Year 8 Order of Operations (BODMAS) Worksheet — Level 3 — Practice Set 2 — Answers
Answer sheet with worked solutions for the Year 8 order of operations worksheet.
Year 8 Order of Operations (BODMAS) Worksheet — Level 3 — Practice Set 2 — Answers
Brackets, then Orders (indices), then Division/Multiplication (left to right), then Addition/Subtraction (left to right).
1.92 + 5 × (3 − 4)
Answer: 76
- Brackets: 3 − 4 = (−1)
- Index: 92 = 81
- Multiply: 5 × (−1) = (−5)
- 81 − 5 = 76
2.8 × 2 − 3 × 3
Answer: 7
- 8 × 2 = 16 and 3 × 3 = 9
- 16 − 9 = 7
3.(4 + 9)2 ÷ 13
Answer: 13
- Brackets: 4 + 9 = 13
- Index: 132 = 169
- 169 ÷ 13 = 13
4.2 × 7 − 9 × 3
Answer: −13
- 2 × 7 = 14 and 9 × 3 = 27
- 14 − 27 = −13
5.4 × 9 − 8 × 5
Answer: −4
- 4 × 9 = 36 and 8 × 5 = 40
- 36 − 40 = −4
6.32 + 5 × (4 − 4)
Answer: 9
- Brackets: 4 − 4 = 0
- Index: 32 = 9
- Multiply: 5 × 0 = 0
- 9 + 0 = 9
7.4 × 6 − 8 × 3
Answer: 0
- 4 × 6 = 24 and 8 × 3 = 24
- 24 − 24 = 0
8.8 × 7 − 9 × 2
Answer: 38
- 8 × 7 = 56 and 9 × 2 = 18
- 56 − 18 = 38
9.8 × 7 − 3 × 4
Answer: 44
- 8 × 7 = 56 and 3 × 4 = 12
- 56 − 12 = 44
10.22 + 2 × (3 − 2)
Answer: 6
- Brackets: 3 − 2 = 1
- Index: 22 = 4
- Multiply: 2 × 1 = 2
- 4 + 2 = 6
11.9 × 7 − 8 × 3
Answer: 39
- 9 × 7 = 63 and 8 × 3 = 24
- 63 − 24 = 39
12.79 − 21 ÷ 3
Answer: 72
- Divide first: 21 ÷ 3 = 7
- 79 − 7 = 72
Marking tips
- Give credit for correct method even when the final answer slips — the working shows where the thinking went right.
- For open-ended tasks, use the success criteria as a checklist rather than looking for one "right" answer.
- Celebrate what went well first, then pick one thing to work on next.
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