Six butterflies flew away from the flowers, and five others flew away. How many flew away twice?
There were 15 planes at the airport, and three of them flew away. How many planes are there at the airport now?
Xiaoping planted 7 pots of safflower and the same amount of yellow flowers. How many pots of two kinds of flowers?
The school used to have 5 bottles of glue and bought back 9 bottles. How many bottles are there now?
6. Xiao Qiang has 10 apples. I ate seven apples. How many more are there?
7. There are 13 cars in the passenger station, and three cars have already left. How many cars are there?
8. Children make paper-cuts with 8 pieces of red paper and the same amount of yellow paper. How many sheets of paper did they use?
9. There are 9 horses in the racecourse, and 5 more will come soon. How many horses are there on the racetrack now?
10, the store has 15 fans, and 5 fans have been sold. How many fans are there now?
1 1. The school has *** 15 pots of orchids and chrysanthemums, 6 pots of orchids and several pots of chrysanthemums.
12, Xiaoqing drew twice 17, the first time was nine, and the second time was how much?
13, Xiaohong's family has *** 13 apples, 4 apples and how many pears?
14. The school wants to send 12 boxes of stationery to primary schools in mountainous areas. Seven boxes have been delivered. How many more boxes do you want to send?
15. There are 1 1 cabbage at home. After eating five, how many more?
16. There are 48 trees on both sides of a road. A * *, how many trees have been planted?
17. Eight cars left in the parking lot, leaving 24 cars. How many cars are there in the parking lot?
18. Eight carts and the same number of cars were taken away from the parking lot. How many cars have been driven away twice?
19. There are 6 footballs in the school gymnasium, and 20 have been bought. How many are there now?
20. Learn from Lei Feng. The team repaired 8 chairs in the morning and 9 chairs in the afternoon. How many chairs have been repaired in one day?
2 1, I calculated 12 math problems in the morning and 8 math problems in the afternoon. How many more math problems did you work out in the morning than in the afternoon?
22. There are 20 girls in the library, 10 boys. How many boys are less than girls?
There are 20 big monkeys and 30 small monkeys in the zoo. How many little monkeys are there than big monkeys?
24. School football 10, basketball 16. How much less is football than basketball?
There are 40 pots of orchids and 60 pots of chrysanthemums in the garden. How many pots of orchids can be planted as many as chrysanthemums?
26. Mom bought 18 red buttons, 10 white buttons and 8 black buttons.
(1) How many red buttons are there than white buttons?
(2) How many black buttons are there than white buttons?
27. Xiaohua made 20 envelopes. Liang Xiao earned 6 pounds more than Xiaohua. How much did Liang Xiao do?
28. There are two bookshelves. There are 16 books on the first floor. There are eight books on the second floor. How many books are there on the second floor?
29. Mom bought six apples. There are four more pears than apples. How many pears are there?
30. There are 30 roosters in the feeding group, and there are 48 hens more than roosters. How many hens are there?
3 1, 84 people went for an outing in grade four, 8 people went for an outing in grade five, and how many people went for an outing in grade five?
32. The choir has 28 female students. There are four fewer boys than girls. How many male students are there?
33. Xiaohua has 32 white sheep, and the number of black sheep is less than that of white sheep 12. How many black sheep have you raised?
Students took part in labor and picked 40 baskets of cucumbers. White melons are picked less than cucumbers 18. How many baskets did you pick?
35. Xiaoming patted the ball for the first time, 35 times, 7 times less than the first time. How many times was the second time?
36. Xiaoying has made 30 red stars, and 12 yellow stars are less than red stars. How many yellow stars did she make?
37. The school bought 37 boxes of white chalk and 8 boxes of colored chalk. How many boxes of chalk did it buy?
38. The school bought 45 boxes of white and colored chalk, including 8 boxes of colored chalk. How many boxes of white chalk?
39. The school bought 37 boxes of white chalk and 8 boxes of colored chalk. How many boxes of colored chalk are less than white chalk?
40. The school bought 8 boxes of colored chalk, and white chalk bought 29 boxes more than colored chalk. How many boxes of white chalk?
4 1, the school bought back 37 boxes of white chalk and 29 boxes of colored chalk. How many boxes of colored chalk did you buy back?
42. There are 35 litchi trees and 26 longan trees in the orchard.
(1) How many trees are there in a * *?
(2) How many longan trees are fewer than litchi trees?
Xiaoying made 42 red flowers, 34 yellow flowers and 15 white flowers.
(1) How much more red flowers are there than yellow flowers?
(2) How much less white flowers are than red flowers?
(3) How much less white flowers are than yellow flowers?
(4) How many flowers are there in a * * *?
Choose an appropriate question, draw a ""and work it out.
(1) The store sold 50 dolls twice and sold 30 dolls for the first time ...?
(1) How much did you sell for the first time?
② How much is it sold for the second time?
(3) How many are sold twice?
(2) There are 60 chickens and 28 hens.
(1) How much is left?
② How many hens are fewer than chickens?
(3) a * * * how many?
45. Choose a suitable condition, draw "",and then work it out.
(1) There are 18 pots of chrysanthemums on campus ... How many pots are there fewer orchids than chrysanthemums?
① Carry away 16 pots;
② There are 5 pots left;
③ Orchids 16 pots.
(2) Kindergarten buys 50 apples ... How many pears are there?
① Assign 12 children;
② Pears are less than apples12;
③ There are more pears than apples 12.
46. Connect the appropriate conditions with the questions first, and then answer them.
(1) There were 30 grey rabbits and 24 white rabbits.
How many people are there?
How many gray rabbits are there?
(2) There were some rabbits, and four of them escaped. 18.
How much is left?