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Peer reviewedArcher, J. Andrew – Mathematics Teacher, 1980
An algorithm for multiplying natural numbers is described. The algorithm provides a chance for some unusual drill and might serve as an enrichment topic. (MK)
Descriptors: Algorithms, Mathematical Enrichment, Mathematical Formulas, Mathematics Instruction
Peer reviewedMarkowitz, Lee M. – Mathematics Teacher, 1983
Variations on a card trick are noted, with a formula for generalizing them. Another trick which can be proved with algebraic principles is then presented. (MNS)
Descriptors: Algebra, Algorithms, Games, Learning Activities
