7th Grade Square and Cube Numbers Worksheet — Level 3 — Practice Set 2 — Answers
Answer sheet with worked solutions for the 7th Grade factors, multiples & primes worksheet.
7th Grade Square and Cube Numbers Worksheet — Level 3 — Practice Set 2 — Answers
A square number is a number times itself; a cube number is a number times itself three times.
1.182 = (answer space)
Answer: 324
- 18 × 18 = 324
2.√169 = (answer space)
Answer: 13
- 13 × 13 = 169
3.16 is a square number.
Answer: True
4 × 4 = 16
4.23 = (answer space)
Answer: 8
- 2 × 2 × 2 = 8
5.The cube root of 343 is (answer space).
Answer: 7
- 7 × 7 × 7 = 343
6.27 is a cube number.
Answer: True
3 × 3 × 3 = 27
7.√252 lies between the whole numbers (answer space) and (answer space).
Answer: 15, 16
- 152 = 225 and 162 = 256
- 225 < 252 < 256
8.32 + 92 = (answer space)
Answer: 90
- 9 + 81 = 90
9.152 = (answer space)
Answer: 225
- 15 × 15 = 225
10.√289 = (answer space)
Answer: 17
- 17 × 17 = 289
11.6 is a square number.
Answer: False
22 = 4 and 32 = 9, so 6 is not a square number.
12.13 = (answer space)
Answer: 1
- 1 × 1 × 1 = 1
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.