So my birthday is September 12, 1997 (09/12/1997). If I add it up as 9+1+2+1+9+9+7 = 3+8 = 11 But if I add it up a different way that I see people suggesting, I get 2. (9)+(1+2)+(1+9+9+7) = (9)+(3)+(2+6) = 9+3+8 = 2(0) Which one is the "correct" way to do it? If anyone has links to prove your correct, please link it with your comments. I'm super lost and confused!!