5th Grade Square and Cube Numbers Worksheet — Level 3 — Answers
Answer sheet with worked solutions for the 5th Grade factors, multiples & primes worksheet.
5th Grade 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.
1.72 = (answer space)
Answer: 49
- 7 × 7 = 49
2.√289 = (answer space)
Answer: 17
- 17 × 17 = 289
3.36 is a square number.
Answer: True
6 × 6 = 36
4.103 = (answer space)
Answer: 1000
- 10 × 10 × 10 = 1000
5.The cube root of 8 is (answer space).
Answer: 2
- 2 × 2 × 2 = 8
6.25 is a cube number.
Answer: False
25 is not a whole number cubed.
7.√73 lies between the whole numbers (answer space) and (answer space).
Answer: 8, 9
- 82 = 64 and 92 = 81
- 64 < 73 < 81
8.52 + 42 = (answer space)
Answer: 41
- 25 + 16 = 41
9.92 = (answer space)
Answer: 81
- 9 × 9 = 81
10.√64 = (answer space)
Answer: 8
- 8 × 8 = 64
11.13 is a square number.
Answer: False
32 = 9 and 42 = 16, so 13 is not a square number.
12.23 = (answer space)
Answer: 8
- 2 × 2 × 2 = 8
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.