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re: This math problem is clearly only for geniuses...
Posted on 2/24/16 at 10:04 am to SG_Geaux
Posted on 2/24/16 at 10:04 am to SG_Geaux
quote:
Instead of PEMDAS it should be PE(MD)(AS)
[PE(MD)(AS)]^exponents
--------------> . . <-------------
Problem is that PEMDAS is supposed to make parentheses less necessary and here we are throwing in a bunch of them.
This post was edited on 2/24/16 at 10:05 am
0
Posted on 2/24/16 at 10:04 am to LNCHBOX
quote:
For what? They're unnecessary for this problem.
Parenthesis are typically used to clarify an otherwise unclear mathematical equation. 5 pages of discussion should tell you it's anything but clear.
Posted on 2/24/16 at 10:05 am to NYNolaguy1
quote:
Parenthesis are typically used to clarify an otherwise unclear mathematical equation. 5 pages of discussion should tell you it's anything but clear.
This isn't like the 288/8 problem. The only way to get this wrong is to not do the math correctly. You can't justify unnecessary parentheses because some idiots here can't do the math correctly.
Posted on 2/24/16 at 10:06 am to KG6
quote:
but it doesn't always work out. for example
3x8/2x4=
(3x8)/(2x4)= 3
3x(8/2)x4= 48
If I was working that out I'd treat the 8/2 as a single value shown in the form of a fraction, thus 3x4x4=48.
I don't know if that's "correct" though.
Posted on 2/24/16 at 10:06 am to RBWilliams8
Eleventy
Posted on 2/24/16 at 10:07 am to NYNolaguy1
quote:Yeah but the point of PEMDAS is to cut down on parentheses when possible.
Parenthesis are typically used to clarify an otherwise unclear mathematical equation. 5 pages of discussion should tell you it's anything but clear.
Without order of operations, 6x^2 + 2x - 15 would have to be written [6(x^2)] + (2x) - 15
That's not even a great example but it should help show why PEMDAS is useful
Posted on 2/24/16 at 10:07 am to LNCHBOX
quote:Damn. Forget something from grade school and now I'm an idiot.
You can't justify unnecessary parentheses because some idiots here can't do the math correctly.
That sucks.
Posted on 2/24/16 at 10:08 am to StrongBackWeakMind
quote:
Damn. Forget something from grade school and now I'm an idiot.
That sucks.
Sorry you can't do grade school math. That doesn't make parentheses required.
ETA: And it doesn't make you an idiot at everything, but something tells me you're just looking to start an argument with me.
This post was edited on 2/24/16 at 10:09 am
Posted on 2/24/16 at 10:09 am to LNCHBOX
quote:Me, too. I'm an idiot now.
Sorry you can't do grade school math.
quote:When did I say that?
That doesn't make parentheses required.
Posted on 2/24/16 at 10:09 am to StrongBackWeakMind
quote:
When did I say that?
I never said you did. Unwad your panties.
Posted on 2/24/16 at 10:09 am to RBWilliams8
Why not put it parentheses like adults do?
Posted on 2/24/16 at 10:09 am to biglego
quote:
Answer is 9, retards
Posted on 2/24/16 at 10:09 am to RBWilliams8
9. This is black and white. (No pun intended).
Posted on 2/24/16 at 10:10 am to LSUBoo
That's where some people lean on the "left to right" rule. I personally come from an engineering background and spent years solving problems that actually represented something. Therefore I knew what operations needed to take place first and used parenthesis to mark it that way. I feel like left to right can be used as a math language, but it seems like something used for solving arithmetic at the end of a 7th grade text book. It's not wrong to say left to right I guess, but I was never taught that, so I consider it to still be ambiguous. Again, this has nothing to do with the OP problem. That problem is clear.
Posted on 2/24/16 at 10:10 am to LNCHBOX
quote:Then why say that to me?
I never said you did.
quote:I don't wear panties.
Unwad your panties.
Posted on 2/24/16 at 10:11 am to StrongBackWeakMind
quote:
Then why say that to me?
For the benefit of everyone reading the thread.
quote:
I don't wear panties.
Nor do you understand popular expressions. Carry on.
Posted on 2/24/16 at 10:12 am to Placebeaux
quote:Because in the problem the OP posted, parentheses are completely unnecessary. Anyone with a mastery of grade school mathematics should be able to correctly solve that problem.
Why not put it parentheses like adults do?
It's funny, you're unable to solve the problem and you're blaming other people because you got it wrong. The problem isn't with how it's written, it's with you.
It's of almost zero real consequence, so own it and admit you got it wrong and that it's your own fault. Who gives a frick?
Posted on 2/24/16 at 10:13 am to Hog on the Hill
quote:
Because in the problem the OP posted, parentheses are completely unnecessary. Anyone with a mastery of grade school mathematics should be able to correctly solve that problem.
Preach.
Posted on 2/24/16 at 10:13 am to RBWilliams8
It's 9.. 3x0=0, then it's just 3+3+3.
Posted on 2/24/16 at 10:14 am to KG6
3+3-3x0+3
Parentheses - none
Exponents - none
Multiplication
3+3-3x0+3 = 3+3-0+3
Division - none
Addition
3+3-0+3 = (3+3)-(0+3) = 6-3
Or, you can do the subtraction method which it seems plenty of y'all are doing before you do the addition step.
3+3-0+3 = 3+3+3 = 9
Subtraction - none
6-3 = 3 <---
This is what I'm going with.
Parentheses - none
Exponents - none
Multiplication
3+3-3x0+3 = 3+3-0+3
Division - none
Addition
3+3-0+3 = (3+3)-(0+3) = 6-3
Or, you can do the subtraction method which it seems plenty of y'all are doing before you do the addition step.
3+3-0+3 = 3+3+3 = 9
Subtraction - none
6-3 = 3 <---
This is what I'm going with.
This post was edited on 2/24/16 at 10:17 am
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