move the yellow tiles piece ad place them o the free spots.

It's a fun and original puzzle game, a mix of crosswords and math equations.
You must solve the equations with additions, multiplications, soustractions and divisions.
If your equation is correct, the line will change to green. if it's incorrect if will change to red. If it is incorrect, move the pieces until all the board becomes green.
This game has a lot of levels and you can choose between several difficulty modes, from novice to insane levels !