You Stupid - The amazing simple math

Category	Price	Seller	Device
Games	Free	Nghia Luong	iPhone, iPad, iPod

Now you can prove it by answering math questions like the kid in the famous vine.
The app has all the sounds of the famous vine.
Plays the "21" sound every time the answer is 21.

Game has 3 modes: Easy, Medium and Hard.
Have fun and let's prove you're not stupid.