MAFS.4.MD.1.2 – Use the four operations to solve word problems^{1} involving distances, intervals of time, and money, including problems involving simple fractions or decimals^{2}. Represent fractional quantities of distance and intervals of time using linear models. (^{2}Computational fluency with fractions and decimals is not the goal for students at this grade level.)

MAFS.4.MD.1.3 – 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.*

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