System:Nintendo DSRelease Date:
May 15, 2009
No. of Players:up to 4 playersCategory:
Publisher:Oxygen GamesDeveloper:TDK Core
Relax, play & improve your mind
Two card based math games, Hidden Logic and Formulate make up Challenge
Me: Math Workout. Improve you skills & have hours of fun, either playing
on your own or against friends with single card download play!