Question

Calcule as seguintes expressões:

a) -20+125+45-30-10

b) 222-31+152-678+183+15

c) -30+180-110+160-200

d) -10+20-30+40-50+60

Answer 1

Resposta:

$- 20 + 125 + 45 - 30 - 10 = 110$

$222 - 31 + 152 - 678 + 183 + 15 = 137$

$- 30 + 180 - 110 + 160 - 200 = 60$

$- 10 + 20 - 30 + 40 - 50 + 60 = 30$