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References
1.Flannel-Board Fractional Parts . Springfield, Mass. : Milton Bradley Company .
2.Sets and Numbers. Patrick Suppes . New York, N.Y. : L.W. Singer Publishing Company, Division of Random House . 1966 .
3.Shea Arithmetic Essentials Test. James T. Shea . Austin, Texas : Steck-Vaughn Company, Publisher , 1952 .
4.Structural Arithmetic. Catherine Stern, Margaret Stern, and Toni Gould . New York, N.Y. : Houghton Mifflin Company , 1967 .
5.Working with Numbers. James T. Shea . Austin, Texas : Steck-Vaughn Company, Publisher , 1952 .