Students practice their subtraction fact fluency with this set of 21 Boom Cards. All problems subtract from the number 20 and answers are presented in multiple choice format.
Helps to address the Common Core Standards:
1.OA.C.6 - Add and subtract within 20, demonstrating fluency for addition and subtraction within 10.
2.OA.B.2 - Fluently add and subtract within 20 using mental strategies.
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Subtraction Fluency Boom Card Bundle
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