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  1. 1

    Secrets of mental math the mathemagician's guide to lightning calculation and amazing math tricks by Benjamin, Arthur

    Published 2006
    Table of contents only
    Book

    Secrets of mental math the mathemagician's guide to lightning calculation and amazing math tricks
  2. 2

    Mental math by Mariano, Ma. Luisa

    Published 2004
    Book

    Mental math

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