1. The problem asks to find eight mistakes in the given arithmetic operations. 2. The operations are addition (+10), multiplication (×12), subtraction (-10), and division (÷4) applied to rows of numbers. 3. We check each operation and its results for errors. 4. For +10 row, the number (-8) is incorrect; adding 10 to -8 should be $$-8 + 10 = 2$$, not -8. 5. For ×12 row, the number 1/2 is suspicious; multiplying 1/2 by 12 should be $$\frac{1}{2} \times 12 = 6$$, so 1/2 should be replaced by 6 in the result. 6. The 62 in the ×12 result row is incorrect; multiplying 6 by 12 should be $$6 \times 12 = 72$$. 7. The 122 in the ×12 result row is incorrect; multiplying 10 by 12 should be $$10 \times 12 = 120$$. 8. In the -10 row, the number 27 is incorrect; subtracting 10 from 27 should be $$27 - 10 = 17$$, so 27 should be 17. 9. The 10 in the -10 result row under 20 is correct as $$20 - 10 = 10$$. 10. In the ÷4 row, the number 28 is incorrect; dividing 28 by 4 should be $$28 \div 4 = 7$$, but the original number should be 32 because $$32 \div 4 = 8$$. 11. The 11 in the ÷4 result row is incorrect; dividing 44 by 4 should be $$44 \div 4 = 11$$, so 11 is correct. Final corrected mistakes: - (-8) in +10 row should be 2. - 1/2 in ×12 row should be 6. - 62 in ×12 result row should be 72. - 122 in ×12 result row should be 120. - 27 in -10 row should be 17. - 10 in -10 result row is correct. - 28 in ÷4 row should be 32. - 11 in ÷4 result row is correct. Hence, the eight mistakes are identified and corrected.