Question

4. Calcula: • (– 4) X 5 X (– 3) =
• (– 2) X (– 2) X (– 2) X (–2) =
• (– 54) ÷ 6 =
• – {5 [4 + 2 X (3 – 1) – 6] + 12 ÷ 2} =
• – 3 X {– 6 [ 2 X (– 3 – 4 X (– 5 + 4) – 2 + 3) – 7 – 7] + 4 – 3} =
• {–34 ÷ [3 X (– 3 – 50 ÷ (– 6 – 4) – 12 + 3) – 7 + 11] + 5 – 1} ÷ 6 =