Default [GAME][3.0+] Math Frenzy!

Hi everyone! I have recently finished developing my second Android app and first game.

It's a fairly simple math puzzle game, letting you race against the clock to answer as many equations as possible.

-Correct answers add time, and incorrect answers subtract time!
-There are leaderboards and achievements for both high scores and high streaks!
-Free to download. There are ads in the game, and I'm not sure if that violates policies for posting it here. If so, and anyone would like to try the game still, I would be glad to supply a direct download link without ads.
-I'd love to hear any feedback, thoughts, or criticisms on the game!