1 to 1 for a red/black bet, 35 to 1 for a straight number bet), and so the presence of an extra green number only decreases your odds of winning. The bets and payouts in each game are exactly the same (e.g.
This is all thanks to that additional 00 number. The house edge in American roulette is almost double that of the house edge in European roulette.
European roulette has the optional en prison rule.Honestly, if you just took the 00 away from an American roulette table you would be left with a European table (almost). The single biggest difference between these two games is that American roulette has an extra 00 number. Notice the extra green 00? What are the differences?