Hi! Let's learn, how to add in Excel.
How much is 2 + 2? Everybody knows. How to add it in Excel? You have to write =2+2 and click ENTER button.
There is also the other possibility. This is the SUM function:
=sum(number1;number2;...)
Excel is quite smart application. You can add numbers much faster. It's AutoSum. You can find AutoSum button on the Excel's Ribbon.