Year 7 Factors, Multiples and Primes Worksheet — Level 1 — Practice Set 4 — Answers
Answer sheet with worked solutions for the Year 7 factors, multiples & primes worksheet.
Success TutoringWorksheetsAnswer sheetYear 7 · Mathematics · Factors, Multiples & PrimesYear 7 Factors, Multiples and Primes Worksheet — Level 1 — Practice Set 4 — Answers
Part A: Factors
1.List all the factors of 34.
Answer: 1, 2, 17, 34
2.List all the factors of 12.
Answer: 1, 2, 3, 4, 6, 12
3.List all the factors of 36.
Answer: 1, 2, 3, 4, 6, 9, 12, 18, 36
4.List all the factors of 33.
Answer: 1, 3, 11, 33
Part B: Multiples
5.Write the first five multiples of 8.
Answer: 8, 16, 24, 32, 40
6.Write the first five multiples of 9.
Answer: 9, 18, 27, 36, 45
7.Write the first five multiples of 3.
Answer: 3, 6, 9, 12, 15
8.Write the first five multiples of 10.
Answer: 10, 20, 30, 40, 50
Part C: Prime or not?
9.38 is a prime number.
Answer: False
38 = 2 × 19, so it is composite.
10.10 is a prime number.
Answer: False
10 = 2 × 5, so it is composite.
11.36 is a prime number.
Answer: False
36 = 2 × 18, so it is composite.
12.24 is a prime number.
Answer: False
24 = 2 × 12, so it is composite.
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.