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#781052 - 09/05/12 01:05 AM Re: 62(1+2)=? [Re: Tina - Living Simply]
Beetlemess Offline
Highest Posting Power Known to Humanity

Registered: 01/02/09
Posts: 59243
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)
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#781055 - 09/05/12 01:12 AM Re: 62(1+2)=? [Re: Tina - Living Simply]
Phyllis Doyle Burns Offline
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Registered: 11/17/07
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I so agree! Good job, Beetle. You have settled it once and for all. Yeaaaaah!!!!
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#791780 - 11/08/12 02:34 AM Re: 62(1+2)=? [Re: Tina - Living Simply]
Lisan Offline
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Registered: 05/18/08
Posts: 22
Agree with Beetlemess:)

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#791790 - 11/08/12 03:17 AM Re: 62(1+2)=? [Re: Tina - Living Simply]
Connie - ADD/Sandwiches Offline
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Registered: 10/03/10
Posts: 7204
Loc: Kansas USA
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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#791829 - 11/08/12 04:56 PM Re: 62(1+2)=? [Re: Tina - Living Simply]
Beetlemess Offline
Highest Posting Power Known to Humanity

Registered: 01/02/09
Posts: 59243
Hallejuah!
_________________________
-B-
"We do not inherit the Earth from our ancestors,
we borrow it from our children."

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#791851 - 11/08/12 05:42 PM Re: 62(1+2)=? [Re: Tina - Living Simply]
Phyllis Doyle Burns Offline
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Registered: 11/17/07
Posts: 17642
Loc: Reno, NV
wooooo hoooo!!!! smile I always had faith in you, Beetle. smile
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Phyllis Doyle Burns
Avatar: Fair Helena by Rackham, Public Domain

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#794716 - 11/30/12 01:28 PM Re: 62(1+2)=? [Re: Lisa - Fiction Writing]
Sam friend Offline
Newbie

Registered: 08/13/12
Posts: 41
[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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#794722 - 11/30/12 03:50 PM Re: 62(1+2)=? [Re: Tina - Living Simply]
Beetlemess Offline
Highest Posting Power Known to Humanity

Registered: 01/02/09
Posts: 59243
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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#794726 - 11/30/12 04:11 PM Re: 62(1+2)=? [Re: Tina - Living Simply]
Burt B. Offline
Chipmunk

Registered: 09/09/11
Posts: 1853
6
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#794727 - 11/30/12 04:12 PM Re: 62(1+2)=? [Re: Tina - Living Simply]
Burt B. Offline
Chipmunk

Registered: 09/09/11
Posts: 1853
9 sorry
my bad
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