Modular Arithmetic in the Marketplace.

Gallian, Joseph A.; Winters, Steven

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Peer reviewed

ERIC Number: EJ382902

Record Type: Journal

Publication Date: 1988

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Modular Arithmetic in the Marketplace.

Gallian, Joseph A.; Winters, Steven

American Mathematical Monthly, v95 n6 p548-51 Jun-Jul 1988

Several schemes use modular arithmetic to append a check digit to product identification numbers for error detection. Some schemes are discussed, including ones for money orders and library books. Then a foolproof method is presented. (MNS)

Descriptors: College Mathematics, Error Patterns, Higher Education, Mathematical Applications, Mathematics Instruction, Number Concepts

Publication Type: Journal Articles; Guides - Classroom - Teacher

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Language: English

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