In this tutorials will teach how to make a calculator in C#.net windows form application step by step. How to create the calculator in C#.net application in best coding practice. First Step Declare the variables [crayon-64723cbc89067329087495/]   You have to paste the  below Codes 1 to 0 buttons [crayon-64723cbc8906c981802493/] Paste the following codes to +,-,*,/  button [crayon-64723cbc8906e662089404/] Paste the following …