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Add and Subtract within 20 (Fluent within 10): 1.OA.C.6 Common Core
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Add and subtract within 20 (fluent within 10): 1.oa.c.6 common core
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Addition and Subtraction within 10 by Brandy Shoemaker | TPT
Make 10 Addition Subtraction Strategy (solutions, examples, videos
Add and Subtract within 20 (Fluent within 10): 1.OA.C.6 Common Core