5th Grade Area and Perimeter Worksheet — Level 1 — Practice Set 3 — Answers
Answer sheet with worked solutions for the 5th Grade area & perimeter worksheet.
Success TutoringWorksheetsAnswer sheet5th Grade · Mathematics · Area & Perimeter5th Grade Area and Perimeter Worksheet — Level 1 — Practice Set 3 — Answers
Write the formula, substitute, then calculate. Include units.
1.A rectangle is 3 mm long and 10 mm wide. Find its perimeter.
Answer: 26 mm
- P = 2 × (3 + 10)
- = 2 × 13 = 26 mm
2.A rectangle is 5 mm long and 12 mm wide. Find its perimeter.
Answer: 34 mm
- P = 2 × (5 + 12)
- = 2 × 17 = 34 mm
3.A rectangle is 10 m long and 5 m wide. Find its perimeter.
Answer: 30 m
- P = 2 × (10 + 5)
- = 2 × 15 = 30 m
4.A rectangle is 4 cm long and 7 cm wide. Find its area.
Answer: 28 cm2
- A = length × width = 4 × 7
- = 28 cm2
5.A rectangle is 7 cm long and 3 cm wide. Find its perimeter.
Answer: 20 cm
- P = 2 × (7 + 3)
- = 2 × 10 = 20 cm
6.A rectangle is 11 cm long and 10 cm wide. Find its perimeter.
Answer: 42 cm
- P = 2 × (11 + 10)
- = 2 × 21 = 42 cm
7.A rectangle is 2 m long and 10 m wide. Find its perimeter.
Answer: 24 m
- P = 2 × (2 + 10)
- = 2 × 12 = 24 m
8.A rectangle is 12 m long and 7 m wide. Find its perimeter.
Answer: 38 m
- P = 2 × (12 + 7)
- = 2 × 19 = 38 m
9.A rectangle is 7 m long and 4 m wide. Find its area.
Answer: 28 m2
- A = length × width = 7 × 4
- = 28 m2
10.A rectangle is 2 mm long and 11 mm wide. Find its area.
Answer: 22 mm2
- A = length × width = 2 × 11
- = 22 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.