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1. 5 + 7 = ? 2. 12 - 3 = ? 3. 8 × 4 = ? 4. 25 ÷ 5 = ? 5. 6 + 8 + 9 = ? 6. 20 - 10 + 5 = ? 7. 7 × 7 = ? 8. 16 ÷ 2 = ? 9. 9 + 6 - 3 = ? 10. 14 × 2 = ?