This self-teaching workbook offers extensive preparation and brush-up in math for all who plan to take the GED High School Equivalency Test. A diagnostic test with answers is presented to help test takers assess their strengths and weaknesses. The math review that follows is supplemented with hundreds of exercises. All GED math topics are covered, including measurement, geometry, algebra, number relations, and data analysis. Four practice tests with answers reflect questions and question types found on the actual GED.