Year 7 Factors, Multiples and Primes Worksheet — Level 1 — 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 — Answers
Part A: Factors
1.List all the factors of 12.
Answer: 1, 2, 3, 4, 6, 12
2.List all the factors of 27.
Answer: 1, 3, 9, 27
3.List all the factors of 33.
Answer: 1, 3, 11, 33
4.List all the factors of 25.
Answer: 1, 5, 25
Part B: Multiples
5.Write the first five multiples of 4.
Answer: 4, 8, 12, 16, 20
6.Write the first five multiples of 10.
Answer: 10, 20, 30, 40, 50
7.Write the first five multiples of 8.
Answer: 8, 16, 24, 32, 40
8.Write the first five multiples of 11.
Answer: 11, 22, 33, 44, 55
Part C: Prime or not?
9.44 is a prime number.
Answer: False
44 = 2 × 22, so it is composite.
10.25 is a prime number.
Answer: False
25 = 5 × 5, so it is composite.
11.22 is a prime number.
Answer: False
22 = 2 × 11, so it is composite.
12.20 is a prime number.
Answer: False
20 = 2 × 10, 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.