Teaches how digits work -- but makes it fun!
Designer: (Uncredited)
Publisher: (Public Domain), Dover Publications, dtv (Deutscher Taschenbuch Verlag), Hugendubel Verlag, Hutchinson, Random House, Inc.
Hekaton is a card game that Sid Sackson published in his book A Gamut of Games.
Hekaton is a game of addition for two players or two teams of two players. Hands of twelve cards are dealt from a 50-card deck containing five each of the digits 0 through 9. Players then take turns playing cards. When a player is able to arrange all digits on the table as a sum that adds up to a multiple of 100, she scores that number of points and removes the cards from the game. The first player or team to score 10,000 points wins.