Wednesday, September 18, 2013

Addition/Subtraction Concepts

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2 comments:

  1. UnknownSeptember 18, 2013 at 12:12 PM

    Very different way of looking at addition & subtraction!

    ReplyDelete
  2. Abby HawkinsSeptember 18, 2013 at 6:22 PM

    I think the video helped me know more about
    MATH. :)

    ReplyDelete

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