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Common Core · Grade 2 · Number and Operations in Base Ten

Standard 2.NBT.B.9

Free lessons and printable worksheets aligned to Common Core math standard 2.NBT.B.9.

2 lessons2 worksheets

Lessons for 2.NBT.B.9

Properties of additionTwo numbers added in either order give the same total.Lesson

Compensation when adding and subtractingAdding a round number and then taking the extra back off.Lesson

Printable Worksheets

Properties of addition worksheet (PDF)Printable worksheet with answer keyPreview

Compensation when adding and subtracting worksheet (PDF)Printable worksheet with answer keyPreview