Here's a fun little 5 minute brain break that will make you look like you have psychic powers! It's a quick little math trick where a student thinks of a number between 1 and 60. After a few minutes of exaggerated concentration, you tell them the number they were thinking of. It is a self-working trick, you just use basic mental addition.
You can decide whether you want to keep it a secret, or explain how it's done, and let some of the students be the "magician"!
As I always try to do, I've included a color version, and a Black and White version.