Year 5 Area and Perimeter Worksheet — Level 1 — Practice Set 4 — Answers
Answer sheet with worked solutions for the Year 5 area & perimeter worksheet.
Year 5 Area and Perimeter Worksheet — Level 1 — Practice Set 4 — Answers
Write the formula, substitute, then calculate. Include units.
1.A rectangle is 3 m long and 8 m wide. Find its area.
Answer: 24 m2
- A = length × width = 3 × 8
- = 24 m2
2.A rectangle is 3 cm long and 9 cm wide. Find its perimeter.
Answer: 24 cm
- P = 2 × (3 + 9)
- = 2 × 12 = 24 cm
3.A rectangle is 6 m long and 4 m wide. Find its perimeter.
Answer: 20 m
- P = 2 × (6 + 4)
- = 2 × 10 = 20 m
4.A rectangle is 4 m long and 6 m wide. Find its area.
Answer: 24 m2
- A = length × width = 4 × 6
- = 24 m2
5.A rectangle is 4 cm long and 9 cm wide. Find its area.
Answer: 36 cm2
- A = length × width = 4 × 9
- = 36 cm2
6.A rectangle is 8 m long and 7 m wide. Find its perimeter.
Answer: 30 m
- P = 2 × (8 + 7)
- = 2 × 15 = 30 m
7.A rectangle is 5 mm long and 4 mm wide. Find its perimeter.
Answer: 18 mm
- P = 2 × (5 + 4)
- = 2 × 9 = 18 mm
8.A rectangle is 3 cm long and 9 cm wide. Find its area.
Answer: 27 cm2
- A = length × width = 3 × 9
- = 27 cm2
9.A rectangle is 12 mm long and 12 mm wide. Find its perimeter.
Answer: 48 mm
- P = 2 × (12 + 12)
- = 2 × 24 = 48 mm
10.A rectangle is 10 mm long and 9 mm wide. Find its perimeter.
Answer: 38 mm
- P = 2 × (10 + 9)
- = 2 × 19 = 38 mm
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.