Instead of typing numbers directly (e.g., =10+5 ), it is best practice to use cell references (e.g., =A1+B1 ). This ensures the result updates automatically if the values in those cells change. Essential Functions for Every User Overview of formulas in Excel - Microsoft Support

are custom equations you create yourself to perform calculations, such as =A1+B1 .

Microsoft Excel is built on the power of and functions , which allow users to perform everything from simple math to complex data analysis. While often used interchangeably, they represent two different ways to manipulate data: