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-647e3f08ef727123074698/]   You have to paste the  below Codes 1 to 0 buttons [crayon-647e3f08ef72e245096479/] Paste the following codes to +,-,*,/  button [crayon-647e3f08ef730098288156/] Paste the following …