I was lucky to have the opportunity to guest post for Raki's Rad Resources last week. I told about a few games that can be played using a regular deck of cards, that can be used to develop mastery of basic addition and subtraction facts, and work on this standard from the Common Core: 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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