Show:
Multiply by 3 (A)
Multiply by 3 (B)
Multiply by 4 (A)
Multiply by 4 (B)
100

3x1

3

100

3x6

18

100

4x1

4

100

4x6

24

200

3x2

6

200

3x10

30

200

4x2

8

200

4x10

40

300

3x3

9

300

3x9

27

300

4x3

12

300

4x9

36

400

3x4

12

400

3x7

21

400

4x4

16

400

4x7

28

500

3x5

15

500

3x8

24

500

4x5

20

500

4x8

32