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Kolb, John R. – Mathematics Teacher, 1982
Several subtraction algorithms are analyzed to see if they involve borrowing. The main focus is on an analysis of a procedure called the residue method. The operational arithmetic which underlies the symbolic manipulations is examined and conditions where the method does and does not use borrowing are highlighted. (MP)
Descriptors: Algorithms, Arithmetic, Computation, Elementary Education
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Olson, Melfried; Olson, Judith – School Science and Mathematics, 1988
Describes a pattern which emerged from an examination of the digits of the squares of numbers. Provides eight examples having the pattern at the units or tens digit of the number. (YP)
Descriptors: Algorithms, Arithmetic, Elementary Education, Elementary School Mathematics
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Smith, Michael S. – Arithmetic Teacher, 1981
Three alternative methods of finding averages of two numbers are presented. (MP)
Descriptors: Algorithms, Arithmetic, Basic Skills, Computation
Palmer, Don; And Others – 1994
This book provides a comprehensive collection of 66 teaching strategies and ideas to help overcome problems with number, each linked to a specific kind of error described in the related manual. Most of these strategies are classroom-ready and easily implemented. Some are notes for the teacher to read and then plan activities accordingly, and many…
Descriptors: Algorithms, Arithmetic, Educational Diagnosis, Elementary Education