Kalculate 1.2.0.0 - Windows Phone 7.5 - Free App by Kompete Labs, LLC

Kalculate is an online math game with a very simple goal: Compete against the rest of the world to answer as many questions and earn as many points as you can during each round.

There are multiple game modes available to play, varying in the level of difficulty, and the types of questions you will be asked. If you don't know where to start, try the speedway, which has the most basic math problems.

In the game, each player receives the same list and ordering of questions. At the end of each round, you will see your ranking on the leaderboard along with everyone else around the world that was playing at the same time.

If you don't feel like competing or just want to sharpen up your skills, there's an offline mode where you can play alone.

Now you're ready to earn points and climb the leaderboards!