 8 8 = 1000

(2)4 4 4 4 4 = 16

(3)9 8 7 6 5 4 3 2 1=22

10, how many currencies can three tens and two fifties make up?

1 1, somewhat different. 0, 1, 2, 3 can form three digits?

12. Xiaohua took part in the math contest, with the question * * * 10. It is stipulated that the correct answer is given ten points, and the wrong answer is deducted five points. Xiaohua answered all ten questions and got 85 points. How many questions did Xiaohua answer correctly?

13、 2,3,5,8, 12,( ),( )

14、 1,3,7, 15,( ),63,( )

15、 1,5,2, 10,3, 15,4,( ),( )

What numbers do 16, ○, △, ☆ represent respectively?

( 1)、○+○+○= 18

(2)、△+○= 14

(3)、☆+☆+☆+☆=20

○=( ) △=( ) ☆=( )

17、△+○=9 △+△+○+○+○=25

△=( ) ○=( )

18, there are 35 sweets, press naughty? Smile? Tintin? In the order of winter and winter, everyone sends one at a time. Think about it. Who got the last one?

19, Xue Fan has money from 300 yuan, so it costs 128 yuan to buy books and stationery. How much less money is left in Xue Fan than before?

20. Five people ate five big steamed buns in five days. At this rate, how many days will it take 20 people to eat 20 big buns?

2 1, 30 students reported to the art group or calligraphy group. Among them, 26 people from the art group and 7 people from the calligraphy group/kloc-0 participated. How many people are there in both groups?

22, with six short rope into a long rope, a * * * make a knot ().

23. There are 10 carrots in the basket. The little gray rabbit ate half, the little white rabbit ate two, and the rest ().

24. There are some apples and pears around the table. It is known that there are two pears, five apples and how many pears there are between every two apples.

25, with 1, 2, 3 three numbers can form () different three digits.

26. There are two numbers. Their sum is 9, and the difference is 1. These two numbers are () and ().

27. Three children play chess, each of them has to play the next game with the other two, and the next game is ().

28. Fill in 4, 6, 7, 8, 9, 10 in the blank space (grid with three rows and three columns) so that the sum of the three diagonal numbers is 18.

29, 15 children lined up to count off, even children went to play table tennis, and there were () people left in the team.

30. A sika deer jumps 5m forward, 4m backward, 7m forward and10m backward from the starting point; Then stop and have a rest. Do you know whether sika deer stopped before or after the starting point? How many meters from the starting point?

3 1. After my brother gave my brother two pencils, there were five left. At this time, two people have as many pens. My brother had a pencil ().

32. Three children, Lin Lin, Hong Hong and Fang Fang, buy candy. Linlin bought 7 capsules, Honghong bought 8 capsules, but Fangfang didn't. The three children want to share equally. Fangfang paid/kloc-0 yuan, including Lingling () and Honghong ().

33. Three people eat three steamed buns and eat them in three minutes; According to this calculation, it takes nine people () minutes to eat nine steamed buns.

34. A long-distance race is going on on the circular track. Seven people run in front of each athlete and seven people run behind each athlete. There are () athletes on the runway?

35. Put 16 chickens into five cages respectively, so that the number of chickens in each cage is different. How to put it? Please fill in the number of chickens in each cage in the five boxes below.

36. Today, Honghong is 8 years old and her sister 13 years old. 10 years later, her sister is () years older than Honghong.

37. The bus runs every 15 minutes. My brother wants to take the 9 o'clock train at 10, but it's already 9: 20 at the station, so he has to wait () minutes before taking the next train.

38. It took 24 seconds to walk from 1 building to the third floor. Then it takes () seconds to walk from 1 building to the 6th floor.

39. The children in Class Two (1) form a rectangular team to participate in the gymnastics performance. Red left sixth, right second, front fourth, back third. There are () children in Class Two (1).

40. The garage starts at 8 o'clock every morning, and a car is sent every 8 minutes. So from 8: 00 to 8: 40, * * * sent () cars?

4 1, the weight of an apple is equal to the weight of an orange plus a strawberry, and the weight of an apple plus an orange is equal to the weight of nine strawberries. Excuse me, the weight of an orange is equal to the weight of several strawberries.

There is a balance and nine weights, one of which is lighter than the other eight. How many times do I have to say it before I can find the lighter one?

43. According to the law:

( 1)5432 1 432 15 32 154 ( ) 15432 1

(2) 1,2,3(7) 2,3,4( 14) 3,4,5( )

(3) 1,4,7, 10,( ), 16,,()

(4) 1,2,3,7, 1 1, 16,( ),29

(5)2,5,4,5,6,5,( ),5

(6)7,8, 10, 13, 17,( )28

44. 10 One hundred is (), and 10000 includes () one thousand.

The highest digit of 45,3572 is (), which is pronounced as () and 9050 is written ().

46, a 2 cent coin weighs about 4 (); Xiao Ming is seven years old and weighs about 28 ().

47 and 90 have () ten, and 290 has () ten.

48. 6 out of 100 represents more than 6 out of 10 ().