-1900+2011=222
-111=111


You maybe want to rethink this.



(x-1900)+(2011-x)=111-1900+2011=111
-111=111


x = your age, e.g. 30

(30-1900)+(2011-30) = 111
(-1870)+(1981) = 111
111 = 111



I've got the math, writing it out correctly is the problem *lol*