CCSS.Math.Content.2.OA.B.2

Add and subtract within 20. Fluently add and subtract within 20 using mental strategies. By end of Grade 2, know from memory all sums of two one-digit numbers.

Adding and Subtracting Temperature and Weather
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Fluently add and subtract within 20 using mental strategies. CCSS.Math.Content.2.OA.B.2

Home Spelling Words - Home Spelling Website

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