Year 5 Square and Cube Numbers Worksheet — Level 1 — Practice Set 3 — Answers
Answer sheet with worked solutions for the Year 5 factors, multiples & primes worksheet.
Success TutoringWorksheetsAnswer sheetYear 5 · Mathematics · Factors, Multiples & PrimesYear 5 Square and Cube Numbers Worksheet — Level 1 — Practice Set 3 — Answers
A square number is a number times itself; a cube number is a number times itself three times.
1.82 = (answer space)
Answer: 64
- 8 × 8 = 64
2.√64 = (answer space)
Answer: 8
- 8 × 8 = 64
3.121 is a square number.
Answer: True
11 × 11 = 121
4.32 = (answer space)
Answer: 9
- 3 × 3 = 9
5.√9 = (answer space)
Answer: 3
- 3 × 3 = 9
6.98 is a square number.
Answer: False
92 = 81 and 102 = 100, so 98 is not a square number.
7.122 = (answer space)
Answer: 144
- 12 × 12 = 144
8.√100 = (answer space)
Answer: 10
- 10 × 10 = 100
9.25 is a square number.
Answer: True
5 × 5 = 25
10.12 = (answer space)
Answer: 1
- 1 × 1 = 1
11.√4 = (answer space)
Answer: 2
- 2 × 2 = 4
12.47 is a square number.
Answer: False
62 = 36 and 72 = 49, so 47 is not a square number.
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.