Lessons for K.OA.A.2
Addition and subtraction problems in wordsStories whose structure decides which operation finds the missing amount.Lesson
Addition as putting togetherTwo amounts combined make a new total.Lesson
Adding within five and tenTotals up to ten.Lesson
Acting out add and take-away stories within 10A short story about joining or taking away is acted out with objects or fingers, drawn, and told as an equation.Lesson
Subtraction as taking awayRemoving part of an amount leaves the rest.Lesson
Printable Worksheets
Addition as putting together worksheet (PDF)Printable worksheet with answer keyPreview
Adding within five and ten worksheet (PDF)Printable worksheet with answer keyPreview
Acting out add and take-away stories within 10 worksheet (PDF)Printable worksheet with answer keyPreview
Subtraction as taking away worksheet (PDF)Printable worksheet with answer keyPreview