
Thread: How the **** can you mess this up  This thread is pages long: 1 2 3 · NEXT» 

NoobX
Promising
Legendary Hero
brebare yor anuz

posted January 14, 2020 09:53 AM 

Edited by NoobX at 11:22, 14 Jan 2020.

How the **** can you mess this up
A rather simple thread appeared on /b with a rather simple equation:
6÷2(1+2)=?
And as always all hell breaks loose. People keep bringing up this PEMDAS which I can only guess stands for
Parentheses; Exponents; Multiplication; Division; Addition; Substraction
And now that I've read about it I cannot but feel shocked that multiplication and division have been put on the same level of priority. Like, what the hell people?!
Instead of getting 1 as the answer to the equation, people are getting 9 because they are dividing before multiplying. Again, what the hell? Never in my life have I seen multiplication and division be put on the same level of priority. Never. But apparently all the sites I've checked seem to do that; all the people citing PEMDAS seem to do that. What am I missing here?
____________
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DrakonDeus
Undefeatable Hero
Horseman of Havoc

posted January 14, 2020 10:46 AM 


Dear Math,
I don't miss you at all.
Love,
Me
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Horses don't die on a dog’s wish.


Neraus
Promising
Legendary Hero
Pizza Nazi

posted January 14, 2020 11:07 AM 


Easy, stop being a scrub doing all on a single line. Be a real man and use fractions you sniveling coward!
____________
PLVTOCRATIC AND REACTIONARY DEMOCRACIES OF THE WEST
POTERE, LO SFORZO, LA PASTA
0.05% Chance of being Cyrus the Great's descendant


CountBezuhoff
Supreme Hero
Horseman of Chaos

posted January 14, 2020 12:19 PM 


The way it is written the answer should be 9, but do mind that only a monkey (or a fourth grader) would be foolish enough to tarnish his good name with such a flawed syntax.
Neraus said: Easy, stop being a scrub doing all on a single line. Be a real man and use fractions you sniveling coward!
Agreed. It's much easier to keep track of and gives you room to concentrate on more crucial parts of the problem.
The Count
____________
"...Mr Hack... I don't feel so good..."


Oddball13579
Legendary Hero
Horseman of Madness

posted January 15, 2020 12:31 AM 


Because multiplication is not a "higher priority". It does not come before division.
True PEMDAS looks more like this.
Parenthesis>Exponents>{Multiplication & Division}>{Addition & Subtraction}.
Multiplication/division and addition/subtraction are equal in the order of operations.
Multiplication and division take priority over addition and subtractions. But they do not take priority over each other.
6÷2(1+2)=?
After doing the parenthesis, all you have left is division and multiplication. So you simply solve from left to right now. Because multiplication and division are equal. So 6÷2×3=9.
Incidentally it wasn't called PEMDAS when I was in school it was BEDMAS.
Brackets>Exponents>Division>Multiplication>Addition>Subtraction.
Even if I did division first, the answer would still be the same. 9.
TL;DR Multiplication and division are equal, when they are the only things left you simply solve from left to right. One does not come before the other. Same rule for addition and subtraction.
____________
"Everyone is a schlong sucker."  Kayna
"I would have needed to dislocate my jaw to fit it inside my hole."  Blizzardboy


NoobX
Promising
Legendary Hero
brebare yor anuz

posted January 15, 2020 01:05 AM 


So what you're saying is that "6÷2(2+1)" is the same as "(6÷2)*(2+1)"?
It would make sense if "6÷2" was actally the fraction "6/2" and the "(2+1)" is separated from it, but then this is a question regarding syntax.
The way I've been taught makes me say that "6÷2(2+1)" is the same as "6÷(2*(2+1))"
What the hell is going on?!
____________
Ghost said: Door knob resembles anus tap.


Oddball13579
Legendary Hero
Horseman of Madness

posted January 15, 2020 03:19 AM 


NoobX said: So what you're saying is that "6÷2(2+1)" is the same as "(6÷2)*(2+1)"?
Yeah those two are the same equation. One is just missing the "*" sign. When you have a number next to a (), for instance like 150÷6(325*5) it really means 150÷6*325*5. It just makes it look a little cleaner. A number next to a () just means multiplication without the sign.
NoobX said: It would make sense if "6÷2" was actally the fraction "6/2" and the "(2+1)" is separated from it, but then this is a question regarding syntax.
True. But regardless if you write it out as 6/2 or 6÷2 the end result is still gonna be the same.
NoobX said: The way I've been taught makes me say that "6÷2(2+1)" is the same as "6÷(2*(2+1))"
This is a little trickier cause those are technically 2 different equations when it comes down to it. If you were to solve them with PEMDAS/BEDMAS the answers would be different.
6÷2(2+1)
6÷2(3)
3*3
=9
6÷(2*(2+1))
6÷(2(3))
6÷(2*3)
6÷6
=1
NoobX said: What the hell is going on?!
I honestly have no idea man, math is so snowing weird.
____________
"Everyone is a schlong sucker."  Kayna
"I would have needed to dislocate my jaw to fit it inside my hole."  Blizzardboy


