Unit 10 : Double and half

Double

2 x 4 = 8 is .....

• 8 x 4 = 32

• 4 x 8 = 32

• 4 x 4 = 16

• 4 x 2 = 8

Double

3 x 2 = 6 is .....

• 6 x 2 = 12

• 2 x 3 = 6

• 6 x 3 = 18

• 6 x 4 = 24

Double

5 x 3 = 15 is .....

• 15 x 3 = 45

• 10 x 3 = 30

• 3 x 5 = 15

• 5 x 2 = 10

Double

1 x 7 = 7 is .....

• 2 x 10 = 20

• 7 x 7 = 49

• 7 x 1 = 7

• 2 x 7 = 14

Double

3 x 3 = 9 is .....

• 2 x 3 = 6

• 6 x 3 = 18

• 9 x 3 = 27

• 9 x 9 = 81

Half

10 x 2 = 20 is ...

• 5 x 1 = 5

• 10 x 1 = 10

• 5 x 1 = 5

• 5 x 2 = 10

Half

8 x 2 = 16 is ...

• 4 x 1 = 4

• 8 x 4 = 32

• 4 x 2 = 8

• 2 x 8 = 16

Half

8 x 3 = 24 is ...

• 8 x 3 = 24

• 4 x 2 = 8

• 4 x 3 = 12

• 3 x 8 = 24

Half

8 x 5 = 40 is ...

• 4 x 10 = 40

• 4 x 5 = 20

• 5 x 8 = 40

• 4 x 5 = 9

Half

4 x 6 = 24 is ...

• 2 x 6 = 12

• 6 x 4 = 24

• 2 x 3 = 6

• 6 x 4 = 10