Current Events > Don't bother posting tricky math equations if you're not

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scar the 1
07/29/17 10:04:10 AM
#53:


PEMDAS is stupid. Division literally is multiplication and subtraction literally is addition. Why use a stupid rule when you can teach what the operations actually are instead.
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FighterStreet
07/29/17 10:21:21 AM
#54:


i never learned PEMDAS and hadnt heard of it til CE


seriously, if you need an acronym to do basic fucking math you're a fucking moron

the answer is 10 btw, and you should be able to tell what it is just by looking at it if you are past the fucking 3rd grade...

jesus fucking christ
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Fam_Fam
07/29/17 10:25:47 AM
#55:


the answer is 58 according to the order of operations

Source: doctoral student in mathematics education who trains elementary school teachers
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Fam_Fam
07/29/17 10:26:05 AM
#56:


FighterStreet posted...
i never learned PEMDAS and hadnt heard of it til CE


seriously, if you need an acronym to do basic fucking math you're a fucking moron

the answer is 10 btw, and you should be able to tell what it is just by looking at it if you are past the fucking 3rd grade...

jesus fucking christ


you are factually incorrect
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FighterStreet
07/29/17 10:29:26 AM
#57:


Fam_Fam posted...
FighterStreet posted...
i never learned PEMDAS and hadnt heard of it til CE


seriously, if you need an acronym to do basic fucking math you're a fucking moron

the answer is 10 btw, and you should be able to tell what it is just by looking at it if you are past the fucking 3rd grade...

jesus fucking christ


you are factually incorrect

no, im not.

in order for it to be 58 it would have to be written
(6^2/2)(3)+4

the way it is written now is just classic short hand that has an obvious answer, it isnt formatted correctly. nor does it need to be
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FighterStreet
07/29/17 10:34:47 AM
#58:


Fam_Fam posted...
the answer is 58 according to the order of operations

Source: doctoral student in mathematics education who trains elementary school teachers

source: argumentum ad verecundium

literally no evidence to support anything you said other than

'dur hur im da field'
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Damn_Underscore
07/29/17 12:10:10 PM
#59:


scar the 1 posted...
PEMDAS is stupid. Division literally is multiplication and subtraction literally is addition. Why use a stupid rule when you can teach what the operations actually are instead.


PEMDAS is rellaly PEMandDAandS

Multiplication & division, and addition & subtraction have the same weight in PEMDAS and are done in order from left to right

People who think PEMDAS means you do all multiplication before division or all addition before subtraction were probably taught it poorly
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Anteaterking
07/29/17 12:14:14 PM
#60:


Multiplication by concatenation is often given higher priority than symbolic multiplication/division.
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COVxy
07/29/17 12:15:56 PM
#61:


Every single one of these topics can learn a thing or two from xkcd:
https://xkcd.com/169/
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OrangeCrush980
07/29/17 12:22:21 PM
#62:


itachi15243 posted...
6^2 =36/2


Incorrect, your post has been invalidated.
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Damn_Underscore
07/29/17 12:23:00 PM
#63:


Anteaterking posted...
Multiplication by concatenation is often given higher priority than symbolic multiplication/division.


There has to be a standard. If TC wanted (2*3) to happen before (36/2) then he should have specified that. Right now it's ambiguous so we have to go with the standard.
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Anteaterking
07/29/17 12:58:58 PM
#64:


Damn_Underscore posted...
Anteaterking posted...
Multiplication by concatenation is often given higher priority than symbolic multiplication/division.


There has to be a standard. If TC wanted (2*3) to happen before (36/2) then he should have specified that. Right now it's ambiguous so we have to go with the standard.


The standard IS that way for a lot of things.
Example: http://www.wolframalpha.com/input/?i=4%2Fxy
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Damn_Underscore
07/29/17 1:08:29 PM
#65:


https://www.wolframalpha.com/input/?i=6%5E2%2F+2(3)+%2B4
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Slayerblade11
07/29/17 1:19:14 PM
#66:


It's 58 but a lot of people are get fucked by 2(3). One of those tricky equations. Would be 10 if it was 6^2/(2*3)*4
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JMP09
07/29/17 1:22:35 PM
#67:


6 ^ 2 / 2 (3) + 4 Only one number is in parenthesis/brackets so it's treated as multiplication. Exponent next.
36 / 2 (3) + 4 Now work left to right since multiplication and division are on the same level
18 (3) + 4 Multiplication/division have a higher priority than addition/subtraction
54 + 4 Addition is all that is left
58
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Manocheese
07/29/17 1:25:15 PM
#68:


It's not ambiguous. The answer is 97.

62 divided by 2 is 31.
31 times 3 is 93.
93 plus 4 is 97.
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Damn_Underscore
07/29/17 1:25:47 PM
#69:


Here's what I don't get though

https://www.wolframalpha.com/input/?i=6%5E2%2F+2(x)+%2B4
https://www.wolframalpha.com/input/?i=6%5E2%2F+x(3)+%2B4

You get two different answers.

It might have to do with the fact that wolfram alpha thinks x3 is the same thing as x^3. So when you do this

https://www.wolframalpha.com/input/?i=6%5E2%2F+x*(3)+%2B4

It gives you the correct format again.
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Deadpool_18
07/29/17 2:42:33 PM
#70:


dave_is_slick posted...
It's 10.

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Damn_Underscore
07/29/17 3:20:17 PM
#71:


If you didn't use the division sign and wrote it like this

6^2
____ + 4

2(3)

then the answer would be 10
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TomNook20
07/29/17 3:24:11 PM
#72:


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Fam_Fam
07/30/17 2:00:57 PM
#73:


FighterStreet posted...
Fam_Fam posted...
the answer is 58 according to the order of operations

Source: doctoral student in mathematics education who trains elementary school teachers

source: argumentum ad verecundium

literally no evidence to support anything you said other than

'dur hur im da field'


The order of operations states that you do multiplication and division left to right, just like subtraction and addition. It has been mentioned many times, and so I didn't think I needed to state that again.
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