1. Students should make 10 lanterns. Eight lanterns have been made. How much more do they have to do?
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, I calculated 100 math problems in the morning and 2 1 math problems in the afternoon. How many more math problems did you work out in the morning than in the afternoon?
2. There are 72 female students and 0/8 male students in the library. 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?
4. School football 10, basketball 16. How much less is football than basketball?
There are 40 potted orchids and 60 potted chrysanthemums in the garden. How many potted orchids are planted as much as chrysanthemums?
6. 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?
7. Xiaohua made 20 envelopes, and Liang Xiao made 6 more than Xiaohua. How much did Liang Xiao do?
8. There are two bookshelves. There are 16 books on the first floor, 8 books on the second floor, and how many books are there on the second floor?
9. Mom bought 16 apples, and pears are 24 more than apples. How many pears did she buy?
10. There are 30 cocks in the feeding group, and 48 hens are more than cocks. How many hens are there?
1 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?
12. There are 28 female students in the choir. There are four fewer boys than girls. How many male students are there?
13, there are 32 white sheep in Xiaohua, and there are fewer black sheep than white sheep 12. How many black sheep have you raised?
14, the students took part in the labor and picked 40 baskets of cucumbers. The white melons were picked less than the cucumbers. 18, how many baskets of white melons are there?
15, Xiaoming took the ball, 35 times for the first time, 7 times less than the first time, and how many times for the second time?
16, Xiaoying made 30 red stars, and made 12 yellow stars less than red stars. How many yellow stars?
17, the school bought back 37 boxes of white chalk and 8 boxes of colored chalk. How many boxes of chalk did you buy back?
18, the school bought back 45 boxes of white and colored chalk, including 8 boxes of colored chalk. How many boxes of white chalk did you buy back?
19, 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?
20. The school bought 8 boxes of colored chalk, and white chalk bought 29 boxes more than colored chalk. How many boxes of white chalk?