This 3-panel ''Quizzers'' edition of BarCharts' Pre-Algebra guide is guaranteed to bring about the higher grades you've been seeking! Everything you love about the original guide is contained in this comprehensive, jam-packed edition-from key definitions and sample problems to fully detailed charts and diagrams; what's new is a set of questions and answers on the back that quiz you on what you've studied so far. It's an ideal reference tool for students and teachers alike.