Brain Mania - math game

Have you ever guess how much your I.Q point is?

you can know that just play this game during 120seconds..

rules is simple

1. choice a number block which is correct to solve math ploblem

2. ex) ? + 2 = 3 you know the answer is 1 then touch number block

3. To solve many ploblems quickly and exactly is more improving your iq point.