Year 5 Square and Cube Numbers Worksheet — Level 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 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.√196 = (answer space)
Answer: 14
- 14 × 14 = 196
3.10 is a square number.
Answer: False
32 = 9 and 42 = 16, so 10 is not a square number.
4.103 = (answer space)
Answer: 1000
- 10 × 10 × 10 = 1000
5.The cube root of 64 is (answer space).
Answer: 4
- 4 × 4 × 4 = 64
6.53 is a cube number.
Answer: False
53 is not a whole number cubed.
7.√52 lies between the whole numbers (answer space) and (answer space).
Answer: 7, 8
- 72 = 49 and 82 = 64
- 49 < 52 < 64
8.42 + 102 = (answer space)
Answer: 116
- 16 + 100 = 116
9.32 = (answer space)
Answer: 9
- 3 × 3 = 9
10.√16 = (answer space)
Answer: 4
- 4 × 4 = 16
11.36 is a square number.
Answer: True
6 × 6 = 36
12.93 = (answer space)
Answer: 729
- 9 × 9 × 9 = 729
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.