There are various bets you can make on a roulette table. You can choose to bet on individual numbers, small groups of numbers, or even/odd and high/low numbers. All of these bets pay out a different amount if they win.
A roulette wheel has thirty-six compartments that alternate red and black, plus a green division that is numbered 0. On American tables, there is an additional green 00.
Origin
The origin of roullete is a mystery. While some theories claim that the game was invented in 17th-century France by mathematician Blaise Pascal, others point to its Chinese roots or to Dominican Monks who brought it to Europe with minor modifications. What is known is that the game spread quickly and became popular throughout Europe. It eventually made its way to America and is now one of the most popular casino games. A roulette wheel is a spinning disk with 38 (or 37 on European/Latin American tables) numbered divisions. A ball is rolled against the numbers on the wheel and players place bets on which number the ball will land.