Question

1) Calcule as seguintes expressões:
a) -14 + 42:3
b) 40:(-2) +9
c)(-12):3 + 6
d)(-54):(-9) + 2
e) 20 + (10).(-5)​

Answer 1

Resposta:

a) -14 + 42 ÷ 3 =

-14 + 14 = 0

b) 40 ÷ (-2) + 9 =

-20 + 9 = -11

c) (-12) ÷ 3 + 6 =

-4 + 6 = 2

d) (-54) ÷ (-9) + 2 =

6 + 2 = 8

e) 20 + (10) × (-5) =

20 + (-50) =

20 - 50 = -30