Hop on a double-decker bus and join a family on their adventure through the city! They'll use addition to count taxis and to compare the cost of riding the subway for the day and the week. They'll drive in a car, ride an escalator, take a ferry, and more. This math book makes learning addition fun, easy, and relevant. With vibrant photos, math charts and diagrams, grade-appropriate text, and informational text features to help navigate the text, students will use real-world travel examples to learn addition and practice their STEM skills.