Grade 3 Perimeter Worksheets

Grade 3 examples by level

Real problems from the generator: always mathematically correct, and every pack is different.

Download a free Grade 3 perimeter worksheet

One page, ready to print, no account needed. Pick a level:

• BeginnerPDF · 1 page
• IntermediatePDF · 1 page
• AdvancedPDF · 1 page

These three sheets are fixed, so you can bookmark or share them and get the same page back. Answer keys and fresh numbers come with a free account.

Why Grade 3 perimeter practice matters

Picture fencing a yard: what matters is the total length of fence, not the space inside it. That's perimeter, and tracing the outline first is what makes the idea concrete before the formula takes over.

Grade 3 is where Mathter's perimeter worksheets first appear. Grade 4 picks up from here with more advanced problems.

Want the full method, tips, and common mistakes? Read the Perimeter Worksheets guide.

Frequently asked questions

What's on a Grade 3 perimeter worksheet?

Each pack has up to 12 questions per page with a matching answer key, tuned to Grade 3, with beginner, intermediate, and advanced options so a teacher, tutor, or parent can match the learner's level.

How do you find the perimeter of a rectangle?

Add all four sides, or use 2 × (length + width).

What unit is perimeter measured in?

A length unit like cm or m, not square units.

What do the small tick marks on the sides mean?

Sides with matching tick marks are the same length, so one labelled side gives you the others.

How do you find a missing side when you know the perimeter?

Take away the sides you know. For a rectangle, halve the perimeter, then subtract the side you have.