# Perimeter and Area (3rd Grade Go Math Chapter 11)

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This is a 16 question test on Understanding Division. It corresponds to Go Math Chapter 11. It is written and grouped by standards covered so you can easily see how your students perform on each standard covered. It includes a test, answer key, and data sheet

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.
Use tiling to show in a concrete case that the area of a rectangle with whole-number side lengths π’ and π£ + π€ is the sum of π’ Γ π£ and π’ Γ π€. Use area models to represent the distributive property in mathematical reasoning.
Solve real world and mathematical problems involving perimeters of polygons, including finding the perimeter given the side lengths, finding an unknown side length, and exhibiting rectangles with the same perimeter and different areas or with the same area and different perimeters.
Multiply side lengths to find areas of rectangles with whole-number side lengths in the context of solving real world and mathematical problems, and represent whole-number products as rectangular areas in mathematical reasoning.
Find the area of a rectangle with whole-number side lengths by tiling it, and show that the area is the same as would be found by multiplying the side lengths.
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