Question

Retire os parênteses e calcule o resultado:

a) (+ 6) + (– 1) + (– 5) + (– 3) =

b) (– 10) – (– 2) – (+ 4) – (– 1) =

c) (– 4) – (+ 2) – (– 1) + (– 5) =

d) (+ 3) – (– 2) + (– 9) + (– 5) =

e) (– 10) – (– 2) + (+ 4) – (+ 8) + (+ 1) =

f) 20 + (– 7) + (+ 2) – (+ 4) – (– 1) + (– 5) =

g) 15 – (– 2) + (– 3) – (– 3) – (– 8) + (– 5) + (– 2) =

h) 50 + (+ 10) – (– 15) + (– 15) – (– 10) – (– 15) – (– 10) =

i) – (12 – 4 + 2) = – 12 + 4 – 2 = – 10

j) – (– 11 + 1 – 5) = + 11 – 1 + 5 = 15

k) 100 – (25 – 10 + 5) =

l) 200 + (– 30 + 70 + 40 – 20) =

m) 40 – (– 30 + 10) – (– 5 + 10 + 15) =

n) 25 + (15 – 50) + (– 20 – 10) =​

Answer 1

usa a calculadora

Explicação passo-a-passo:

e só tirar os parentes