Question

Elimine os parênteses

Answer 1

a) -3 + 8 = 5
b) +3 + 8 = 11
c) +5 - 6 = 1
d) +3 - 1 = 2
e) +6 + 4 -1 = 9
f) -3 -2 -1 = -6
g) -4 -6 +8 = -2
h) +2 +5 -1 = 6