K.OA.A.3 Worksheets: Break Apart Numbers
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K.OA.A.3 (Operations and Algebraic Thinking): Split a number up to 10 into two parts in more than one way.
About this standard
Kindergartners break a number up to 10 into two parts in more than one way, such as 5 = 4 + 1 and 5 = 2 + 3, and record each split with a drawing or an equation. Shaking five two-color counters in a cup and spilling them shows a new split every time. Practice with Missing Addends Within 5 and Number Bonds to 10; the partners of 10 have their own page at K.OA.A.4.
