Question

a) (+5) – (+3) =
b) (–10) – (–7) =
c) (–2) – (–15) – (+3) =
d) 7 – (–10) – (+6) =
e) –17 – (+10) – (–25) – (+18) =

Answer 1

Resposta:

Explicação passo-a-passo:

A) (+5) – (+3) =

= 5 - 3

= 2

b) (–10) – (–7) =

= - 10+7

= - 3

c) (–2) – (–15) – (+3) =

= - 2+15 - 3

= 13 - 3

= 10

d) 7 – (–10) – (+6) =

= 7+10-6

= 17-6

= 11

e) –17 – (+10) – (–25) – (+18) =

= - 17 - 10 + 25 - 18

= - 27 + 7

= - 20