[Cool Math’s Trick!] [ I Can Guess Your Age!] (Turn Annotations ON)

This Is One Very Cool Math's Trick I Discovered At School… Just wanted to share it with you guys! Enjoy… Don't Forget To Subscribe and Comment is it worked.

…ATTENTION…

If You Have Already Had Your Birthday This Year Add 1962
If You Haven't Had Your Birthday This Year Add 1961

This Is 2012's Version.