Mod3

Mod3 is a game where you have to do simple calculations against the conventional rules of math. The rules are as follows:
* When the addition of the given numbers can be divided by 3, the result is the addition of those numbers.
* Otherwise, the result is the first of the given numbers.
You have 3 seconds to punch your answer - and be careful: the game ends on the first wrong answer. And as the game progresses, the difficulty increases...
See how many calculations you can solve or challenge your friends online.