Question

Calcule em seu caderno e responda aqui

Answer 1

Resposta:

a)11

b)-15

c)-11

d)-2

e)0

f)-10

g)21

h)-24

Answer 2

Explicação passo-a-passo:

a) 31 + (–40) ÷ (+2) =‬  

  31 + (–20) = 11

b) – 10 – 20 ÷ 4 =‬

   – 10 – 5 = – 15

c) (+30) ÷ (– 6) + (–18) ÷ (+3) =

   (– 5) + (– 6) = – 11

d) 7 ÷ (–7) + 2 · (–6) + 11 =

   – 1 + (– 12) + 11=

   – 13 + 11 = – 2

e) (–36) ÷ (– 4) + 3 · (–3) =

    9 + (–9) = 0

f) 35 – 6 · (+6) + (+54) ÷ (–6) =

   35 – (+36) + (–9) =

  – 1 + (–9) = –10

g) 2 + (–75) ÷ (–5) – 4 · (–1) =

   2 + (+15) – (–4) =

   17 – (–4) = 21

h) 4 · (–20) – (–120) ÷ (+2) + 28 ÷ (–7) =

    (–80) – (–60) + (–4) =  

    (–20) + (–4) = –24