Gray, Merle

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  • Modern arithmetic through discovery

    Morton, Gray, Rosskopf

    Silver Burdett c1964 Teacher's ed

    Bk. 1 , Bk. 2

    Available at 1 libraries

  • Making sure of arithmetic

    Robert Lee Morton, Merle Gray

    Silver Burdett c1957- Teacher's ed

    bk. 1 , bk. 2 , 3 , 4 , 5 , 6 , 7 , 8

    Available at 2 libraries

  • Making sure of arithmetic

    Robert Lee Morton, Merle Gray

    S. Burdett c 1952- Teacher's ed

    book 1 , book 2

    Available at 1 libraries

  • Making sure of arithmetic

    by Robert Lee Morton, Merle Gray ; illustrated by Milo Winter, Fred Collins, Paul Wenck, and others

    Silver Burdett c1946-

    Grade 1 , Grade 2 , Grade 3 , Grade 4 , Grade 5 , Grade 6 , Grade 7 , Grade 8

    Available at 15 libraries

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