Question

Calcule A)(-7)-(+7)= B)(-7)-(-7)= C)(-5)-(-13)= D)(+10)-(-30)=

Answer 1

A) (-7)-(+7)=  -7 - 7 = -14

B) (-7)-(-7)=  -7 + 7 = 0

C) (-5)-(-13)= -5+13 = 8

D) (+10)-(-30)= 10+30= 40