Side note, in base ten, ten is written as 10, in base twelve, twelve is written 10. In sexagesimal, sixty would be 10. Those of you who know (or vaguely recall learning) binary (a.k.a. base two) from school, will also know that two is represented as 10.
For this reason I have avoided writting base-10 , base-12 and base-60 above. It is better IMHO to write out "base ten", "base twelve", etc.
Anyway, on that note, here is a joke for you.