Arithmetic Teacher (1988-1989) Vol. 36, No. 9
Addison-Wesley Mathematics Addison-Wesley Matlrematlcs A T'Y Addison-Wesley The Mathematics Publisher Addi on-We ley Publishing Company, 2725 Sand Hill Road, Menlo Park, California 94025, 415/854-0300 or 800/533-4075 The ARITHMETIC TEACHER is an official journal of the National Council of Teachers of Mathematiccs It is
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