To trade is to buy, sell, or swap goods and services. You probably take part in trade every day. Whether swapping baseball cards or buying lunch at school, trade is a daily part of life for people around the world. With vibrant photos, math charts and diagrams, grade-appropriate text, and informational text features to help navigate the text, students will learn practical, real-world applications of math skills as they learn number patterns and build their STEM skills.
