Question

calcule

a) (+8)+(-7)=
b) (+2)-(+5)=
c) (-3)+(-6)=
d) (+10)-(-20)=
e) (-4)+(-8)=
f)(-7)-(-3)=​

Answer 1

Resposta:

A) 1

B) -3

C) -9

D) 30

E) -12

F) -4