Grade 4 Measurement: Area Problems

Worked examples

Real problems from the practice worksheets, solved one step at a time.

1. Example 1

   Find the area of a rectangle 16 units by 19 units.

   1. Area is the number of unit squares inside the rectangle: 19 rows of 16 squares.
   2. Multiply length × width: 16 × 19 = 304.
   3. The area is 304 square units.

   Answer: 304 square units

2. Example 2

   A rectangle has an area of 24 square centimeters. Its length is 8 centimeters. What is its width in centimeters?

   1. Area = length × width, so 8 × width = 24.
   2. To find the width, divide the area by the length: 24 ÷ 8 = 3.
   3. Check: 8 × 3 = 24. The width is 3 centimeters.

   Answer: 3

3. Example 3

   A rectangular classroom floor is 37 feet long and 34 feet wide. What is its area in square feet?

   1. The area of a rectangle is length × width.
   2. 37 × 34 = 1258.
   3. The classroom floor has an area of 1258 square feet.

   Answer: 1258