Hello and some help for a newb

Question

Howdy all, I'm fairly new to C# and am in need of some advice on a project I've started working on. I'm trying to create a functioning calculator (similar to the one that comes with windows) yet only used the add/subtract/multiply/divide and decimal functions. I have the form already designed including the 0-9 buttons, the equal button, a button to clear the label(s) as well as buttons for the functions mentioned above. So far I've declared class level variables for the 0-9 buttons, and each button's click event displays the correct number in a label. Now I'm at the part where I need to code for the add/subtract/multiply/divide/decimal/equal buttons. Should I be creating separate methods for each of these functions? Also, once you click a number button and then you click one of the add/subtract buttons etc., should the first number I entered be stored in an invisible label to be included in a calculation later? I just haven't got down the logic behind doing this yet. PS I am using MS VisualStudio.Net 2003 and I can email a zipped version of the project if anyone wants to take a look at it and add code for me to review. Thanks!