Math Game - Thirty Seconds II

be super focused in a short amount of time.
Challenge yourself to Thirty Seconds of intensive concentration.
Test yourself to see how many math problems you can solve in 30 seconds.
And push yourself to the limit.
Complete with people around the world.
The more you train your brain to concentrate, the younger your brain will be.

In this series, try to click on the number increasingly to the highest number possible within 30 seconds.

Compete with other challengers around the world to see who has the fastest mind!
The victory hangs in just 30 seconds.
There is no time for your mind to wander, only time to focus on the problem.
The next problem is given to you as a preview for faster problem solving.