Disney Magic Math Machine Author:Disney This novelty format serves as a clever math-learning tool. Each spread features a variety of illustrated addition and subtraction math problems that children can solve using their companion Magic Math Machine. Add or subtract the illustrated objects, do the math, then flip the Magic Math Machine to check the answer. Perfect for on-the-go learnin... more »g, Disney Magic Math Machine is a tool that delivers hours and hours of learning fun.« less