8 x (a)   = 64

12 x (a)   = 48

(a)   x 5 = 25

9 x (a)   = 81

(a)   x 11 = 99

4 x (a)   = 16

(a)   x 6 = 36

13 x (a)   = 65

(a)   x 12 = 144

10 x (a)   = 100

(a)   x 15 = 45

20 x (a)   = 40

(a)   x 22 = 88

3 x (a)   = 21

(a)   x 31 = 31

11 x (a)   = 77

(a)   x 2 = 2

21 x (a)   = 42

(a)   x 23 = 69

7 x (a)   = 28

(a)   x 8 = 40

22 x (a)   = 22

(a)   x 30 = 90

9 x (a)   = 9

(a)   x 32 = 64

6 x (a)   = 30

(a)   x 33 = 99

4 x (a)   = 8

(a)   x 40 = 80

50 x (a)   = 50

(a)   x 60 = 60

70 x (a)   = 140

(a)   x 80 = 80

90 x (a)   = 180

(a)   x 100 = 100

13 x (a)   = 52

(a)   x 14 = 56

12 x (a)   = 144

(a)   x 13 = 39

20 x (a)   = 60

(a)   x 25 = 50

6 x (a)   = 48

(a)   x 15 = 75

10 x (a)   = 30

(a)   x 22 = 66

31 x (a)   = 31

(a)   x 21 = 63

23 x (a)   = 23

(a)   x 16 = 48

56 ÷ (a)   = 8

(a)   ÷ 8 = 8

48 ÷ (a)   = 4

(a)   ÷ 5 = 5

81 ÷ (a)   = 9

(a)   ÷ 11 = 9

16 ÷ (a)   = 4

(a)   ÷ 6 = 6

65 ÷ (a)   = 13

(a)   ÷ 12 = 12

100 ÷ (a)   = 10

(a)   ÷ 15 = 3

40 ÷ (a)   = 20

(a)   ÷ 22 = 4

21 ÷ (a)   = 3

(a)   ÷ 31 = 1

77 ÷ (a)   = 11

(a)   ÷ 2 = 1

42 ÷ (a)   = 21

(a)   ÷ 23 = 3

28 ÷ (a)   = 7

(a)   ÷ 8 = 5

22 ÷ (a)   = 1

(a)   ÷ 30 = 3

9 ÷ (a)   = 9

(a)   ÷ 32 = 2

30 ÷ (a)   = 6

(a)   ÷ 33 = 3

8 ÷ (a)   = 4

(a)   ÷ 40 = 2

50 ÷ (a)   = 10

(a)   ÷ 60 = 1

140 ÷ (a)   = 70

(a)   ÷ 80 = 1

180 ÷ (a)   = 90

(a)   ÷ 100 = 1

52 ÷ (a)   = 13

(a)   ÷ 14 = 4

144 ÷ (a)   = 12

(a)   ÷ 13 = 3

60 ÷ (a)   = 20

(a)   ÷ 25 = 2

48 ÷ (a)   = 8

(a)   ÷ 15 = 5

30 ÷ (a)   = 10

(a)   ÷ 22 = 3

31 ÷ (a)   = 1

(a)   ÷ 21 = 3

23 ÷ (a)   = 1

(a)   ÷ 16 = 3

7 × (a)   = 56  

(a)   × 6 = 54          

9 × 9 = (a)             

(a)   × 8 = 64

6 × (a)   = 36         

5 × 5 = (a)              

(a)   × 4 = 20         

3 × (a)   = 27

8 × 7 = (a)             

(a)   × 2 = 18