Question

1. Efetue as adições
a) (+2) + (+3) =

b) (+1) + (+8) =

c) (+3) + (+11) =

d) (-1) + (-2) =

g) (+7) + (+2) + (+5) =

h) (+4) + (+1) + (+8) =

i) (+3) + (+8) + (+15) =

j) (-8) + (-1) + (-2) =

​

Answer 1

Resposta:

a) (+2) + (+3) = 5

b) (+1) + (+8) = 9

c) (+3) + (+11) = 14

d) (-1) + (-2) = -3

g) (+7) + (+2) + (+5) = 14

h) (+4) + (+1) + (+8) = 13

i) (+3) + (+8) + (+15) = 26

j) (-8) + (-1) + (-2) = -11