Year 7 Square and Cube Numbers Worksheet — Level 3 — Practice Set 3 — Answers
Answer sheet with worked solutions for the Year 7 factors, multiples & primes worksheet.
Success TutoringWorksheetsAnswer sheetYear 7 · Mathematics · Factors, Multiples & PrimesYear 7 Square and Cube Numbers Worksheet — Level 3 — Practice Set 3 — Answers
A square number is a number times itself; a cube number is a number times itself three times.
1.172 = (answer space)
Answer: 289
- 17 × 17 = 289
2.√361 = (answer space)
Answer: 19
- 19 × 19 = 361
3.131 is a square number.
Answer: False
112 = 121 and 122 = 144, so 131 is not a square number.
4.13 = (answer space)
Answer: 1
- 1 × 1 × 1 = 1
5.The cube root of 8 is (answer space).
Answer: 2
- 2 × 2 × 2 = 8
6.74 is a cube number.
Answer: False
74 is not a whole number cubed.
7.√379 lies between the whole numbers (answer space) and (answer space).
Answer: 19, 20
- 192 = 361 and 202 = 400
- 361 < 379 < 400
8.102 + 112 = (answer space)
Answer: 221
- 100 + 121 = 221
9.192 = (answer space)
Answer: 361
- 19 × 19 = 361
10.√144 = (answer space)
Answer: 12
- 12 × 12 = 144
11.46 is a square number.
Answer: False
62 = 36 and 72 = 49, so 46 is not a square number.
12.83 = (answer space)
Answer: 512
- 8 × 8 × 8 = 512
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.