Number keys are the keys on a keyboard that represent numerical digits from 0 to 9. They are typically located at the top of the keyboard, above the letter keys, and can also be found on the numeric keypad, which is a separate section on the right side of many keyboards. These keys are used for entering numbers in various applications, such as spreadsheets, calculators, and programming. In addition to standard number keys, some keyboards feature special number keys that allow for quick access to functions like addition, subtraction, multiplication, and division. These keys enhance productivity, especially in tasks involving calculations. The numeric keypad is particularly useful for data entry and is commonly used in professions that require frequent numerical input, such as accounting and data analysis.