Every kid can go on a fun math adventure! Come along with the wizard's apprentice as he guides you through a very special castle. There you'll discover powerful potions, secret passages, mazes, and more. But it seems the apprentice needs a little help remembering his magic formulas. Using a little addition, subtraction, multiplication, division, and other math skills, fourth-graders can save the day! Through this combination of storytelling and entertaining activities, even reluctant learners can grasp basic mathematical principles and begin to love the world of numbers. Each book has colorful stickers to place on the pages. An addition to the bestselling Flash Kids line of books.