[header] How to add two numbers in visual basic [title] Define the 2 numbers to be added as constants or variables. [step] In order to add 2 numbers in visual basic, you need to first set up the program to recognize them as values. Programmers can do this either by defining the numbers as constants or variables. 
Variables are much desired over constants for many reasons, mainly because they can be changed throughout the program's implementation. For example, a variable can be changed by a user entering a number in a visual text box, where a constant cannot.