Things you can try: Subtraction by the “dribble method”

Most of us have spent some time since our public school days developing shortcuts—labor-saving ways of looking at things—most of which find no place in form al instruction.

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Bibliographic Details
Published in:The Arithmetic teacher 1971-05, Vol.18 (5), p.346-351
Main Author: Hamilton, E. W.
Format: Article
Language:English
Online Access:Get full text
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Description
Summary:Most of us have spent some time since our public school days developing shortcuts—labor-saving ways of looking at things—most of which find no place in form al instruction.
ISSN:0004-136X
DOI:10.5951/AT.18.5.0346