This is the fastest and easiest coin practice game you will ever image: print out the coin cards twice, cut and shuffle. Place between two partners. One card is turned over and the two partners call "salute." They each put a card on their own forehead, then add their partner's card to the one showing between them. They call out the answer, then they have to figure out what card is on their own heads based on that information.
Comes in basic, hard, muy hard and mas hard!