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 30.
Answer: 1, 2, 3, 5, 6, 10, 15, 30
2.List all the factors of 16.
Answer: 1, 2, 4, 8, 16
3.List all the factors of 29.
Answer: 1, 29
4.List all the factors of 15.
Answer: 1, 3, 5, 15
Part B: Multiples
5.Write the first five multiples of 11.
Answer: 11, 22, 33, 44, 55
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 5.
Answer: 5, 10, 15, 20, 25
Part C: Prime or not?
9.36 is a prime number.
Answer: False
36 = 2 × 18, so it is composite.
10.18 is a prime number.
Answer: False
18 = 2 × 9, so it is composite.
11.6 is a prime number.
Answer: False
6 = 2 × 3, so it is composite.
12.32 is a prime number.
Answer: False
32 = 2 × 16, 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.