Showing 1 - 10 results of 11 for search 'Ashlock, Robert B. 1930-', query time: 0.09s Refine Results
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    Error patterns in computation by Ashlock, Robert B. 1930-

    Published 1998
    Book
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    Error patterns in computation by Ashlock, Robert B. 1930-

    Published 1994
    Book
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    Current researh in elementary school mathematics by Ashlock, Robert B. 1930-

    Published 1970
    Book

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