Adding Perimeters Worksheet – 3rd Grade Addition & Geometry Practice

Adding Perimeters Worksheet helps third grade learners practice perimeter with clear directions and a clean, kid-friendly layout. Print it and it is ready for class, homework, or homeschool lessons.

Learning objective: Students will review perimeter, practice it in context, and show what they know in a way that is easy for the teacher to check.

Why it works: Short, focused practice is one of the best ways to help third grade students remember a new skill. Clear directions mean students can get started quickly, and the simple format makes it easy for you to spot who needs more help.

What's included:

• 1 printable worksheet page

• Clear, student-friendly directions

• Answer key (1 page)

• Cover page

How it's organized: The page opens with these directions: "Find the perimeter of shape A and shape B. Then add the two of them to get the total perimeter. The opposite sides of a rectangle are the same length. All four sides of a square are the same length." Students then complete the practice items in order and check their work before turning it in.

Grade level: Designed for third grade students. It also works well for second grade and fourth grade students who need extra practice or a fresh review.

How to use it: Use it for whole-group practice, small-group instruction, independent work, centers, morning work, homework, or an emergency sub plan.

Answer key: An answer key is included, so you can check work quickly or let students self-correct.

Teaching tips and variations:

• Project the page and solve one or two items as a class before students work on their own.

• Use it as an exit ticket the day after a perimeter lesson to see who needs more support.

• Keep a few copies in your early finisher bin for independent review.

Skills covered: Addition, Geometry, Measurement, Perimeter, Math

Standards: Supports Common Core 3. NBT.A.2, 3.G.A.1, 3. MD.A.2, 3. MD.B.4.

File type: PDF, ready to print.

Number of pages: 3 (1 worksheet page, 1 answer key page, 1 cover page).

This printable is part of the Have Fun Teaching collection of math resources for elementary classrooms and homeschools. Visit our shop for more practice pages on related skills. Have Fun Teaching on Teach Simple