This interactive book for 3rd grade math is a valuable learning tool for young adults. The Quantum Leap Pad Interactive Book comes with a dry erase maker and cartridge, and Parent Guide (shows wear) making it easy to practice math skills. The spiral bound book has 24 pages and is published by LeapFrog Enterprises, Incorporated. Fundamentals Series. Ages 8 and up. Place Value, Comparing, Ordering Whole Numbers, Adding, Subtracting, Money, Fractions, Multiplication, Division, Multi Digit, Measurement, Geometry, Probability, Graphing, Time and Rounding and Estimating. State and National Educational Standards.