Show:
Multiplying by 3
(Hint: How do we split up 3?)
Multiplying by 4
Multiplying by 6
(Hint: How do we split up 6?)
Multiplying by 7
(Hint: How do we split up 7?)
Multiplying by 8
100

3 x 2

6

100

4 x 2

8

100

6 x 2

12

100

7 x 2

14

100

8 x 2

16

200

3 x 5

15

200

4 x 5

20

200

6 x 5

30

200

7 x 5

35

200

8 x 5

40

300

3 x 3

9

300

4 x 4

16

300

6 x 6

36

300

7 x 7

49

300

8 x 8

64

400

3 x 6

18

400

4 x 7

28

400

6 x 9

54

400

7 x 8

56

400

8 x 6

48

500

3 x 8

24

500

4 x 6

24

500

6 x 7

42

500

7 x 9

63

500

8 x 7

56