My World of Numbers

0,1,2,
Guess what we do?
3,4,5,
Two numbers on each side.
6,5,4,
We join up on the floor.
3,2,1,
Every game is good fun!

My small box is maroon with scratches on it,
There are lots of pieces in this kit,
I open the box, a world of numbers swarms around,
I take one step, and listen for the sound
Of my dominoes rattling along the ground.