This math game requires you to do the simple arithmetic, but must quickly and accurately. Suitable for computing power train and observe fast on the mobile devices.
The operation will fall like "math raining" from the top down with formulas and the selection of results. Take a quick tap on the right result. If you tap the wrong one or you are not fast enough, the numbers are falling to the bottom edge of the screen, it is the end of the story! Play again.
How fast you? Try it!