Question

Calcule o valor das seguintes expressões: 2 + 8 – 3 – 5 + 15 = 12 + [35 – (10 + 2) +2] = [(18 + 3 · 2) ÷ 8 + 5 · 3] ÷ 6 = 37 + [– 25 – (– 11 + 19 – 4)] = 60 ÷ {2 · [– 7 + 18 ÷ (– 3 + 12)]} – [7 · (– 3) – 18 ÷ (– 2) + 1] = – 8 + {– 5 + [(8 – 12) + (13 + 12)] – 10} = 3 – {2 + (11 – 15) – [5 + (– 3 + 1)] + 8} = [– 1 + (22 – 5 · 6)] ÷ (– 5 + 2) + 1 =

Answer 1

2 + 8 – 3 – 5 + 15 = 12 + [35 – (10 + 2) +2] = [(18 + 3 · 2) ÷ 8 + 5 · 3] ÷ 6 = 37 + [– 25 – (– 11 + 19 – 4)] = 60 ÷ {2 · [– 7 + 18 ÷ (– 3 + 12)]} – [7 · (– 3) – 18 ÷ (– 2) + 1] = – 8 + {– 5 + [(8 – 12) + (13 + 12)] – 10} = 3 – {2 + (11 – 15) – [5 + (– 3 + 1)] + 8} = [– 1 + (22 – 5 · 6)] ÷ (– 5 + 2) + 1 =39