I Think I Messed Up

<p>Actually, change that to I KNOW I messed up. I usually get like around mid to high 30s on the math section on previous tests and practice tests. I ended up getting a 27 this time. I know this a bubbling mistake because when I took the test and was reviewing my answers the last column didn't make sense. :(</p>

<p>Has anything like this happened to you guys?</p>