Roulette numbers form the foundation of this classic casino game, with the standard American version featuring 38 numbered pockets （1-36, plus 0 and 00） while European roulette contains 37 numbers （1-36 plus a single 0）.
The arrangement of numbers on the roulette wheel follows a specific pattern designed to create balance between red and black, odd and even, and high and low numbers. This mathematical arrangement ensures random distribution and fair gameplay. 
Each number carries different payout odds, with single number bets paying 35:1 while covering multiple numbers reduces the payout accordingly. Understanding the probability associated with each number grouping is essential for strategic betting.
The green-colored zero （and double zero in American roulette） gives the house its edge, as bets on red/black, odd/even, or high/low lose when the ball lands on these numbers. |
