Grade 8 Math: Order of operations

1. 1.D) 223Multiply first: 17 × 14 = 238, then subtract 15.
2. 2.A) 260Innermost brackets first: 13 − 8 = 5, then add 15, then multiply by 13.
3. 3.D) 61Square first: 4² = 16, then multiply 5 × 9 = 45.
4. 4.D) AdditionWork inside the brackets first.
5. 5.A) 952Multiply both pairs first: 14 × 18 = 252 and 35 × 20 = 700, then add.
6. 6.D) 35Innermost brackets first: 8 − 5 = 3, then add 2, then multiply by 7.
7. 7.B) 214Square first: 4² = 16, then multiply 18 × 11 = 198.
8. 8.B) 8 + 5 × 10The product 5 × 10 = 50, so the value is 58.
9. 9.D) 49Multiply first: 5 × 7 = 35, then add 14.
10. 10.A) 144Innermost brackets first: 12 − 3 = 9, then add 7, then multiply by 9.

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