9 + 7 =

(a)  

7 + 6 =

(a)  

4 + 1 =

(a)  

5 + 6 =

(a)  

2 + 4 =

(a)  

7 + 3 =

(a)  

1 + 8 =

(a)  

2 + 3 =

(a)  

5 + 7 =

(a)  

12 + 3 =

(a)  

14 + 3 =

(a)  

16 + 2 =

(a)  

11 + 5 =

(a)  

17 + 2 =

(a)