In addition to the thirty-six numbers, the American roulette features 2 green slots that have 00 and 0 written on them. They are located on the opposite sides of the wheel. Compared to the European roulette, the distribution of regular numbers is different, that is they run counterclockwise.

American Roulette Rules

Players are supposed to accurately guess the correct number which the ball is going to land on after the spin. There are different types of bets to choose from, and each one of them has a different pay, with the best wagers being the hardest to win.
The rules dictate that players should place their bets before the ball drops, but it's also possible to wager when the wheel is in motion. The dealer is the one who calls off the betting phase, and once the ball comes to a halt in its final place, the winner is paid and then a new round kicks off. It's the dealer’s sole duty to clear all the losing bets and to lift the marker from the winning number.
There are also other additional American Roulette rules, there're some what've to do more with Roulette etiquette, but even though they're unwritten, they are just as important. For instance, people who're only watching the game aren't allowed to sit at the seats immediate to the roulette table, the dealer is supposed to kindly ask them to give room for the players. Those who are playing, are supposed to place their bets quickly without interacting with their peers so that all players can wager prior to the dealer calls of “no more bets.”

Roulette odds and bets

When the player purchases chips from the casinos cashier, he is given the freedom to bet on any number, betting areas or group of numbers. The only limitation is that they've a limited time to do so and in land-based casinos, where lots of people use one table simultaneously, the time can be a little bit less due to the crowd. 
The dealer can also be of assistance to the player if his asked to assist in placing bets, but at times he gets overwhelmed by the numerous similar requests. On the other hand, the guide to American Roulette on-line is a little bit different because they decide when the wheel should start spinning. 
Basically, there are 2 categories of roulette bets, which are inside bets and outside bets. 

Outside Bets

This is the most popular roulette bet, it pays with money and allows players to bet on colours or numbers. If the player wins, he will maintain the initial state and receive the same amount. Even or Odd have similar payout ratio.

Inside Bets

In this case, the odds of winning are minimal, but the potential profits are boosted. Gamblers bet on a single number and if in case they win, the payout will be 35 to 1. 

American roulette is good in that experienced players and beginners have equal chances of winning and still it has rules which are easy to pick up.