books.google.com - Everyday math for everyday people Finally, a common sense reference for math! Portable and very affordable, the Basic Math Refresher is the useful, practical, and informative way to understand all types of math fundamentals. Never worry about math again! Clear, concise entries by author Stephen Hearne...http://books.google.com/books/about/Basic_Math_Refresher_REA.html?id=a6VpBPBw5WEC&q=set+of+scores&utm_source=gb-gplus-shareBasic Math Refresher (REA)