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.
1.102 = (answer space)
Answer: 100
- 10 × 10 = 100
2.√144 = (answer space)
Answer: 12
- 12 × 12 = 144
3.4 is a square number.
Answer: True
2 × 2 = 4
4.93 = (answer space)
Answer: 729
- 9 × 9 × 9 = 729
5.The cube root of 729 is (answer space).
Answer: 9
- 9 × 9 × 9 = 729
6.81 is a cube number.
Answer: False
81 is not a whole number cubed.
7.√310 lies between the whole numbers (answer space) and (answer space).
Answer: 17, 18
- 172 = 289 and 182 = 324
- 289 < 310 < 324
8.22 + 102 = (answer space)
Answer: 104
- 4 + 100 = 104
9.52 = (answer space)
Answer: 25
- 5 × 5 = 25
10.√100 = (answer space)
Answer: 10
- 10 × 10 = 100
11.132 is a square number.
Answer: False
112 = 121 and 122 = 144, so 132 is not a square number.
12.33 = (answer space)
Answer: 27
- 3 × 3 × 3 = 27
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.