Free worksheets · Grade 3
Area of Rectangles Worksheet
Multiply the length by the width of each rectangle and write the area in square units.
Free printable
Area of Rectangles
10 questions, one page, US Letter. Print it and do it on paper.
On the sheet: Area is the number of square units it takes to cover a shape. Multiply the length by the width. Write the answer in square units: if the sides are in inches, the area is in square inches (in²), because you multiplied inches by inches.
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About this worksheet
Area is how many unit squares it takes to cover a shape. A rectangle 6 cm long and 4 cm wide is covered by 4 rows of 6 squares, so its area is 24 square centimeters.
That is why area is length × width, and why the answer is in square units: cm², in², ft².
A worked example
A rectangle is 6 cm long and 4 cm wide. What is its area?
- Read the two side lengths: 6 cm and 4 cm.
- Area is length × width: 6 × 4.
- 6 × 4 = 24.
- Write the unit as square centimeters: 24 cm².
Answer: 24 cm²
The common mistake
What it looks like: Adding the sides instead of multiplying: 6 + 4 + 6 + 4 = 20. That is the perimeter, not the area.
Why it happens: Perimeter and area are taught close together, and both start from the same two numbers.
How to fix it: Ask what is being measured: the edge (perimeter, add) or the inside (area, multiply). Sketch the rows of squares if unsure.
Ten minutes a day, on paper. We plan what comes next.
A printed page and a pencil. No screen, no login for your child. Snap a photo when they’re done: AI scores it, and what they missed comes back on the sheets that follow.
- Mon Area of Rectangles
- Tue What they missed, back again
- Wed The next step, when they’re ready
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