I just got my first review for Math Trainer!
It was from Will at DroidIdols (www.droididols.com)
You can read the review here:
http://www.droididol.com/applications/math-trainer-2
I agree with Will on all the criticism he had about the game (although users are no longer asked if they'd like to see the help before starting a new game).
DroidIdols is a site with normal reviews but each sunday they also have a small contest where they announce the best app of the week that they've reviewed. Be sure to check their site out.