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Recognize Area as Additive

Grade 3 Common Core Math Standard

Aligned To Common Core Standard:

Grade 3 Measurement - 3.MD.7

Printable Worksheets And Lessons


  • Area of Split Rectangles Step-by-step Lesson- Take a figure and break into 2 rectangles to help you find the area of the figure.

  • Guided Lesson - We start to look at the actual applications of this skill to the real world. Home contractors do this everyday.

  • Guided Lesson Explanation - I use outlines to show you how to break up area into digestible parts to work with.

  • Practice Worksheet - I did a three-three-three method here. Three simple word problems, three slightly involved problems, and three visual based problems.

  • Matching Worksheet - Match the word problems or the figures to their calculated area.

AnswersAnswer Keys



View Answer Keys- All the answer keys in one file.





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Homework Sheets

Students will usually have the option to break the shape up in two directions.




Practice Worksheets

Always encourage students to color in the shapes or at least draw a line, like I do.




Math Skill Quizzes

It takes forever to double check the answer keys on these.