When Olympic swimmer Michael Phelps won a race by .01 of a second, we saw how significant a hundredth of a second can be! This series offers practice with decimals to build a solid understanding of the place value system.

Students familiarize themselves with pre-algebra concepts and vocabulary — including factors, base numbers, exponents, variables, and value — in this introductory overview. This workbook offers plenty of hands-on practice so that students can