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1. 8 + 5 × 3 = ? 2. 50 - 12 ÷ 2 = ? 3. 7 × 6 ÷ 3 + 4 = ? 4. 21 ÷ (3 - 1) = ? 5. 14 + 9 - 5 × 2 = ? 6. 2^3 × 4 ÷ 2 = ? 7. 17 - 8 ÷ (4 - 1) = ? 8. 6 × (5 + 2) - 3 = ? 9. 18 ÷ 2 + 9 - 5 =