So, what's the deal with Common Core?

It's basically standardized teaching that has been issued by the government.
It's been found to actually do more harm than good because you end up with situations like the one in the photo. People are having trouble with basic math problems now because of conflicting teaching methods.

It was created by a jew.
His goal was to lower the test scores of white students.

>>130728438
So shouldn't having a standard way to math fix this? I will admit, if I solve that problem the way I was taught I get 1, but if we explain the new standard properly it won't cause an issue.

>>130727518
niggers are retarded so lets make math a matter of the teacher's opinion.

That's what happens when you get lazy and don't group your terms properly

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i know right? its not common, and its not core

But there's literally nothing wrong with that picture.

20 / 5 = 4. --> 4(4) = 20
and
5(4) / 20=1 are both correct

>>130727518
The way I was taught in school it's 16. How does this result in 1?

it is basically how you do math in your head, if you know how to do math quickly. it's a trick
problem is no one barely needs to know how to do it, and they seem to teach it way too early. They keep trying to teach math using retarded tricks, instead of generic fundementals

>>130729390
i don't mean the pemdas fuckery like in op pic, because that's just plain retardation.

i mean the "make 10s" thing is a legitimate math trick, but it's just a trick, it shouldn't be fundamental to learning math.

>>130729357
American here, from the south no less. i was taught 16

>>130729357
Nvm I see. I've never understood why they don't just use an extra set of parentheses in math to avoid confusion like this.

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>>130727518
WTF is this horseshit? So schools don't teach order of operations anymore?

No wonder schools are garbage now a days. Kids are purposely being confused with shit like this.

i honestly think this will help kids be less confused with algebra.

>>130729618
They do. Try this on any computer or calculator and you will get 16. Extra parentheses are needed to get 1

>>130729286
order of operations nigger

>the old way
>1

But that's not correct using the old way! When you only have multiplication and division remaining, you go from left to right

>20 / 5 (2 * 2)
>20 / 5 * 4
>4 * 4
>16

1 is wrong no matter how you choose to look at it

>>130729583
It's not just a matter of the make 10's technique, it's also doing away with the old vertical antilogarithm granny method because no one sits there and carry's the fucking two and shit in high school+ math. If you solve 46+72 like this
46
+72
--------
instead of 40+70+8, you're literally subhuman

>>130729286
>4(4) = 20

retard alert

>>130730047
Yeah. Although on tests I always used to put extra parentheses to get 16 as well, just to be safe.

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20/(5(2*2)) = 20/(5*4)=20/20=1

20/5(2*2)=20/5(4)=20/5*4=4*4=16

It's a matter of parenthesis. This Common Core is retarded; American public education is a joke. I'm an American from a top university. At my workplace, we had a Saudi educated guy work for us; he was far-better educated and eloquent than most of my co-workers. I was utterly embarrassed as to how retarded my co-workers were and had to apologize to my Saudi guy because of the "educated" retards

>>130730184
Yeah I think the confusion is that many people were learning math the wrong way for a long time so they need to standardize it unless we want some kind of math disparity across state borders.

>>130730184
>you go from left to right
but if you express it like a fraction?

>>130730363
Were you even taught common core? Maybe the Saudi guy was taught that way.

>>130730385
if niggers are too retarded to understand basic shit then why hold their hands and confuse the white kids? i've never seen white kids have trouble with order of operations once they were introduced.

>>130730542
An improper fraction? Anyway it doesn't make a difference. Fractions are just division

>>130727518
Wouldn't the 5 distribute to both 2s in parentheses?
So
20/(10*10)

>>130730710
>2017
>this retarded

>>130730184
This.

>>130730598
no child left behind was, I guess trying to be virtuous but ended up being a huge mistake

>>130730592
No. My mom is a physics teacher at a high school. She tells me all about Common Core and the degradation of American public education and the quality of students every year

>>130729252
so what's the deal with black people? they're not really black and they're not really people.

>>130729036
There cannot be any objective truth in today's society. So math had to be revised to suit this.

>>130730598
How is it even confusing?

>>130730542
If it's a fraction it would be
(20/5)*4, still 16

PEMDAS, people.
please excuse my dear aunt sally is in every physics book you can find in the library... well the old one's anyway.

It means Parenthesis, Exponents, MULTIPLICATION, division, addition and subtraction.

It's like those idiots are trying to destroy all the physics we've built up till now!!! (or at least make the old books "obsolete"...)

