Players%20randomly%20slot%20ten%20cards%20on%20their%20rack.%20The%20race%20then%20begins%20to%20draw%20and%20discard%20until%20one%20player%20positions%20ten%20cards%20in%20numerical%20sequence.%20Sound%20simple%3F%20It%20is%20but%20you%20will%20need%20skillful%20play%2C%20concentration%20and%20just%20a%20little%20luck%20to%20win.Ages%3A%208%20and%20upPlayers%20%3A2%20to%204Contents%3A%20Deck%20of%2060%20Rack-O%20playing%20cards%2C%204%20Plastic%20Card%20Racks%20and%20rules.