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Dozenal Society of America
Promoting base twelve and alternative base mathematics
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The Dozenal Society of America
The DSA is a voluntary, nonprofit education corporation, organized for the conduct of research and education of the public in the use of dozenal (also called duodecimal or base-twelve) in calculations, mathematics, weights and measures, and other branches of pure and applied science.

Featured Figures: Basic Operations

Title: Featured Figures: Basic Operations
Author: Michael deVlieger
Year: 11E4
Subject: Dozenal addition and multiplication tables.

Inaugural edition of "Featured Figures"; dozenal addition and multiplication tables.