>>130729609
Apparently you were never taught PEMDAS.

>>130730927
So she's saying common core is causing problems for students? Has it been out long enough for students to be having problems in physics class already? I honestly don't know. Anyway not saying the schools aren't shit but I don't think it's because of common core.

>>130730710
If you consider it a fraction then yes. Otherwise you'd do the "from left to right if precedence is equal" dance.

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>>130730710
>>130729286
As an autistic mathematician this thread rilly fucking devastates me.

If you're not retarded, the / is interpreted as a fraction bar which implies parentheses: (20) / (5(2*2)) = 1

>>130727518
WHY THE FUCK DO YOU NIGGERS GIVE THESE SHILLS FUCKING ATTENTION THAT THEY NEED. ALREADY 31 REPLIES BEFORE I CAME HERE AND ALL OF YOU FUCKING IDIOTS CANT SEE THAT THESE ARE LARPING TYPE THREADS. YOU PEOPLE ARE SO FUCKING EASY MANIPULATED IN ORDER FOR YOU TO STAY OFF TRACK. THIS HAS NOTHING TO DO EITH POL/
>hurrrrr but youre giving him attention after you said not to give him attention.

Fuck off

>>130731207
They're trying to destroy all the tools we have used to build our civilization. Tradition, culture, mathematics...

>>130731139
no. a fraction would be

20
--------
5 (2 2)

>>130731526
I came here for the meth

>>130731207
>addition and subtraction.
haha amerifats giving addition precedence over subtraction <3
useless people

>>130731450
Sorry it's been a while since I've used maths for anything besides a tape measure.

>>130728884

We had a standard way to fix this. If you followed Pemdas you always got the same answer, however with Common core you can have the same equations and get several different answers that are all "Right"

>>130730079
the order of operation were followed for the 16 and 1 result.

In the latter to get 16 you do (4)(20/5). And to get 1 you look at the problem like this 5(2*2)/20

>>130731136
lol i know youre being facetious here but belive it or not, there are correct and incorrect ways of teaching math. common core is an incorrect method you dopey little faggot.

>>130731773
It's not incorrect; PEMDAS doesn't work in every case so how can students be taught that it does?

>>130729618
the only time they don't is when people want to troll other people online with questions like WHAT DOES 8 / 5 * 3 EQUAL? and you get a mix of people who either solve it like (8/5) * 3 or 8 / (5*3)

>>130727518
Just switch math notation to RPN and all problems disappear.

>>130731688
It's BEDMAS in New Zealand and Canada.
It's BODMAS in UK, India and Australia.

Fuck, EVERY country with two braincells to rub together puts addition before subtraction.
Every one except yours it seems.

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>>130729286
PLEASE
EXCUSE
MY
DEAR
AUNT
SALLY

>>130731760
Jesus wtf why is this garbage here?

>>130731955
>PEMDAS doesn't work in every case
you mean the ones involving niggers?

>>130731688
they're the same precedence

>countless mathematicians write about how pemdas doesn't work
>schools try to change the situation
>spergs rage because it isn't what they were taught as kids
You people would have burned Galileo

>>130727518
PEMDAS
E
M
D
A
SHITHEADS

>>130731688
Addition and subtraction are literally the same thing

>>130731688
no, its more like P>E>M=D>A=S

>>130727518
Using BEDMAS
20/5(4)
4(4)
= 16

But using common sense
20/ 5(4)
20/ 20
= 1

If you write the 20 with a division line above the others, it makes sense. This is just poorly written.

>>130732309
>reddit black SCIENCE! manz meme
lol just show your flag coward

>>130731563
No you illiterate. It would still be
20
--- x(2x2)
5
There are implied parenthesis around 20/5. Anyone whose passed pre algebra should know this.

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>>130727518
How the fuck did they get 1 for traditional algebra?
>20/5*(2*2)
>20/5*4
>4*4
>16
This teacher sucks at math

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>>130731955
This. People seriously thing shit like the order of operations are set in stone axiom, when it's not.

Did your math teachers not tell you that the order of the multiplication and division does not matter?
Fucking high school dropouts "muh 16 is right" "muh 1 is right"

they're both right, and you're falling for a tradition fallacy

>>130732532
lol you think elementary school math teachers understand math?

>>130727518
PEMDAS
Literally the only thing you have to remember to solve this. Common core (should) be teaching that, it's just that kids are dumbasses who fuck around with fidget spinners instead of paying attention in class.

