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2.OA.C.3 Common Core Games, Videos, Lessons, Worksheets, and Quizzes
CCSS.Math.Content.2.OA.C.3:
Determine whether a group of objects (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s; write an equation to express an even number as a sum of two equal addends.
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