Question

2. Efetue as operações com números inteiros: a) (-25) – (23)= c) ( –20) ÷ ( –25)= b) (–13) –( – 10)= d) ( –10) ÷ (6)=

Answer 1

Resposta:

Explicação passo a 2opasso:

Answer 2

Resposta:

a) 5 – (– 3) = b) 6 – (+ 2) = c) 11 – (+ 11) = d) – 2 – (– 5) = e) –1 – (+ 3) = f) (+ 20) – (– 30) = g) ( – 10) – (+ 13) = h) 45 – (+ 15) = i) 25 – (– 5) =.

Explicação passo-a-passo:

(–8) + (–2) + (–7)

– 8 – 2 – 7

– 17

(+81) + (–12) – (+ 7)

+ 81 – 12 – 7

+ 81 – 19

+ 62