1. Divide 10 into 5 parts, each part is ().

List formulas: ()? ( )=( ).

2.24? 4= () is pronounced as: () divided by (), which means to divide () into () parts on average, and each part is ().

That is, there is () () in ().

6. 15? 5=3 is to divide () into () parts, and each part is ().

8.4? 5=20

20? 5=4 Think: (4) Fifty or twenty, and the quotient is 4.

20? 4= () Think: 4 () 20, and the quotient is ().

9. 12? 2= () Think: two () twelve, and the quotient is ().

12? 6= () Think: () Sixty-two, quotient is ().

24? 4= () Think: 4 () 24, and the quotient is ().

24? 6= () thinks: () 624, quotient is ().

10. Fill in ()? & gt？ 、? & lt？ Or? =? .

5 ○ 20? 5 30? 6○ 6 40○6? five

12? 3 ○ 5 6○36? 6 20 ○4? five

Second, the oral calculation:

4? 2= 4? 3=5? 2= 8? 2= 12? 3= 10? 5=

8? 4= 12? 4= 10? 2= 3? 3= 4? 2=8? 4=

12? 6= 12? 2= 12? 4= 9? 9= 6? 3= 10? 2=

12? 3= 9? 3= 6? 6= 24? 6= 30? 5= 16? 4=

3? 4= 5? 5=6? 6= 12? 4= 25? 5= 36? 6=

3? 2= 2? 5= 3? 4= 6? 2= 10? 2= 12? 3=

6? 3= 10? 5= 12? 4= 5? 3= 5? 6= 6? 4=

15? 3= 30? 6= 24? 4= 15? 5= 30? 5= 24? 6=

Third, column calculation.

(1) How many 4s are there in 24?

(2) The dividend is 15 and the divisor is 3. What is the quotient?

(3) What is18 divided by 6?

(4) Divide 20 into 4 parts on average. How much is each part?

Fourth, solve the problem:

1. The central shopping mall sold 42 washing machines on the first day, six times as many as the next day. How many units were sold the next day?

2. Put 12 flowers in two vases respectively. How many flowers are inserted in each vase on average?

Ceng Laoshi bought three tubes of badminton. * * * Yes 18 badminton. How many badminton are there in each tube?

4. Put 16 goldfish into the goldfish bowl respectively, with 4 goldfish in each tank. How many should I put in the goldfish bowl?

5. There are 3 boxes of balls, 4 in each box. How many are there in a * * *?

6. 15 yuan can buy five cars. How much does each car cost?

7. The store sold 9 boxes of ping-pong balls in the morning, each containing 6. How many ping-pong balls did it sell?

8. Uncle Chen has four cocks, and the number of hens is nine times that of cocks. How many chickens does Uncle Chen keep?

9.8 students made flowers, each made 5 flowers, and sent 18 flowers to kindergarten children. How many flowers are left?

Five, primary school mathematics intelligent surfing:

(1) ○, △, ☆ What numbers respectively stand for?

○+○+○= 18

△+○= 14 ○=( ) △=( ) ☆=( )

☆+☆+☆+☆=20

(2)○+○+○=9 △+△+○+○+○= 17

△=( )○=( )