add and subtract poster

Posted on October 5, 2016 by Deleted User
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2 Responses to add and subtract poster

  1. ochor says:
    October 6, 2016 at 12:45 pm

    WOW!!!! Ondine this is really good! I think this will really help other people who don’t know how to do column additon and subtraction! From Ruthann

  2. miatv says:
    October 6, 2016 at 7:53 pm

    This is great!It can really teach other people

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