MATH.CONTENT – Operations & Algebraic Thinking – 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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MATH.CONTENT – Operations & Algebraic Thinking – 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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