5th Grade Square and Cube Numbers Worksheet — Level 1 — Practice Set 4 — Answers
Answer sheet with worked solutions for the 5th Grade factors, multiples & primes worksheet.
5th Grade Square and Cube Numbers Worksheet — Level 1 — Practice Set 4 — Answers
A square number is a number times itself; a cube number is a number times itself three times.
1.122 = (answer space)
Answer: 144
- 12 × 12 = 144
2.√4 = (answer space)
Answer: 2
- 2 × 2 = 4
3.13 is a square number.
Answer: False
32 = 9 and 42 = 16, so 13 is not a square number.
4.32 = (answer space)
Answer: 9
- 3 × 3 = 9
5.√100 = (answer space)
Answer: 10
- 10 × 10 = 100
6.99 is a square number.
Answer: False
92 = 81 and 102 = 100, so 99 is not a square number.
7.82 = (answer space)
Answer: 64
- 8 × 8 = 64
8.√81 = (answer space)
Answer: 9
- 9 × 9 = 81
9.19 is a square number.
Answer: False
42 = 16 and 52 = 25, so 19 is not a square number.
10.52 = (answer space)
Answer: 25
- 5 × 5 = 25
11.√9 = (answer space)
Answer: 3
- 3 × 3 = 9
12.4 is a square number.
Answer: True
2 × 2 = 4
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.