Audisee® eBooks with Audio combine professional narration and text highlighting for an engaging read aloud experience! Math is everywhere when you''re traveling! See who''s on the move inside this book—and how we need math to finish the trip! You''ll need your math smarts to calculate time, distance, and speed, choose the best route and type of transit, figure out time zones, plan travel expenses; and more. It all adds up to a lot of fun!