Question

24. Calcule as expressões:
a) (-15 + 4) + (-18 + (-3-7 +5)]
c) -1 +(-2+5)+(- 4 + (-6 + 5-8)]
b) -1 + (1 + (1 - 1) -11
d) - 4 + 5 -5 + 4- 3 + 9 + 3​

Answer 1

Resposta:

a)-34

c)-11

b)9

c)9

Explicação passo-a-passo:

a)(-15 + 4) + (-18 + ( -3 -7 +5)

-11+(-18+(-10+5)

-11+(-18+-5)

-11+(-18-5)

-11+-23

-11-23

-34

c)-1+(-2+5)+(-4+(-6+5-8))

-1++3+(-4+(-1-8))

-1+3+(-4+-9)

-1+3+(-4-9)

-1+3+-13

-1+3-13

+2-13

-11

b)-1+(1+(1-1)-11)

-1+(1+0-11)

-1+(1-11)

-1+10

9

d)-4+5-5+4-3+9+3

1-5+4-3+9+3

-4+4-3+9+3

0-3+9+3

-3+9+3

+3+3

9