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Treehouse Builders: Break Apart Floor Plans to Find Area

Grade 3 composite area practice: split L-, T-, and U-shaped treehouse floor plans into rectangles, multiply, and add to find the total area.

Grade 3MathInteractive · Printable

Aligned to3.MD.C.7.d

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What’s included

Single worksheet
Auto-graded online
1 Common Core standard
Printable answer key
11 questions
Classroom-ready

Details

Format: Interactive · Printable
Grade: Grade 3
Subject: Math
Question types: Fill in the blank, Multiple choice, Matching, Circle the answer, Short answer

About this worksheet

What students practice

Students find the area of a shape made of rectangles by splitting it and adding the areas of the parts.
Students use known side lengths to find a missing side length of one rectangle part.
Students explain why a shape made of rectangles cannot be found by multiplying its outside lengths.

How to use

Use after students can find the area of a rectangle by multiplying. Have them shade each rectangle part in a different color before they multiply, then add the parts.

Curriculum