The term "12-15" typically refers to a range of numbers, specifically from twelve to fifteen. This range can be used in various contexts, such as age groups, quantities, or measurements. For example, in education, students aged 12 to 15 are often in middle school or early high school. In mathematics, "12-15" can also represent a simple subtraction problem, where 12 is subtracted from 15, resulting in 3. This range is often used in statistics to categorize data or in surveys to group responses. Understanding this range is essential for various applications in everyday life.