2, a pair of slippers 8 yuan, a pair of socks 4 yuan. Xiaoming bought a pair of slippers and socks with money from 20 yuan. How much should he get back?
There are 96 story books in the library, 28 in the first week and 30 in the second week. How many books are there now?
4. There are 35 dragonflies and butterflies in the flowers, 6 of them fly away, and 12 comes. How many dragonflies and butterflies are there in the flowers now?
There are 35 trucks and 24 cars in the parking lot. 17 The car has already left. How many cars are there now?
6. Xiaoming made 18 green flag and 32 red flag. Give kindergarten 14 noodles. How many noodles does Xiaoming have now?
7. The baker made 54 loaves, Xiaoming bought 19 loaves and Xiaohong bought 25 loaves. How much more can you buy?
8. Team Three caught 42 bugs, Team One caught 18 and Team Two caught 16. How many bugs did team three catch?
There are 46 passengers on the bus. At the station, 19 people get off and 15 people get on. How many people are there in the car now?
10 class and 2 (2) class 5 1 person, 25 people jump rope, 8 people racket ball. The rest play football. How many people play football?
1 1. There are 73 trees, 26 apple trees and 38 apricot trees in the orchard. The rest are peach trees. How many peach trees are there?
12, there are 45 people doing exercises, including 3 rows of girls with 6 people in each row. How many boys are there?
13. Mom bought 6 bags of apples, each with 8 apples. I bought 27 pears. How much fruit did mom buy?
14, Xiaoming has 50 yuan pocket money. He bought three books, each 9 yuan. How much money does he have left
15, the rabbit pulled out three piles of radishes, 9 in each pile, and there were 18 radishes in the field. How many radishes did the rabbit grow?