A free app for Android, by Triode Projects.

What is the Math Challenge Pro app? It is a math game app that teaches you different math challenges and games that are based on mental arithmetic. You will have to answer the questions as fast as possible, and you will get a score based on how fast you answered. If you answered correctly, you will get a multiplier, and you will get a higher score. The higher the score, the higher the level you are on the leaderboard. You will be able to compete with other players by answering the questions in the fastest time.

If you answered incorrectly, you will not get any points, and you will be on the bottom of the scoreboard. You can answer as fast as you can, and you can use your speed to answer the questions.

The game consists of four different modes. The first mode is the easiest one, where you will just have to add and subtract numbers. The second mode is the most difficult, where you have to add, subtract, and divide numbers. The third mode is similar to the second mode, but in this mode, you will have to use a stopwatch to find the correct answer. The last mode is the hardest of all, where you will have to use a stopwatch and a calculator to find the correct answer.