Every Jamestown's Number Power book targets a particular set of math skills with straightforward explanations, easy-to-follow, step-by-step instruction, real-life examples, and extensive reinforcement exercises. Use these texts across the full scope of the basic mathematics curriculum, from whole numbers to pre-algebra and geometry. Skills-Correlated Number Power books cover basic computation to the fundamentals of algebra and geometry and other math skills needed for taking standardized tests. Books include evaluation and skills correlation charts to track progress in mastering math skills.