Finding Missing Dimensions Given Area or Perimeter – 4th Grade Math Activity

Given a total area or perimeter, 4th grade students work backward to find the missing dimensions of rectangles and squares in this Missing Dimensions Puzzle. It is a low-prep matching activity where students apply what they understand about area and perimeter.

How it works

As students solve, they match their answers to puzzle pieces. Arranged correctly, the pieces form a completed image, so the puzzle is self-checking.

Skills covered

• Area and perimeter problem solving with rectangles and squares
• Critical thinking and reverse operations
• Independent thinking and problem solving

How to use it

Hand it to early finishers, set it out at a math center, or send it home as homework. The built-in self-checking reduces grading time.

Quick facts

• Skill: finding missing dimensions given area or perimeter
• Grade: 4
• CCSS: 4.MD.A.3
• Answer key: included

Bundles and related resources

This activity is available in my Area and Perimeter 4th Grade Math Curriculum Unit.

Free resources

Get my free Warm Up Slides templates.

Terms of use

By purchasing this product, you own a license for one teacher only for personal use in their own classroom. Licenses are non-transferable and therefore can not be passed from one teacher to another. If the teacher who purchased this license leaves the classroom or changes schools, the license and materials leave with that teacher. No part of this resource is to be shared with colleagues or used by an entire team, grade level, school or district without purchasing the correct number of licenses. If you are a coach, principal or district interested in transferable licenses that would accommodate yearly staff changes, please contact me for a transferable license quote at lindsay@beyondtheworksheet.com.

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