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04292011, 08:50 PM  #11 
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Trigger
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I got 9 also.

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04292011, 09:07 PM  #12 
eating tasty
White Marlin
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...
Last edited by FenderBender; 04302011 at 10:48 AM. 
04292011, 09:12 PM  #13 
Auburn Grad  1999
White Marlin
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The answer is 1. I live on excel and I guarantee it will read 1. Wish I had my laptop to prove it. Maybe tomorrow. If your coming up with 9 your not keying it in correctly.

04292011, 09:29 PM  #14  
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Quote:
6/2+3 (2+1)=3 3X3=9 

04292011, 09:30 PM  #15 
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04292011, 09:40 PM  #16 
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Grouper
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Like some one mentioned above, the standard order of operations for math problems is
terms inside parenthesis exponents and roots multiplication and division addition and subtraction so with that in mind... 6/2(2+1)= 6/2(3)= 3(3)= 9 So I would say 9 is the answer but I can see how some folks are getting 1. I don't teach math though...just science 9
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04292011, 09:42 PM  #17 
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White Marlin
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while xl is great at "formulas", xl formula's aren't based on science, they are based on what ms has created
the TI85 is a scientific calculator and I believe far more accurate. you can manipulate the formulas in xl to do what you want, my wife writes xl programs and is one of the xl guru's for her company, you can't manipulate the TI85 and it says 9. 
04292011, 10:16 PM  #18 
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04292011, 10:23 PM  #19 
eating tasty
White Marlin
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Now I feel dumb. It's the "/" symbol that threw me off. I googled it. From some professor of mathematics...
Best Answer  Chosen by Asker I am your college professor that you requested, with a doctorate in Mathematics. I will break this down as simply as possible and end this debate as approx. 10 students have already asked me this today. The problem as it is written is 6÷2(1+2) , the ÷ cannot be substituted with a fraction bar because they have different ranks on the order of operations. It is an illegal math move to do this. The bar ranks with parentheses, ÷ is interchangeable with *. 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) edit this is a copy and paste from google answers, i am not a professor! (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 Just because something is implied rather than written does not give it any special rank in the order of operations. The problem in it's simplest form, with nothing implied would look like this: (1+1+1+1+1+1 (over) 1) ÷ (1+1 (over) 1) * ((1(over) 1) + (1+1 (over) 1)) From here, nothing is implied, This again, works out to 9. If the symbol '/' was used this whole debate would be ambiguous since that symbol can mean "to divide by" or it could mean a fraction bar. HOWEVER, because the ÷ symbol is used, it can not be changed to mean a fraction bar because that would change the order of operations and thus the whole problem, you can't change a symbol to mean something because you want to, in doing so you are changing the problem. Once and for all, the answer is 9. Hopefully some of my students see this so I can stop answering this question. End of debate... hopefully. Source(s): Doctorate, 9 years teaching experience. EDIT this is something I copied and pasted form google I am not a professor! Last edited by FenderBender; 04302011 at 10:44 AM. Reason: to clear confusion 
04292011, 10:26 PM  #20 
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