What does 1st and 12 mean in roulette?

[kayode10]

It can be very exciting watching roulette again in the game house with other people. roulette involves different tricks and thinking out of the box in order to win consistently. But I usually hear 1st and 12 when they are playing the game.

The question I want to ask you guys is that What does 1st and 12 mean in roulette? I want someone to enlighten me on this thanks in advance.

 

[Samuel purpose]

This bet covers a dozen numbers, too. But, in order: 1st 12 – This covers the ball landing on numbers 1-12. 2nd 12 – This covers the ball landing on numbers 13-24. 3rd 12 – This covers the ball landing on numbers 25-36.