✏️ Perimeter: Practice A (3.MD.D.8)

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Solve real-world problems involving perimeters of polygons. Solve each problem.

1. Rectangle 8 m by 9 m. Perimeter = ___ m

2. A rectangle has perimeter 42 m and length 13 m. Width = ___ m

3. Rectangle 12 m by 8 m. Perimeter = ___ m

4. A rectangle has perimeter 58 m and length 19 m. Width = ___ m

5. Rectangle 10 m by 12 m. Perimeter = ___ m

6. A rectangle has perimeter 28 m and length 3 m. Width = ___ m

7. Rectangle 19 m by 4 m. Perimeter = ___ m

8. A rectangle has perimeter 30 m and length 10 m. Width = ___ m

9. A rectangle has perimeter 56 m and length 18 m. Width = ___ m

10. Rectangle 7 m by 11 m. Perimeter = ___ m

11. A rectangle has perimeter 42 m and length 15 m. Width = ___ m

12. Rectangle 12 m by 10 m. Perimeter = ___ m

Answer key: 1) 34 · 2) 8 · 3) 40 · 4) 10 · 5) 44 · 6) 11 · 7) 46 · 8) 5 · 9) 10 · 10) 36 · 11) 6 · 12) 44

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Worksheets › Grade 3 Math › Perimeter › Perimeter

Grade 3 (ages 8–9)Numbers & mathsFree printable PDF

About this grade 3 worksheet

Free Grade 3 math worksheet (Common Core 3.MD.D.8): perimeter — twelve practice problems, with answer key. Skill: Solve real-world problems involving perimeters of polygons. Level: Grade 3 — also suits Year 4 (UK).

For teachers: skills & standards

CCSS 3.MD.D.8: Solve problems involving perimeter
Works as a morning-work page, a centre/station activity, homework or an early-finisher task.

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It is designed for Grade 3 (ages 8–9), but use it with any child who is ready.

What skills does it build?

Solve real-world problems involving perimeters of polygons.

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More “Perimeter” printables (3.md.d.8: solve real-world problems involving perimeters of polygons)

Perimeter: Practice B (3.MD.D.8) · Perimeter: Mixed Practice & Reasoning (3.MD.D.8) · Perimeter: Show Your Thinking (3.MD.D.8) · Perimeter: Quick Check (3.MD.D.8)

All 5 perimeter sheets → · Grade 3 Math: all 10 skills → · All Common Core grades

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