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  • 4th Grade
  • Math
  • About 10 minutes
  • See it all: a chart to keep

How to Find Area

Area is the space inside a shape. Multiply the length by the width.

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How to Find AreaName:Date:Area is the space inside a shape. Multiply the length by the width.1Find the length and the width.2Multiply them: A = l × w.3Write the answer in square units, like sq cm or sq ft.Rectangle: 8 cm by 5 cm8 cm5 cm5 rows of 8 squares.Each square is 1 sq cm.A = l × wA = 8 × 5 = 40 sq cmYou don't have to count the squares. Multiplying is faster!Area or perimeter?Covering a floor with carpet? That is area: the space inside.Putting a fence around a yard? That is perimeter: the distance around.Area: square units. Perimeter: plain units.k5printables.com · Sheet #145724601 · Aligned with Common Core 4.MD.A.3

How to do it

  1. Find the length and width.
  2. Multiply them: A = l × w.
  3. Write the answer in square units.

Teaching tip

Ask, "Am I covering it or going around it?" This sheet is aligned with Common Core 4.MD.A.3.

How to Find Area chart for 4th grade (area and perimeter), free printable
Printable preview

About this chart

Area of an 8 cm by 5 cm rectangle shown as 5 rows of 8 squares and with the formula, plus how to tell area from perimeter.

What kids practice

Perimeter is the distance around a shape, and area is the space inside it. Fourth graders use formulas for rectangles. Perimeter is P = 2 × l + 2 × w, or 4 × s for a square. Area is A = l × w, measured in square units. They also work backward to find a missing side, like a rug with an area of 48 square feet and a width of 6 feet, which is 8 feet long.

Watch for

  • Mixing up area and perimeter, especially in word problems.
  • Adding only two sides for perimeter, like 8 + 5 = 13 instead of 26.
  • Writing perimeter in square units or area in plain units.
  • Dividing the perimeter by 4 to find the length of a rectangle that is not a square.

It's free to print, as many copies as you need. See the full area and perimeter guide for 4th grade.

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