### Basic Excel Math Formulas: Add/Subtract/Multiply/Divide

#### Basic Excel Math formula

Excel is basically one big calculation machine. And as one, it enables you to perform many kinds of calculations.

Let's begin with the very basic ones. Here is how you create an **addition** formula:

Select a cell, and type in '=4+5' (without the quotes).

In this case, the formula adds two constants (4 and 5) and the result of this formula (which is displayed in the cell itself) is 9.

It will always be 9; it won't be affected by changes in other cells or if we enter it into a different cell.