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Brownie Trays: Break Apart the Area

Grade 3 brownie tray practice using tiling to show the distributive property: split rectangles into parts, add the areas, and match expressions.

Grade 3MathInteractive · Printable

Aligned to3.MD.C.7.c

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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, Short answer, Drawing

About this worksheet

What students practice

Students use tiled rectangles to show that a × (b + c) equals a × b + a × c.
Students find the area of a rectangle by splitting it into two or three smaller rectangles and adding the areas.
Students match split rectangles to expressions and draw a rectangle for a given expression.

How to use

Use after students can find area by multiplying side lengths. Do Part 1 together by counting the pieces, then let students try Parts 2 and 3 on their own.

Curriculum