You will find more addition and subtraction games here as well as many other math games. There is version of this game with numbers to 9 that can be found here.
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The resources listed below are aligned to the same standard, (2OA02) re: Common Core Standards For Mathematics as the Addition and subtraction game shown above.
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.