40

42 – 6 =

36 42

6

36

24

50

54 – 8 =

46 54

8

46

44

38 – 7 =

31 38

7

31

40

45 – 9 =

36 45

9

36

54

60

68 – 9 =

59 68

9

59

81

50

53 – 7 =

46 53

7

46

34