2.OA.A.1 Worksheets: Word Problems Within 100
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2.OA.A.1 (Operations and Algebraic Thinking): Solve one- and two-step addition and subtraction story problems within 100.
About this standard
The hardest problems here are the ones where the unknown comes first (some birds were on a tree, 5 more came, now there are 12). A quick bar model helps them decide whether to add or subtract. Practice with Addition and Subtraction Word Problems Within 100.
Worksheets for 2.OA.A.1
Missing Addends Within 100
Missing Numbers in Subtraction to 100
Addition and Subtraction Word Problems Within 100
Two-Step Word Problems Within 100