Maryland College and Career-Ready Standards
MD.MA.4.MD. Measurement and Data (MD)
4.MD.A. Solve problems involving measurement and conversion of measurements for a larger unit to a smaller unit.
4.MD.A.3. Supporting 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 formulas as a multiplication equation with an unknown factor.
4.MD.A.3.2. Ability to apply knowledge of factors, finding an unknown factor in an equation, and the relationship between multiplication and area.