Math Challenge - King Math is a free educational math game for Android users that helps improve mathematical skills. It is designed for both kids and adults to practice basic arithmetic operations such as addition, subtraction, multiplication, and division on positive and negative numbers. The game has 30 levels with increasing difficulty, and players can compete with each other by ranking their scores on the leaderboard. In addition, players can learn basic math operations on two or three arguments and earn achievements while playing.

The game is easy to use and provides an excellent brain workout for kids and adults. The score of the player is the sum of points from all levels, and the game is perfect for those who want to improve their math calculation speed. Parents and teachers can also send information to each other through Gmail, SMS, Facebook, or Twitter to track the progress of their children or students.