Tobar (4/25/2013)
Frank W Fulton Jr (4/24/2013)
How many people could multipy 43564 x 35794 without a Calculator.Took me 6 minutes, but I was off by 3M. 🙂 Close enough for government work, unless of course you are NASA. 🙂 Didn't take due care, and didn't recheck my work.
'Casting out the 9's' is a great way to spot check calculations. Learned that from a math teacher in grade school back in the mid '60s.
BTW I have a slide rule in my desk drawer (as well as one built into my watch). Ready for the Zombpocalypse
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-- FORTRAN manual for Xerox Computers --