How is math applied in video games

You will see math while making a game but, not really while playing it. By the way to the guy below me I do think it is better to do raw coding then buttons because you get more experience and it's more fun, to see how every code you type becomes something.

Everywhere. Your score requires a formula to add, x and y axis to locate your character and z axis in 3-d games. On pressure sensitive games the depth of the button into the controller is multiplied by some number to equal speed. I suggest you go to www.gamemaker.nl and download Game Maker by Mark Overmars and try to make your own, it becomes very obvious very fast once you get into raw coding (which is sadly easier sometimes than using pre-made buttons).