Number Balls will be a rational free educational game for those who want to test their math skills! Do you have any troubles with plus numbers, minus numbers and their others? Then this game will never escape your experience, right? In the game, there will be lots of balls containing various numbers, and they are moving around, which can make you get dizzy a little bit. You need to click on all of them with ascending orders as fast as possible to earn higher scores. The difficulty will increase gradually, so stay focused on it!