Subtraction by partitioning

Posted on December 4, 2012 by S Cripps
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2 Responses to Subtraction by partitioning

  1. B Temuna says:
    December 7, 2012 at 9:32 pm

    I say 27

  2. kelsey t lillie s says:
    December 22, 2012 at 10:00 pm

    we think we know the anser

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