Sagot :

Bonsoir,

4+(-3) = 1

-2+(-7) = -9

-5+4 =  -1

3 +(-4) = -1

-2+2 = 0

7+2 =9

-5 +(-3) = -8

-2 +(-4) =  -6

4+7 = 11

-7 +3=  -4