Players draw tiles and lay down equations, starting in the center, and continue until no player can lay another tile, the same as in Scrabble. However, there are situations that do not occur in Scrabble, for example while you can extend equations, e.g. by putting 1x4 in front of 4x5=20 to form 1x4 = 4x5 = 20, you can not put 4x5 in front of 4x5=20 to form 4x5 = 4x5 = 20. The immediate right hand side of each part of the sequence must be correct by itself.
A typical first play follows as: