# Determining Area & Perimeter of Complex Shapes by Adding & Subtracting Pieces

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Resource Type
Common Core Standards
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Product Description
This product contains 4 worksheets to help students practice breaking apart a complex shape in order to determine the area of several smaller rectangles that can be joined together to find the area of the original shape. I use these with my students that struggle with "seeing the rectangles" in a complex shape when we're trying to find the area. Together we color as many rectangles as needed and find the area of those rectangles. Then, we record our findings (in color, of course) and add the areas to find the area of the entire shape.

Once students have mastered breaking apart shapes, they can be moved on to my Area & Perimeter Task Cards Sets 2 & 3.

Cards can be printed in color or black line masters. Laminate them for durability.

Skills Practiced
-Area
-Perimeter

You may also want to check out:

Area & Perimeter of Complex Shapes - Set 1 - Each shape is broken down into unit squares.

Area & Perimeter of Complex Shapes - Set 2 - Help students practice finding the area or perimeter of a complex shape given the length of each side of the shape.

Area & Perimeter of Complex Shapes - Set 3 - Help students practice finding the area or perimeter of a complex shape given the length of some, but not all, of the sides of the shape.

Bundle: Area & Perimeter of Complex Shapes - Area & Perimeter of Complex Shapes Sets 1-3 and Determine Area & Perimeter of Complex Shapes by Adding & Subtracting Pieces in one bundle.

CCSS.MATH.CONTENT.3.MD.C.7.D
Recognize area as additive. Find areas of rectilinear figures by decomposing them into non-overlapping rectangles and adding the areas of the non-overlapping parts, applying this technique to solve real world problems.
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Total Pages
5 pages
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