1. 3 + 2³ 5 (4 — 7)
2. 3 + [ 6 (11+1-4)] ÷ 8 × 2
3.(18 ÷ 6 × 5) - 14 ÷ 7
4. 3 × (3 + 7) — 4² ÷ 2
5.(1⁴ × 2² + 3³) - 2⁵ ÷ 4
6. 127 — 2 (3 + 4)²
