Year 5 Area and Perimeter Worksheet — Level 1 — Practice Set 3 — Answers
Answer sheet with worked solutions for the Year 5 area & perimeter worksheet.
Year 5 Area and Perimeter Worksheet — Level 1 — Practice Set 3 — Answers
Write the formula, substitute, then calculate. Include units.
1.A rectangle is 9 mm long and 11 mm wide. Find its area.
Answer: 99 mm2
- A = length × width = 9 × 11
- = 99 mm2
2.A rectangle is 3 m long and 10 m wide. Find its area.
Answer: 30 m2
- A = length × width = 3 × 10
- = 30 m2
3.A rectangle is 5 m long and 8 m wide. Find its area.
Answer: 40 m2
- A = length × width = 5 × 8
- = 40 m2
4.A rectangle is 11 m long and 10 m wide. Find its area.
Answer: 110 m2
- A = length × width = 11 × 10
- = 110 m2
5.A rectangle is 7 cm long and 10 cm wide. Find its area.
Answer: 70 cm2
- A = length × width = 7 × 10
- = 70 cm2
6.A rectangle is 4 mm long and 6 mm wide. Find its area.
Answer: 24 mm2
- A = length × width = 4 × 6
- = 24 mm2
7.A rectangle is 11 m long and 4 m wide. Find its perimeter.
Answer: 30 m
- P = 2 × (11 + 4)
- = 2 × 15 = 30 m
8.A rectangle is 3 mm long and 5 mm wide. Find its area.
Answer: 15 mm2
- A = length × width = 3 × 5
- = 15 mm2
9.A rectangle is 6 cm long and 11 cm wide. Find its perimeter.
Answer: 34 cm
- P = 2 × (6 + 11)
- = 2 × 17 = 34 cm
10.A rectangle is 8 mm long and 12 mm wide. Find its area.
Answer: 96 mm2
- A = length × width = 8 × 12
- = 96 mm2
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.