Question

Resolva a) +20+12+1= b)-8-15-7= c)+25-13-14+12= d)-6-4+7-8-12+15+25= e)+15-10+20-8-16+8=​

Answer 1

Explicação passo-a-passo:

a)

+20+12+1

+32+1

33

b)

-8-15-7

-23-7

-30

c)

+25-13-14+12

+12 -2

+10

d)

-6-4+7-8-12+15+25

-10-1+3+25

-11+28

+17

e)

+15-10+20-8-16+8

+5+12-8

+17-8

+9