A collection of puzzles adds a mathematical twist to challenge addicts even more, and includes a time limit so puzzlers can try to beat the clock as well. Original. Additional Details \N AUTHOR : NOT AVAILABLE (NA) BOOK TYPE : NF DEWEY CLASSIFICATION : 793 LANGUAGE : ENGLISH NUMBER OF PAGES : 65 PUBLISH DATE : 2006/02/01 PUBLISHER IMPRINT CODE : AVONA PUBLISHER NAME : HARPERCOLLINS RETURNS ACCEPTED? : YES SKU : 9780061126475 UPC : 9780061126475
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