14 - 8 =

(a)  

17 - 7 =

(a)  

22 - 6 =

(a)  

25 - 5 =

(a)  

27 - 6 =

(a)  

30 - 7 =

(a)  

33 - 8 =

(a)  

35 - 9 =

(a)  

37 - 8 =

(a)  

42 - 7 =

(a)  

44 - 6 =

(a)  

47 - 5 =

(a)  

52 - 6 =

(a)  

54 - 7 =

(a)  

55 - 8 =

(a)  

57 - 9 =

(a)  

60 - 5 =

(a)  

63 - 6 =

(a)  

67 - 7 =

(a)