Why just don't fucking put parentheses?

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>>130727518
It is the natural evolution of comprehensive education which replaces absolute truth with relative truth, undermines rigor, high ideals and standards of behavior as they're 'authoritarian', and drags everyone down to the same miserable level of innumerate illiteracy in the name of fairness and equality.

Our education system isn't much better.

>>130732509
You innumerate fuck you don't understand that PEMDAS is just a handy trick that works most of the time but doesn't actually teach you the logic behind equations.

>>130732768
yes, so what we should do is just blow the foundations from under our educational system and try this wacky new method that is designed to artificially raise test scores in nigger-majority schools.

now fucking show your flag so we can make fun of you

>>130732532
They're going with the attitude that there is no value to order of operations.

The idea is that it's just an issue of grammar rather than math. Which in a way is true, but we've had this grammar for a long time because it helps us to avoid confusion which could result in problems where people get mixed up as to what they should do.

It's a sign of liberals wanting to fight against all conventions no matter how much it hurts society.

>>130732915
>artificially raises test scores
Proofs nigger

>>130732682
>Literally the only thing you have to remember to solve this
False information by a brainleet.

Another case of "knows enough to think he's right, but not enough to know when he's wrong." Again PEMDAS is not an axiom and you're all retarded for treating it as such and a clear indication you never made it to higher math

>>130730184
Thanks I thought I was going crazy

>>130732585
>People seriously thing shit like the order of operations are set in stone axiom, when it's not.
Guess I syntax not set in stone, eh?

This picture is basically showing the students that PEMDAS is not static a rule of the universe, and it's good. Everyone against it is simply math plebs

>>130732532
We were taught to simplify any expressions first.
So in this case, it would be:
20
--------
5(2*2)

Which would simplify to:
20
--------
20

Or just 1.

>>130733026
There is no inherent value to PEMDAS as an order of operations, it is not an axiom it is just a trick that helps you in most cases and it's better to learn it without tricks and then use the trick to save time. Thinking PEMDAS is set in stone is like thinking Picasso didn't learn to draw realistically before abstracting to cubism.

>>130732525
https://www.wolframalpha.com/input/?i=20+%2F+5(2*2)

>>130727518
that's just a poorly formatted problem, the answer depends on whether the fucking 2*2 is in the denominator or not

this is not mathematical skill, this is the epitome of fucking jewry

>>130727518
>>130729286
>>130729357
>>130729609
>>130730184
>>130730363
>>130731139

Holy fuck the retardation in this thread is truly awesome.

The answer is always 1. peMDas you fucking niggers, not peDMas:

20/5(2x2)

20/5(4)

20/20=1

fuck all of you, I hate summerfags

>>130733342
name a problem a grade school student would encounter where PEMDAS wouldnt work

>>130727518

>So, what's the deal with Common Core?

As opposed to the old system which encouraged individual acceleration through the motions of education, it panders to, and subjects the entirety of a group to the learning abilities of, the lowest common denominator (mentally speaking).

>>130727518
I see future doctors, rocket scientists and engineers there

>>130733201
I know you're bait but syntax is literally not set in stone
english is one of the most convoluted and dynamic languages and full of many dialects and creoles that are official somewhere

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>>130731515
REEEEEEEEEEEEEEEEEEEEEE
You don't just add parentheses willy nilly you animal, that changes the entire meaning of the equation. Also, ÷ and / mean the same exact thing, you can't just declare that / means a fraction, it literally means division

>>130731760
The common core one is the correct version of PEMDAS (P,E,MD,AS). Multiplication and division have equal precedence, since they're literally the same operation, so you just start from the left.

>>130733589
Grade school kids eventually have to take algebra and calculus and often PEMDAS and all the other retarded shit that rural and suburban retard schools taught them will make it hard so they'll drop out and sell meth to the other redneck trump supporters.

>>130727518
make whites and asians dumber by teaching them a convoluted way to problem solve that is more suited for blacks and hispanics. Average test scores go up, real iq goes down, liberals proclaim the system works.

>>130727518
those kids look awfully young to be learning that level of math. they probably havent even learned to not eat their boogers yet

>>130730079
Math, in reality, does not have an "Order of operations"
Order of operations was conceived for the fact that operations itself does not have a (((TIME))) ("or parenthesis, that is, being presented as the first one that should be operated by the operation")
Math just need a little adjustment in its "Order of operations" (1st, 2nd, 3rd, one to be operated)

As someone who has graded for Pearson. I can tell you that the world is going to hell.

