Watching this video just made me dummer. I thought I knew that 9+6=15, but now I'm just so confused. Oh, my. What if the equation was 6+9? Do I borrow a 1 from the 6 or the 9? Is there a loan application I have to fill out to borrow the one? How much interest is involved? I just can't take all this stress. Oh, what to do. What if 6 doesn't want to borrow 1 from 9? Maybe there are sanctions to consider. Maybe Obama won't let me borrow 1 from Putin. I think I'm loosing my mind. Thank you common core.