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Joined: Jan 2009
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Highest Posting Power Known to Humanity
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Highest Posting Power Known to Humanity
Joined: Jan 2009
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Time I dust off this thread & provide the answer as derived by two college math professors (One is a very close frind of mine & a retired Math PhD) er.jacob89 breaks it down above by doing the parened operation first...
*E*: left to right is the precedence for mult/div 6�2*3. Correct answer is 3*3 or 9.
*G*: Brad - *E* stated it correctly (no big surprise to either *E* or me). Math follows certain conventions and the left to right is one of them. I learned it (way back when) as : Add or multiply or divide, then add or subtract. In case of a tie go left to right. The Please Excuse My Dear Aunt Sally tells you to do what is in the parentheses first, then exponents then multiply or divide, then add or subtract (in case of a tie go left to right).
I'll now rest my case with an answer of NINE (9)
-B-
"We do not inherit the Earth from our ancestors,
we borrow it from our children."
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Joined: Nov 2007
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Highest Posting Power Known to Humanity
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Highest Posting Power Known to Humanity
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I so agree! Good job, Beetle. You have settled it once and for all. Yeaaaaah!!!!
Walk in Peace and Harmony.
Phyllis Doyle Burns
Avatar: Fair Helena by Rackham, Public Domain
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Joined: May 2008
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Newbie
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BellaOnline Editor Renaissance Human
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BellaOnline Editor Renaissance Human
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Beetle, that's how I teach it. Your explanation a long time ago was brilliant. That's when I started reading your posts; it was so elegantly written.
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Joined: Jan 2009
Posts: 60,166
Highest Posting Power Known to Humanity
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Highest Posting Power Known to Humanity
Joined: Jan 2009
Posts: 60,166 |
-B-
"We do not inherit the Earth from our ancestors,
we borrow it from our children."
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Joined: Nov 2007
Posts: 17,644
Highest Posting Power Known to Humanity
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Highest Posting Power Known to Humanity
Joined: Nov 2007
Posts: 17,644 |
wooooo hoooo!!!!  I always had faith in you, Beetle.
Walk in Peace and Harmony.
Phyllis Doyle Burns
Avatar: Fair Helena by Rackham, Public Domain
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Joined: Aug 2012
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[quote=Lisa - Fiction Writing]The correct answer is 1. The second way you worked out the equation was correct, Beetle. [/quote]
Yes It is As the ( have most prior then multiplication , then Division .
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Joined: Jan 2009
Posts: 60,166
Highest Posting Power Known to Humanity
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Highest Posting Power Known to Humanity
Joined: Jan 2009
Posts: 60,166 |
Fully agree that the parened (1+2) operation is to be handled initially.
Yet, Multiplication does not have a priority over Division and are conducted mutually in left-to-right ordered process, before any Addition/Subtraction... as Division is merely multiplication of the value's inverse.
-B-
"We do not inherit the Earth from our ancestors,
we borrow it from our children."
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Chipmunk
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Chipmunk
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Joined: Sep 2011
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Chipmunk
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Chipmunk
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