What's Special About This Number?
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|Erich's Puzzle Palace; Erich Friedman|
|A list of the integers from zero to 9,999, each annotated with one significant mathematical property and color-coordinated by that property's category.|
|Levels:||Middle School (6-8), High School (9-12), College|
|Math Topics:||Number Sense/About Numbers|
The Math Forum is a research and educational enterprise of the Drexel University School of Education.