Show:
Multiplying by 8
Multiplying by 9
Multiplying by 10
Multiplying by 11
Multiplying by 12
100

8x8

64

100

9x3

27

100

10x2

20

100

11x3

33

100

12x3

36

200

9x8

72

200

9x5

45

200

10x4

40

200

11x5

55

200

12x5

60

300

7x8

56

300

9x7

63

300

10x6

60

300

11x7

77

300

12x7

84

400

8x6

48

400

9x9

81

400

10x8

80

400

11x9

99

400

12x9

108

500

8x5

40

500

9x12

108

500

10x10

100

500

11x11

121

500

12x11

132