Question

1) Calcule:
a) – 8 + 6 – 1 e) (+8) – (+5) i) – 13 + 7 – 2– 8 + 15 – 1
b) – 2 – 4 – 1 f) (– 8) + (– 5) j) + 22 – 3 – 14 – 5 + 24 + 12
c) 12 – 7 + 3 g) (– 3) + (+ 9)
d) 4 + 13 – 21 h) (+ 2) + (– 7)

Answer 1

Resposta:Resposta:

a)-8 + 6-1 = - 3

b) (+8) -(+5) = - 13

c)-13 +7-2-8 + 15-1 = - 2

d)-2-4-1 = - 7

e) (-8) + (-5) = - 13

f) 22-3-14 – 5 + 24 + 12 = +36

g) 12-7 + 3 = +8

h) (-3) + (+9) = +6

i) (-2)-(-3) + (+5) = +6

j) 4 + 13-21 = - 4

k) (+ 2) + (-7) = - 5

L) (+6) + (-7) -(-2)​ = +1

Explicação passo-a-passo: