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Grade 3 · Math · Measurement

3rd Grade Find the Area of Rectangles worksheets

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Find the Area of Rectangles

Grade 3 Math Worksheet

NameDate

Find the area of each rectangle in square meters.

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3rd Grade Find the Area of Rectangles worksheet 1 – printable PDF
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About this worksheet

The area of a rectangle is the number of unit squares that cover it. A third grader learns that the squares sit in equal rows, so counting them is the same as multiplying the number of rows by the number in each row. On this worksheet your child sees nine rectangles drawn on a grid, each with its two sides labelled in meters, and writes the area as a number of square meters.

Building Confidence uses small rectangles up to 5 by 5, On Level uses sides up to 8, and Challenge Me uses sides up to 9, including squares. Ask your child to say the multiplication sentence out loud before writing the answer: 3 rows of 5 squares is 3 times 5, which is 15 square meters.

What your child will learn

  • Find area by multiplying the two side lengths
  • Write area in square units
  • Connect rows of squares to multiplication

Common Core standard: 3.MD.C.7

Worked example

A rectangle 5 meters long and 3 meters wide has 3 rows of 5 squares: 3 × 5 = 15 square meters.

Common mistake

Adding the sides, which finds the distance around, instead of multiplying them.

Helpful hint

Multiply the length by the width.

Questions parents ask

What is the most common mistake with find the area of rectangles?

Adding the sides, which finds the distance around, instead of multiplying them.

How can I help my child with find the area of rectangles?

Multiply the length by the width.

Are these 3rd grade math worksheets free to print?

Yes. All 6 printable versions on this page are free to download and print, with no account needed.

Similar: Area Concepts · Perimeter Word Problems

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