Showing 1 - 4 results of 4 for search 'Patilla, Peter', query time: 0.01s Refine Results
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    Adding by Patilla, Peter

    Published 1990
    Book

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  2. 2

    Subtracting by Patilla, Peter

    Published 1990
    Book

    Subtracting
  3. 3

    Multiplying by Patilla, Peter

    Published 1990
    Book

    Multiplying
  4. 4

    Dividing by Patilla, Peter

    Published 1990
    Book

    Dividing

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