Question

Calcule:
a) – 8 – 3 – 2 – 0 =
b) – 150 + 80 + 30 – 120 =
c) – 230 – 500 + 600 + 700 =
d) – 12 + 15 – 1 – 2 =
e) – 1200 + 1500 + 3000 – 727 =

Answer 1

Explicação passo-a-passo:

a) – 8 – 3 – 2 – 0 =

11 – 2 – 0

13 – 0

= – 13

_______________

b) – 150 + 80 + 30 – 120 =

– 70 + 30 – 120

– 40 – 120

= – 160

_______________

c) – 230 – 500 + 600 + 700 =

– 730 + 600 + 700

– 130 + 700

= 570

_______________

d) – 12 + 15 – 1 – 2 =

3 – 1 – 2

2 – 2

= 0

________________

e) – 1200 + 1500 + 3000 – 727 =

300 + 3000 – 727

3300 – 727

= 2573