MathematiCat

3rd grade area of rectangles worksheets

Your child finds the area of a rectangle by multiplying its length by its width instead of counting every square.

Common Core 3.MD.C.7.b (Measurement and Data)

Sample problems

  1. Sample 1The classroom rug is 9 feet long and 4 feet wide. The library rug is 8 feet long and 2 feet wide. How many more square feet of floor does the classroom rug cover than the library rug?

    Answer: 20 square feet

  2. Sample 2A rectangle is 2 inches long and 4 inches wide. What is its area?

    Answer: 8 square inches

  3. A bit harderThe side lengths are in feet. Which rectangle has the larger area?
    A. They have the same area.
    B. You need more information to tell.
    C. Rectangle P
    D. Rectangle Q

    Answer: D

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Area of rectangles