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Kimliahannago
Respondido

1)resolva as seguintes expressões

a)+15-16+3-(7-2)

b)-4-12+8-6+10

c)+13-18+2-5+(15-9)

d)+7-3+9

e)-20+18+(7-9)

f)(+12-9)-9+4

g)-9+10-2​

Resposta :

Red2006go

Resposta:

a)+15-16+3-(7-2)

+15 - 16 + 3 - 5

-1 -2

-3

b)-4-12+8-6+10

-16 +2 + 10

14 +10

24

c)+13-18+2-5+(15-9)

+13 - 18 + 2 - 5 + 6

-5 + -3 + 6

-8 + 6

-2

d)+7-3+9

4+9

13

e)-20+18+(7-9)

-20 +18 + -2

-2 + -2

-4

f)(+12-9)-9+4

3 - 9+4

10

g)-9+10-2

1-2

-1

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