Fast Calculating is a math game that tests how fast you calculate. The questions consist of addition, subtraction, multiplication and division operations. How to play? For each question, the time given for you to answer is 15 seconds. You must type (not choose) the answers. In every level, you are prohibited to give incorrect answers three times. If you aren't able to answer until time out, the app will show you the correct one. It will also give you a comment every time you just answered. At the end of this game, you can tell (share) your accumulated score to your friends and challenge them to play. Just enjoy! Let's play with numbers!