Celfious
Responsible
Legendary Hero
Regular

posted January 15, 2020 11:46 AM 


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No doubt they are making fine tools by now.


Minion
Legendary Hero

posted January 15, 2020 12:49 PM 


NoobX said:
The way I've been taught makes me say that "6÷2(2+1)" is the same as "6÷(2*(2+1))"
It is not the same. They have tought you wrong


NoobX
Promising
Legendary Hero
brebare yor anuz

posted January 15, 2020 01:21 PM 


That's great, 12 years of schooling going down the drain, just like that.
____________
Ghost said: Door knob resembles anus tap.


DrakonDeus
Undefeatable Hero
Horseman of Havoc

posted January 15, 2020 02:25 PM 


NoobX said: That's great, 12 years of schooling
...and they judge me based on a twopage resume. Great, yes.
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Horses don't die on a dog’s wish.


Elvin
Admirable
Omnipresent Hero
What if Elvin was female?

posted January 15, 2020 02:44 PM 

Edited by Elvin at 14:58, 15 Jan 2020.

Heh. People always have their own version of maths.
It's ok nooby, we forgive you.
PS:
6÷2(1+2)= (6/2)x(1+2) = 6/(2x3)
Any order will work.
____________
Juoksentelisinkohan?


Blizzardboy
Honorable
Undefeatable Hero
Addicted to Bathwater.

posted January 15, 2020 02:56 PM 


The Order of Operations are more like guidelines to light the way on the individualistic journey of life. Just be yourself when deciding how closely you want to follow them. You might not get THE right answer, but you will get YOUR right answer.
____________


Blizzardboy
Honorable
Undefeatable Hero
Addicted to Bathwater.

posted January 15, 2020 03:00 PM 


NoobX said:
The way I've been taught makes me say that "6÷2(2+1)" is the same as "6÷(2*(2+1))"
I don't think that's how you were taught. At least I hope not.
____________


DrakonDeus
Undefeatable Hero
Horseman of Havoc

posted January 15, 2020 03:22 PM 


Blizzardboy said: The Order of Operations are more like guidelines to light the way on the individualistic journey of life. Just be yourself when deciding how closely you want to follow them. You might not get THE right answer, but you will get YOUR right answer.
Like the Pirate Code, eh?
____________
Horses don't die on a dog’s wish.


Oddball13579
Legendary Hero
Horseman of Madness

posted January 15, 2020 11:47 PM 


Blizzardboy said: The Order of Operations are more like guidelines to light the way on the individualistic journey of life. Just be yourself when deciding how closely you want to follow them. You might not get THE right answer, but you will get YOUR right answer.
That's.......that's really snowing stupid. We aren't fing pirates here.
____________
"Everyone is a schlong sucker."  Kayna
"I would have needed to dislocate my jaw to fit it inside my hole."  Blizzardboy


Elvin
Admirable
Omnipresent Hero
What if Elvin was female?

posted January 16, 2020 10:30 AM 


Oh no. You didn't get the memo?
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Juoksentelisinkohan?


Oddball13579
Legendary Hero
Horseman of Madness

posted January 17, 2020 05:49 AM 


Wait which memo?
Was it the one about how we missed Jesus's resurrection? Or the memo about Count's real name being leaked?
____________
"Everyone is a schlong sucker."  Kayna
"I would have needed to dislocate my jaw to fit it inside my hole."  Blizzardboy


Maurice
Hero of Order
Part of the furniture

posted January 18, 2020 12:01 PM 


Elvin said:
(6/2)x(1+2) = 6/(2x3)
How is (6/2) x (2x3) ever equal to 6/(2x3)?
Brackets are the first thing you need to work out, so the left one resolves into 3x6, whereas the right one resolves into 6/6.
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CountBezuhoff
Supreme Hero
Horseman of Chaos

posted January 18, 2020 01:00 PM 


HC can't into math.
The Coubt
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"...Mr Hack... I don't feel so good..."


