Question

43+(-12)=
-52-(-13)=
-5+(-79)=
-11-51=
Помогите пожалуйста.

Answer 1

43-12=31
52-13=39
4-79=-75
11-51=-40

Answer 2

43+(-12)= 43-12=31
-52-(-13)= -52+13=13-52= -39
-5+(-79)= -(5+79)= -84
-11-51= -(11+51)= -62