Measuring Area
Grade 3 · Math · Area and Perimeter · Quebec, Canada
Lesson Summary
You can find the area of a rectangle by multiplying its length by its width.
Explanation
Instead of counting every square one by one, you can multiply. A rectangle that is 5 cm long and 3 cm wide has 5 squares in each row and 3 rows, so 5 × 3 = 15 square centimeters. This works because multiplication counts equal groups quickly. The formula is area = length × width. Make sure both measurements use the same unit before you multiply.
Practice Questions
Q1: A rectangle is 7 cm long and 4 cm wide. What is its area?
Answer: 28 cm², because 7 × 4 = 28.
Q2: A square has sides of 6 m. What is its area?
Answer: 36 m², because 6 × 6 = 36.
Q3: A rectangle has an area of 24 cm² and a length of 8 cm. What is its width?
Answer: 3 cm, because 24 ÷ 8 = 3.
People Also Ask
What is Measuring Area in Grade 3 Math?+
Measuring Area is a lesson in the Area and Perimeter chapter of Grade 3 Math. It is part of the Quebec, Canada school curriculum and covers key concepts that students need to understand at this level.
What grade level covers Measuring Area?+
Measuring Area is taught in Grade 3 as part of the Math curriculum in Quebec, Canada.
How can I help my child with Area and Perimeter in Math?+
Start with the lesson summary and explanation on this page. Practice the questions provided, then use TutorTom for personalized, step-by-step help with Area and Perimeter topics.