Show:
A
B
C
1

15 + 7 =

22

1

3 x 3 =

9

1

53 - 3 =

50

2

25 + 10 =

35

2

21 - 3 =

18

2

4 x 3 =

12

3

78 - 5 =

73

3

5 x 2 =

10

3

17 + 8 = 

25

4

32 + 15 =

47

4

42 + 7 =

49

4

36 + 4 =

40

5

84 + 3 =

87

5

69 - 24 =

45

5

59 - 15 =

44