Question

a) (+40) : (–8) – (–30) : (+6)=
b) (–2) · (–9) + (–24) : (–3) – (– 6) · (– 4)=
c) (+27) : (6 – 9) – (11 – 8) · (–5) – (– 6) · (–2)=

Answer 1

a) (-5) - (-5) =(-5) + 5 = 0

b) (+18) + (+8) - (+24) = 18 + 8 - 24 = 26 - 24 = 2

c) (+27) : (-3) - (+3) (-5) - (+12) =  (-9) - (-15) - 12 = (-9) +15 - 12 = 6 - 12 =  (-6)