7 + (-2) =

(a)  

5 + (-9) =

(a)  

-5 + 8 =

(a)  

-9 + 6 =

(a)  

-6 + (-4) =

(a)  

24 + (-14) =

(a)  

9 + (-17) =

(a)  

18 + (-27) =

(a)  

-7 + (-12) =

(a)