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04302011, 01:47 AM  #31 
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Grouper
Join Date: Oct 2007
Location: Fairhope AL
Posts: 911

*. therefore the problem must be solved as 6÷2(1+2) NOT 6 (over) 2(1+2) we do the parentheses first, so 6÷2(3), the parentheses are now no longer relevant, because the number inside is in it's simplest form. Every single number has implied parentheses around it.
6÷2(3) (6) ÷(2)(3) 6÷2*3, or even converting the division to multiplication by a reciprocal (a legal math move) (6)(1 (over) 2)(3) are all correct ways to write this problem and mean exactly the same thing. Using pemdas, where md and as are interchangeable, we work from left to right, so (3)(3) or 3*3= 9 Question? For the teacher Doesn't 6 divided by 2*3 = 6/6 that equals 1???? And the same for (6)(1)/(2)(3)=6/6=1 Hopefully some of my students see this so I can stop answering this question. Sorry  never a great student here but I never minded asking The questions. Thanks Source 12 years school and six years of undergrad for my BS LOL 
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04302011, 02:20 AM  #32 
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Trigger
Join Date: Dec 2010
Posts: 263

1 all day long......

04302011, 02:38 AM  #33 
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Trigger
Join Date: Dec 2010
Posts: 263

Correction parenthesis first then because Division and Multiplication holds same rank, its left to right. Its the fact this problem is written in a way just to cause this confusion. It caught me.
6/2(2+1)=6/2(3)=3(3)=9 Final Answer 
04302011, 07:15 AM  #34 
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Trigger
Join Date: Oct 2007
Location: Redneck Riviera
Posts: 251

wow sounds like a bunch of algebra and prealgebra level mistakes pemdas doesnt work here because you have to distrbute first 6/2(1+2) SO IF YOU KNOW ANY MATH YOU KNOW TO DISTRUBUTE THE 2 INTO THE PARENTHESIS 2*(1+2)=2+4=6 so in turn the expression looks like 6/6 and the answer is 1
Source(s): Student at MIT i know basic linear algebra like this and Differential equations+ took calculus 3 (university level calc) 
04302011, 07:31 AM  #35 
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Snapper
Join Date: Oct 2007
Location: Pace, FL or Sherman Cove or in the woods
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Answer is 1
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04302011, 10:37 AM  #36 
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White Marlin
Join Date: Oct 2007
Location: Pcola
Posts: 3,604

I think if the answer were 1, the problem would be written like this
6/[2(2+1)]= 1 
04302011, 10:45 AM  #37 
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Grouper
Join Date: Oct 2007
Location: Daphne, AL
Posts: 617

Wirelessly posted
My wife, a math and science teacher, says the answer is 9. 
04302011, 11:17 AM  #38  
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Grouper
Join Date: Oct 2007
Location: Fairhope AL
Posts: 911

Quote:
Well of course you have to agree with her! LOL 

04302011, 11:51 AM  #39 
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Grouper
Join Date: Oct 2007
Location: Daphne, AL
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Wirelessly posted
Haha, right. She says the order of operation is parenthesis, exponents, multiplication/division (in order they appear) and addition/subtraction (in order they appear). 
04302011, 12:18 PM  #40 
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Grouper
Join Date: Sep 2009
Location: Eglin AFB
Posts: 652

I asked my 8th grade daughter and she says 9. I showed her how people are getting 1 and she says thats wrong. In order of precedence, parenthesis first and since multiplication and division have the same ranking it is done from left to right. I agree with her 100%.
9 all day
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