Math Magic How to Master Everyday Math Problems Revised Edition (Paperback) ISBN-13: 9780060726355 ISBN-10: 0060726350 Genres: Reference, Science & Math 2 Math Magic the Human Calculator Shows How to Master Everyday Math Problems in Seconds (Hardcover) → Paperback ISBN-13: 9780688104764 ISBN-10: 0688104762 Genres: Reference, Science & Math ? |