挑战你的加入速度和听力，视觉技能这个简单的数学游戏。
SUM TEN PRO is a simple number game where u have to add ten random numbers that appear one after another with a specific time delay between two numbers,then enter the answer and move to the next stage where the time delay decreases. Isn't that simple??
IT ACTUALLY IS DIFFICULT THAN IT SOUNDS.. with the different sounds and visuals you'll know when you take on the challenge.
DOWNLOAD NOW AND TAKE THE CHALLENGE.
BONUS: This app does not have ANY ADS.