Logic — math, philosophy & computational aspects

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06
Feb

Mental Math

I am looking for a really good book for speed calculating, but there seems to
be so many.  Any recommendations?

               -Russell (Russ…@aol.com)

Comments (2)




2 Responses to “Mental Math”

  1. admin says:
    February 6 at 8:49 am

    Look up the "Tractenberg Method"

  2. admin says:
    February 6 at 8:49 am

    CMoel888 wrote:
    > Look up the "Tractenberg Method"

    Any on-line resources for this or other speed calculation techniques?

    Thanks,

    ..matthew

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