Amazing number properties and relationships
Arithmetic entertainments and novelties
Arithmetic loops
Geometry surprises
Mathematical nuggets : amazing, but true!
Appendix. List of triangular, square, and cubic numbers.
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Mathematical amazements and surprises : fascinating figures and noteworthy numbers by Alfred S. Posamentier. ISBN 9781591027232. Published by Prometheus Books in 2009. Publication and catalogue information, links to buy online and reader comments.
