MENTAL COMPUTATION

MULTIPLICATIONand DIVISION

1

Double 12

2

Double 50

3

Double 33

4

Double 66

5

Double 45

6

2 x 18 =

7

2 x 100 =

8

120 x 2 =

9

2 x 350 =

10

500 x 2 =

11

2 x 75 =

12

2 x 80 =

13

2 x 84 =

14

4 x 23 =

15

4 x 36 =

16

5 x 70 =

17

10 x 70 =

18

10 x 78 =

19

100 x 18 =

20

Halve 24

21

Halve 16

22

Halve 48

23

Halve 500

24

Halve 160

25

86 ÷ 2 =

26

92 ÷ 2 =

27

78 ÷ 2 =

28

340 ÷ 2 =

29

400 ÷ 2 =

30

270 ÷ 10 =