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Add and subtract within 20, demonstrating fluency for addition and subtraction within 10.
7 free worksheets · Standards-aligned · Quality-checked automatically
Add and subtract within 20, demonstrating fluency for addition and subtraction within 10.
This standard sits within the Operations & Algebraic Thinking domain of the Common Core Math standards for Grade 1. Students working at the 1.OA.C.6 benchmark are expected to demonstrate the specific skills below — both in isolation and in real-world problem contexts.
Every worksheet generated for 1.OA.C.6 is reviewed against these question patterns to ensure proper alignment.
From a one-line prompt to a printable PDF with answer key.
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