Year 8 Square and Cube Numbers Worksheet — Level 3 — 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 3 — Practice Set 3 — Answers
A square number is a number times itself; a cube number is a number times itself three times.
1.42 = (answer space)
Answer: 16
- 4 × 4 = 16
2.√25 = (answer space)
Answer: 5
- 5 × 5 = 25
3.53 is a square number.
Answer: False
72 = 49 and 82 = 64, so 53 is not a square number.
4.33 = (answer space)
Answer: 27
- 3 × 3 × 3 = 27
5.The cube root of 8 is (answer space).
Answer: 2
- 2 × 2 × 2 = 8
6.125 is a cube number.
Answer: True
5 × 5 × 5 = 125
7.√8 lies between the whole numbers (answer space) and (answer space).
Answer: 2, 3
- 22 = 4 and 32 = 9
- 4 < 8 < 9
8.62 + 52 = (answer space)
Answer: 61
- 36 + 25 = 61
9.82 = (answer space)
Answer: 64
- 8 × 8 = 64
10.√361 = (answer space)
Answer: 19
- 19 × 19 = 361
11.121 is a square number.
Answer: True
11 × 11 = 121
12.13 = (answer space)
Answer: 1
- 1 × 1 × 1 = 1
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.