Year 8 Square and Cube Numbers Worksheet — Level 3 — Practice Set 2 — Answers
Answer sheet with worked solutions for the Year 8 factors, multiples & primes worksheet.
Success TutoringWorksheetsAnswer sheetYear 8 · Mathematics · Factors, Multiples & PrimesYear 8 Square and Cube Numbers Worksheet — Level 3 — Practice Set 2 — Answers
A square number is a number times itself; a cube number is a number times itself three times.
1.182 = (answer space)
Answer: 324
- 18 × 18 = 324
2.√16 = (answer space)
Answer: 4
- 4 × 4 = 16
3.29 is a square number.
Answer: False
52 = 25 and 62 = 36, so 29 is not a square number.
4.83 = (answer space)
Answer: 512
- 8 × 8 × 8 = 512
5.The cube root of 343 is (answer space).
Answer: 7
- 7 × 7 × 7 = 343
6.54 is a cube number.
Answer: False
54 is not a whole number cubed.
7.√266 lies between the whole numbers (answer space) and (answer space).
Answer: 16, 17
- 162 = 256 and 172 = 289
- 256 < 266 < 289
8.72 + 52 = (answer space)
Answer: 74
- 49 + 25 = 74
9.72 = (answer space)
Answer: 49
- 7 × 7 = 49
10.√400 = (answer space)
Answer: 20
- 20 × 20 = 400
11.9 is a square number.
Answer: True
3 × 3 = 9
12.43 = (answer space)
Answer: 64
- 4 × 4 × 4 = 64
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.