Life of Fred: Zillions of Practice Problems (Decimals & Percents)

This book is keyed directly to Life of Fred: Decimals and Percents.  Each of the 33 chapters contains both exercises on the current topic and review questions from the beginning the book up to that point.  The problems are fun with lots of stories about Joe and Darlene (and a history of making pencils; Jelly Bean Rallies; and using Ralph's perfume to clear clogged drains).