I am Leo Ramirez. During my coaching career at McAllen High School, my teams won 20 State UIL or TMSCA team championships in Number Sense/Calculator. I have numerous practice tests and workbooks to could assist you in preparing for Number Sense, Calculator Applications, Mathematics, and Science. My newest workbook is the 2002 - 2004 High School UIL Number Sense shortcuts workbook. If you want an order form or more information, check my web site at www.homepage.mac.com/leorami