Readers have fun with math as they work their way through this series of number puzzles and other activities that deal with calculation skills. Readers are able to select the appropriate activities for their comfort and skill levels using a unique color-coding system. They can also assess their progress independently using a helpful answer key. The vibrant design of this volume features colorful illustrations and a wide variety of activities to appeal to different interests. Readers are sure to enjoy this illuminating example of the ways math can be used beyond the classroom.