5.
so talking to a friend who is a mathematical genius!
I asked him to solve for x: x^2 + 2x + 1 = 0 and he couldn't do it
I asked him to simplify: sqrt(x^2) and he couldn't do it
I asked him what 40 + 40 + 40 + 40 x 0 + 1 equaled. He first said 2, not only did he not use bodmas, but he thought that everything multiplied by 0 equals one.

This same person can do most integral calculas functions fine...
...strange guy