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Standard
2.OA.2:
Fluently add and subtract within 20 using mental strategies.2 By end of Grade 2, know from memory all sums of two one-digit numbers.
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Previous Standards Versions
Prekindergarten - Eighth Grade
Grade 2
Operations and Algebraic Thinking
Add and subtract within 20.
Fluently add and subtract within 20 using mental strategies.2 By end of Grade 2, know from memory all sums of two one-digit numbers.
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