lacanteen
Well-Known Member
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- Apr 18, 2019
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- Louisiana: Cajun Country
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- George
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Maybe Kentucky doesn't have a city that big?so why not use a more rational metric of 1 meter square, or per prison regulation 2 meter square?
Nooooooooooooooooooo
back when airplanes were designed for pilots and not generals.
There is a quick and dirty check that works for addition, subtraction, and multiplication that's based on the number 9.If a number is divisible by 9, the sum of all its digits is also divisible by 9. Try it.
9, 18, 27, 81, 108, 927, etc.
but did she teach you the Theorem and have you work out the mathematical proof?I had a 5th or 6th grade teacher who taught that.
it was a joke, my good man. But back then you actually got an education when you want to school... I failed a math class in college because it was all about theorem and proofs and I never really grok'd it. Give me trig or linear algebra all day long. Just not proofs.No. This teacher was not a theoretician. Just a very practical-minded individual dedicated to teaching who had somehow stumbled across that little gem. This was probably 6th grade (my 1958-1959 school year).