👉 Retained math refers to the application of mathematical concepts and principles learned in school that remain useful throughout one's life, even beyond formal education. This includes problem-solving skills, understanding of basic algebra and geometry, statistical reasoning, and logical thinking. For example, knowing how to calculate percentages or understand ratios from high school can be invaluable in everyday situations, such as budgeting, cooking, or interpreting data. These skills are retained because they form the foundation for more advanced mathematical topics and real-world applications, making them essential for personal and professional growth.