Description du livre
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.