Question

1- Calcule as adições:
a) (+2) + (+6) =
b) (-5) + (-4) =
c)(-5) + (+3) =
d) (-7)+(+2) =​

Answer 1

a) 2 + 6 = 8

b) -5 - 4 = - 9

c) -5 + 3 = - 2

d) -7 + 2 = -5