Year 6 Square and Cube Numbers Worksheet — Level 3 — Practice Set 3 — Answers
Answer sheet with worked solutions for the Year 6 factors, multiples & primes worksheet.
Success TutoringWorksheetsAnswer sheetYear 6 · Mathematics · Factors, Multiples & PrimesYear 6 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.
1.42 = (answer space)
Answer: 16
- 4 × 4 = 16
2.√196 = (answer space)
Answer: 14
- 14 × 14 = 196
3.19 is a square number.
Answer: False
42 = 16 and 52 = 25, so 19 is not a square number.
4.43 = (answer space)
Answer: 64
- 4 × 4 × 4 = 64
5.The cube root of 512 is (answer space).
Answer: 8
- 8 × 8 × 8 = 512
6.84 is a cube number.
Answer: False
84 is not a whole number cubed.
7.√140 lies between the whole numbers (answer space) and (answer space).
Answer: 11, 12
- 112 = 121 and 122 = 144
- 121 < 140 < 144
8.42 + 52 = (answer space)
Answer: 41
- 16 + 25 = 41
9.182 = (answer space)
Answer: 324
- 18 × 18 = 324
10.√121 = (answer space)
Answer: 11
- 11 × 11 = 121
11.33 is a square number.
Answer: False
52 = 25 and 62 = 36, so 33 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.