Question

1) RESOVA AS EXPRESSÕES:
a) 15 -(3-2) + (7-4) =
b) -8 - [-2 - (-12)+3 ] =
d) 25 - {-2 + [6+ (-4-1)]) =
c) 25 -(8-5+3) - ( 12 - 5 - 8) =​

Answer 1

Explicação passo-a-passo:

a) 15-(1)+3=

15-1+3=

17

b)-8-[-2+12+3]

-8-[13]

-8-13=

-21

c)25-{-2+[6-5]}

25-{-2+1}

25+1=26

d)25-6+1=20