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Common Core · Grade 3 · Operations and Algebraic Thinking

Standard 3.OA.A.3

Free lessons and printable worksheets aligned to Common Core math standard 3.OA.A.3.

4 lessons4 worksheets

Lessons for 3.OA.A.3

The area modelA rectangle whose side lengths are the factors and whose area is the product.Lesson
What division meansHow many in each group, or how many groups: two questions, one operation.Lesson
Equal group problemsStories about a number of groups holding the same amount each.Lesson
What multiplication meansThree groups of four, as an array, as repeated addition, as area.Lesson

Printable Worksheets

The area model worksheet (PDF)Printable worksheet with answer keyPreview
What division means worksheet (PDF)Printable worksheet with answer keyPreview
Equal group problems worksheet (PDF)Printable worksheet with answer keyPreview
What multiplication means worksheet (PDF)Printable worksheet with answer keyPreview