Amazing! The greatest Maths Magician ever!
Arthur Benjamin: Lightning calculation and other “Mathemagic”,
This video from TED showing Arthur Benjamin in action is absolutely amazing and shows how far we can push our brains if we practice hard enough. I showed this to my classes and set it as a challenge to the learners to learn these tricks, several came back and performed to the rest of the class. This shows that with practice anyone can perform these tricks