Scratch

Variables are used as a place to store text or numbers in. You know how some games can keep your score? You'd use a variable to keep track of it.

You could do something like this:

This would make your score go up really fast, like in a survival game. You can also make it start at 0 and only go up when certain things happen.

That's not the only use of variables. You can use them for almost anything that uses a number, or even text. Plus, they're really easy to change, so you'll find them useful.