Question

08. Calcule as expressões
a) 15-(-2) + (-3) -(-3) - (-8) +(-5) + (-2) =
b) 50 + (+10) - (-15) + (-15)-(-10) - (-15) - (- 10) =
c) 25+ (15 - 50) + (-20 - 10) =
d) -15 +{+ 3-[2-(-7 + 10)]}=
e) 60 - (+4).(-8) =
h) (-9-3).(9-3) =
i) ( + 10).(- 12).( + 1).(-3).(+2)
j) 40 : (-2) + 9 =
k) (-16):4.(-4) =​

Answer 1

A )18

B) 95

C) 40

D) 19

E )64