fbpx

KidsKonnect

Measurement and Data: Finding Area using Multiplication and Addition CCSS 3.MD.7, 7a, 7b Facts & Worksheets

In previous lessons, we learned that you could find a figure’s area by counting the number of unit squares that fit inside it.

Search for Worksheets

Worksheets /Math /Grade 3 (ages 8-9) /Measurement and Data: Finding Area using Multiplication and Addition CCSS 3.MD.7, 7a, 7b Facts & Worksheets

Premium
Not ready to purchase a subscription? Click to download the free sample version   Download sample

In previous lessons, we learned that you could find a figure’s area by counting the number of unit squares that fit inside it. By counting the number of square units inside the figure below, we know that its area is 12 square units.

See the fact file below for more information on the finding area using multiplication and addition or alternatively, you can download our 32-page Measurement and Data: Finding Area using Multiplication and Addition CCSS 3.MD.7, 7a, 7b worksheet pack to utilise within the classroom or home environment.

Key Facts & Information

LEARNING OBJECTIVE

  • At the end of the lesson, the student will be able to solve for the area of rectangles by multiplication and addition. The student will also be able to look for missing sides when an area is given. The student will also be able to compare two rectangles of different areas and solve related word problems.

A NOTE FOR THE TEACHER

  • When teaching Finding Area using Multiplication and Addition, take note of the following:
    • Aid the student in transitioning from counting unit squares to multiplying sides to find the area.
    • Remind the student that multiplication is just like adding the same number over and over.

THEORY

  • In previous lessons, we learned that you could find a figure’s area by counting the number of unit squares that fit inside it. By counting the number of square units inside the figure below, we know that its area is 12 square units.

  • We can also look at this another way. If we count the top row of the figure, we see that there are 4 square units.

  • We also notice that there are three rows of four units. Therefore, we can understand this figure’s area as 4 + 4 + 4, or 3 x 4. We can also look at this figure as 4 columns of 3 unit squares. This would then translate as 3 + 3 + 3 + 3, or 4 x 3. As you can see, all of these expressions are still equal to the area we found before by counting 12 unit squares.

  • We can find the area of rectangles by multiplying the measures of its sides. We can also think of it as adding rows or columns of unit squares a certain number of times.

Measurement and Data: Finding Area using Multiplication and Addition CCSS 3.MD.7, 7a, 7b

This is a fantastic bundle that includes everything you need to know about Measurement and Data: Finding Area using Multiplication and Addition across 32 in-depth pages. These are ready-to-use worksheets that align with the Common Core CCSS code 3.MD.7, 7a, 7b for Measurement and Data: Finding Area using Multiplication and Addition.

Table of contents:

  • A lesson plan
  • Warm-up activity
  • Math theory explained
  • Assisted learning activities
  • Independent learning activities
  • Extension activities and games
  • Answer keys

Link/cite this page

If you reference any of the content on this page on your own website, please use the code below to cite this page as the original source.

Link will appear as Measurement and Data: Finding Area using Multiplication and Addition CCSS 3.MD.7, 7a, 7b Facts & Worksheets: https://kidskonnect.com - KidsKonnect, June 22, 2021

Use With Any Curriculum

These worksheets have been specifically designed for use with any international curriculum. You can use these worksheets as-is, or edit them using Google Slides to make them more specific to your own student ability levels and curriculum standards.

Related Resources