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ERIC Number: EJ417303
Record Type: Journal
Publication Date: 1990
Pages: N/A
Abstractor: N/A
ISBN: N/A
ISSN: ISSN-0025-5769
EISSN: N/A
Casting Out Nines: An Explanation and Extensions.
Lauber, Murray
Mathematics Teacher, v83 n8 p661-65 Nov 1990
This article explains how this method is done, examines some reasons for including it as a topic in mathematics curricula, and uses modular arithmetic to explore its mathematical basis and its generalizability to computations in bases other than 10. (CW)
Descriptors: Arithmetic, Computation, Learning Activities, Learning Strategies, Mathematical Concepts, Mathematics Curriculum, Mathematics Education, Mathematics Instruction, Secondary Education, Secondary School Mathematics, Teaching Methods
Publication Type: Journal Articles; Guides - Classroom - Teacher
Education Level: N/A
Audience: Teachers; Practitioners
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A