Year 8 Square and Cube Numbers Worksheet — Level 2 — Practice Set 3 — 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 2 — Practice Set 3 — Answers
A square number is a number times itself; a cube number is a number times itself three times.
1.102 = (answer space)
Answer: 100
- 10 × 10 = 100
2.√81 = (answer space)
Answer: 9
- 9 × 9 = 81
3.16 is a square number.
Answer: True
4 × 4 = 16
4.63 = (answer space)
Answer: 216
- 6 × 6 × 6 = 216
5.The cube root of 1 is (answer space).
Answer: 1
- 1 × 1 × 1 = 1
6.23 is a cube number.
Answer: False
23 is not a whole number cubed.
7.92 = (answer space)
Answer: 81
- 9 × 9 = 81
8.√169 = (answer space)
Answer: 13
- 13 × 13 = 169
9.39 is a square number.
Answer: False
62 = 36 and 72 = 49, so 39 is not a square number.
10.43 = (answer space)
Answer: 64
- 4 × 4 × 4 = 64
11.The cube root of 125 is (answer space).
Answer: 5
- 5 × 5 × 5 = 125
12.77 is a cube number.
Answer: False
77 is not a whole number cubed.
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.