<<< Why don't we count?
Befuddled Meridian Christianna >>>
Uh, I don't know.
While not a tutorial, perhaps this file in the EDUCATION section of
the Florilegium might help:
Art-of-Arith-art (7K) 4/ 3/00 "The Noble Art of Arithmetic"
by Jan van Seist.
:-)
uh, Stefan (who else?)