Final answer:
Excel displays an error value such as #REF!, #VALUE!, or #DIV/0! when there is an issue with a formula entered into a cell.
Step-by-step explanation:
Excel indicates when a formula you have entered results in an error by displaying an error value in the cell. These error values can be different depending on the type of error, such as #REF!, #VALUE!, or #DIV/0!. Understanding these error messages is crucial in identifying what went wrong with the formula and how to fix it. Excel provides a variety of tools and features to diagnose and correct these errors, like error checking prompts and formula auditing tools.
When encountering these error messages, it's important for students to utilize Excel's help and troubleshooting features or engage with further educational resources to better understand the error and how to resolve it. Engaging in personal exploration and seeking to comprehend the nuances of any caution symbols or call-out boxes can enhance a student's understanding of Excel and its functions