Question

Determine o valor das expressões numéricas abaixo:

a) (– 4 – 1) × (– 9 + 6) – (– 15 + 3) : (–1 – 5) =

b) (–8 – 10) : (9) – (– 7 + 6) . (– 2 ) – 52 =

c) 30 – 82 : (– 2) + (– 54) : (– 1 – 2)–102 =

d) (– 81) ÷ ( + 9) – (– 11 + 3) × ( +1) – (– 162) : (18) =

Answer 1

A) (-4-1).(-9+6)-(-15+3):(-1-5)=
-5.(-3)-(-12):(-6)=
15-2=
13

Answer 2

a) (-5) x (-3) - (-12) / (-6) = 15 - 2 = 13

b) (-18) / 9 - (-1) x (-2) - 52 = -2 - (2) -52 = -56

c) 30 - 82 / (-2) + (-54) / (-1 -2) - 102 = -30 +41 +18 -102 =  -73

d) -81 / 9 - (-11 + 3) x 1 - ( -162) / 18  = -9 + 8 + 9 = 8