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Perimeter of Bigger Rectangles is a free printable Grade 3 maths worksheet on perimeter with larger side lengths, aligned to Common Core standard 3.MD.D.8. It prints 5 questions with an answer key on its own sheet of paper, in 25 versions, 22 of them with different questions, so no two pupils in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 1 of 25 · the same problems every time you open this link.

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One paper per pupil

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22 of these 25 sets ask different questions — this skill does not have 25 questions to give. The rest reorder them, so no two pupils have the same paper in front of them.

Perimeter of Bigger Rectangles

3.MD.D.8

NameDate

Work out the perimeter.

1.
Sides 13 and 13. Perimeter =
2.
Sides 14 and 14. Perimeter =
3.
Sides 12 and 12. Perimeter =
4.
Sides 6 and 6. Perimeter =
5.
Sides 10 and 10. Perimeter =

LessonPrint · 3.MD.D.8 · Set 1 · free to copy for classroom use

Answer key — Perimeter of Bigger Rectangles

Set 1. Prints on its own sheet.

  1. 1.52 units
  2. 2.56 units
  3. 3.48 units
  4. 4.24 units
  5. 5.40 units

Questions about Perimeter of Bigger Rectangles

What does the Perimeter of Bigger Rectangles worksheet cover?

It practises perimeter with larger side lengths — 5 questions for Grade 3, all on Common Core 3.MD.D.8: Find the distance around a shape. The instruction to pupils is “Work out the perimeter”, and the answer key follows on the next sheet.

Which Common Core standard does Perimeter of Bigger Rectangles practise?

CCSS.MATH.CONTENT.3.MD.D.8 — 3.MD.D.8, in the Measurement & Data domain for Grade 3. The published standard reads: “Solve real world and mathematical problems involving perimeters of polygons.” The worksheet assesses that standard rather than a paraphrase of it.

What age or grade is this worksheet for?

Perimeter of Bigger Rectangles is written for Grade 3, typically ages 8-9. It is one of the sheets on 3.MD.D.8, so it suits any pupil working at that standard — including older pupils revisiting it and younger ones working ahead.

Does Perimeter of Bigger Rectangles come with an answer key?

Yes. All 5 answers are generated from the same problems as the questions, so the key cannot drift out of step with the sheet. It starts on a fresh sheet of paper, after the questions, so it is not handed out with the class by accident.

How many different versions of Perimeter of Bigger Rectangles can I print?

25 versions, of which 22 ask genuinely different questions — this skill does not have 25 distinct questions to give, so the rest reorder them and no two pupils still share a paper. Set 1 downloads all 25 as one PDF.

Is Perimeter of Bigger Rectangles free to print and photocopy?

Yes. Perimeter of Bigger Rectangles, its answer key and its 25 versions are free to print and photocopy for your own class, with no account, no email capture and no subscription at the download step. Please do not resell them or republish them as your own.

Is there a lesson plan to teach 3.MD.D.8?

Yes — “Perimeter of Polygons” is a 45-minute Grade 3 plan for 3.MD.D.8, timed section by section, with the misconceptions to expect and an exit ticket. Perimeter of Bigger Rectangles is the practice that follows it.

More practice for 3.MD.D.8

Find the distance around a shape.

Teaching this next? Perimeter of Polygons is the 45-minute plan for it, with the misconceptions to expect.

All Grade 3 worksheets

Last reviewed 2026-09-05. Aligned to 3.MD.D.8 of the Common Core State Standards for mathematics.