Question

Dê o resultado das seguintes adições:

a) (+13) + (+27) + (–28)

b) (–50) + (–12) + (–30)

c) (+90) + (–75) + (–5)​

Answer 1

Resposta:

a) (+13) + (+27) + (–28) = +12

b) (–50) + (–12) + (–30) = -92

c) (+90) + (–75) + (–5) = +10