Common Core State Standard: 4.MD.3

Grade 4
Subject MATH
Domain Measurement & Data
Theme Solve problems involving measurement and conversion of measurements from a larger unit to a smaller unit
Standard Apply the area and perimeter formulas for rectangles in real world and mathematical problems. For example, find the width of a rectangular room given the area of the flooring and the length, by viewing the area formula as a multiplication equation with an unknown factor.
Reference URL http://www.corestandards.org/Math/Content/4/MD
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