Lead: We should strengthen the training of application problems in primary schools and constantly improve our ability to solve problems. The following is the addition application problem I sorted out for you in the second grade of primary school. I hope it will help you!

The application problem of addition in the second grade of primary school is 1. Students want to make 80 paper boats, and have already made 47. How much more do they need to make?

2.24 butterflies flew away from the flowers, 16 butterflies flew away. How many butterflies have flown away twice?

There are 57 planes in the airport, 18 left. How many planes are there at the airport now?

Kobayashi planted 48 pots of safflower and the same amount of yellow flowers. How many pots of two kinds of flowers?

The school originally had 35 exercise books and bought back 45. How many are there now?

6. There are 45 apples in Xiao Qiang's family, which were eaten 17. How many?

7. There are 28 cars in the bus station, and there are 3 left. How many cars are there?

8. Children cut paper with 18 red paper and the same amount of yellow paper. How many sheets of paper did they use?

9. 49 horses in the racecourse, 15 horses. How many horses are there in the racecourse now?

10, store 85 fans, sold 18 fans. How many fans are there now?

1 1. There are 25 pots of orchids, chrysanthemums and sunflowers in the school, including 6 pots of orchids, 8 pots of chrysanthemums and several pots of sunflowers.

12, Xiaoqing drew 28 paintings twice, 9 paintings for the first time, and how many paintings for the second time?

13, Xiaohong's family has 38 apples and pears, of which 16, how many pears?

14. The school will send 89 boxes of stationery to primary school students in mountainous areas. First, 18 cases were sent, and then 24 cases were sent. How many boxes do you want to send?

15. White rabbits eat 5 cabbages every day. How much cabbage does he eat a week (7 days)?

16. There are 9 trees on both sides of a road. A * *, how many trees have been planted? (by multiplication)

17.28 cars left the parking lot, leaving 19 cars. How many cars are there in the parking lot?

18, 18 carts came from the parking lot, and the same number of cars came. How many cars have come twice?

19. There are 8 groups of football in the school gymnasium, 7 in each group. One * * *, how many?

20. Eight chairs were repaired in the morning and afternoon of Senior Two, three times as much as in the morning. How many chairs have been repaired in one day?

2 1, Ming Ming calculated 8 math problems in the morning, which doubled in the afternoon. How many problems did he work out in the afternoon?

(1) How many questions did you calculate in the morning and afternoon?

(2) How many questions are there in the afternoon than in the morning?

22. There are 28 female students and 9 male students in the library. How many boys are less than girls?

23. There are 9 big monkeys in the zoo. The number of small monkeys is three times more than that of big monkeys, with 58 monkeys. How many little monkeys are there?

There are 47 footballs and 20 basketballs in the school. How many football is less than basketball?

25. There are 19 potted orchids and 35 potted chrysanthemums in the garden. How many pots of orchids can be planted as many as chrysanthemums?

26. Mom bought 28 red flowers, 16 blue flowers and 24 yellow flowers.

(1) How much more red flowers are there than blue flowers?

(2) How many fewer blue flowers are there than yellow flowers?

27. Xiaohua made four envelopes. The population of Xiao Liang is three times that of Xiaohua. How much did Xiao Liang do?

28. There are two bookshelves. 28 books on the first floor, and 19 books on the second floor. How many books are there on the second floor?

29. Mom bought 17 apples, and pears are 24 more than apples. How many pears did she buy?

30. There are eight hens. The number of hens is 7 times less than that of chickens. How many chickens are there?

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