The most elementary way to do this is to type in the mathematical expression for adding two numbers in a cell. Start by putting an equal sign which will tell Excel youre making a formula. For example click on the cell A2 with the mouse pointer and enter.
The equal sign goes in the cell where you want the answer.
An addition formula using the plus sign subtraction formula using the negative sign - a multiplication formula using an asterisk sign and division formula using the slash. Start by putting an equal sign which will tell Excel youre making a formula. For example to round the result of A1 divided by B1 you can use a formula like this. A step-by-step example of creating a division formula in Excel using point and click.