Flash mental arithmetic is to calculate mentally.
For example,
"+1" is displayed quickly, so flash.
And "+5", too.
At last "+3".
What's the answer?
Correct answer is "9".
This app is for play flash mental arithmetic to the fullest.
Let's go on an brain adventure!
Welcome to spectacle world! Let's go on an adventure for flash mental arithmetic
Date de mise à jour
27 yul 2025