Your computer is actually a big calculator. Whether you're listening to music, watching a movie or playing a video game, your computer only do calculations. This article will teach you to make the most of the calculations a computer can do. We will reuse what we have just learned, namely variables. The idea is just to make your calculations with variables: these variables add, multiply, store the result in another variable, etc.. Even if you're not a fan of math, this article will be absolutely essential.