Year 5 Square and Cube Numbers Worksheet — Level 1 — Practice Set 4 — 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 4 — Answers
A square number is a number times itself; a cube number is a number times itself three times.
1.92 = (answer space)
Answer: 81
- 9 × 9 = 81
2.√49 = (answer space)
Answer: 7
- 7 × 7 = 49
3.49 is a square number.
Answer: True
7 × 7 = 49
4.112 = (answer space)
Answer: 121
- 11 × 11 = 121
5.√4 = (answer space)
Answer: 2
- 2 × 2 = 4
6.69 is a square number.
Answer: False
82 = 64 and 92 = 81, so 69 is not a square number.
7.42 = (answer space)
Answer: 16
- 4 × 4 = 16
8.√1 = (answer space)
Answer: 1
- 1 × 1 = 1
9.20 is a square number.
Answer: False
42 = 16 and 52 = 25, so 20 is not a square number.
10.32 = (answer space)
Answer: 9
- 3 × 3 = 9
11.√36 = (answer space)
Answer: 6
- 6 × 6 = 36
12.115 is a square number.
Answer: False
102 = 100 and 112 = 121, so 115 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.