>>130733741
But it's now how mathematicians have always done it. It's commonly accepted that divisions are treated as if the line separates the entire equation, giving precedence to multiplication. That's the "old way."

>>130727518
Basically niggers and spics cant into basic math and this triggers white guilt so a Jew decided that things like order of operations are a social construct and niggers get an A for effort because learning is racist.

>>130733896
why are you falling apart like this so soon?

>>130730184
this

>>130733734
Fractions represent division you autistic mongoloid.
÷ is for inline division. / is for fractions.

>>130733741
Wrong, you are still finding the product involving parenthesis you dumb ape.

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A grade school math teacher would probably tell you it doesn't matter if division or multiplication is done first, UNLESS there are parentheses.
t. subbed for math teacher

The old way = 1
wut????

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>>130732472
It's not a fraction you fucking leaf, it's division, which is the same thing and if you're not retarded it doesn't make a difference you get 16 either way

>>130733254
But you're making a visual argument for a mathematical equation. That's not how it works you dolt, I don't care that / looks like it should mean fraction to you that doesn't mean you can just decide that there are imaginary parentheses wherever you want. Algebra is performed left to right, not top to bottom

>>130733534
I feel like you're trolling but just in case, multiplication and division have the same precedence you go left to right once you eliminate out of order precedence

>>130732525
You're wrong too even if you got the right answer, there are no such thing as implied parentheses, that's how you end up with the wrong answer is by assuming there are parentheses where there aren't any.

You guys are fucking stupid

>>130734338
It's the wrong way

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>>130733589
The one in the picture, retard. They're purposely did not add more parenthesis so to leave up to interpretation. I bet you could not fucking defend yourself if you got a wrong mark on a test, simply because the machine that grades it did not see the exact answer it wanted. e.g. you're a fucking drone route learning faggot who's part of the problem Americans are absolute shit at math. Math is like any other skill, you learn the basics as a guideline. There are not many assumed truths in math that don't need justification and fucking PEMDAS ain't one fo them. PEMDAS is just a convention and ordered that way because it's sort of catchy

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>>130731955

>>130734611
They are completely interchangeable, I fact you will never see ÷ used in a mathematics textbook about algebra courses. I was a physics major and math minor and I can tell you I haven't seen ÷ used in a textbook since high school.

>>130734721

you're assuming too much. like the denominator has the parathessissess. who knows, it's written like a fucking retard. commin core 101

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>>130727518
I have to admit its been 26 years since algebra but am I wrong when i say

20 divided by 5 equals 4
and 2 multiplied by 2 equals 4
and then 4 multiplied by 4 equals 16?

I know I get confused about a lot of stuff but eventually as dumb as I am I'd like to be able to help with homework in 8 year or so.

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>>130727518
I was showing my little brother how to do a subtraction problem once, and he said to me that I wasn't allowed to carry because there's a better way. He showed me that they split the number into smaller pieces, subtracted them all separately, then added the results. No wonder so many kids fail high school math, you can't finish a test in an hour when you've been taught simple math that takes 4x more steps than it should.

Pic related is how it went.

>>130727518
Multiplication and division are the same operation just as addition and subtraction are. All these people saying pemdas and arguing that m precedes d are retarded. You could easily rephrase any division as multiplying by a fraction and your precedent rule falls apart

>>130734721
>takes the time to rewrite the equation so it's a fraction
>ends with division the way it was originally written
You don't need to take that step but I guess it'll show people you can't just put everything past the / in the denominator.

>>130735594
>Break apart the numbers to make a ten

But how will that help them in base eight?

your all wrong cus the numerical entanglement of the fraction must be taken into account, thus the inline division becomes a fraction - but only in the inverse sense of the parentheses. It becomes even more difficult when approaching this algebraic equesion from a refractionary perspective because of its spinrate relative to its superpositioned number 4.

You faggots are amateurs. Anyway, both number 1 and 16 are correct. But also remember the midline potentionality of the number 8.

8 is the real awnser.

>>130735715
I'm literally trying to show its the same thing. I could leave it as a fraction and it is the same answer.
Fractions are division, how don't you autists comprehend that?

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>>130735594
b-but 26+17=43

There's no need for any more than that?

26
17
3 carry the 1+2+1=4
and then 4 and 3

How did we go so wrong man?

There's the right way to do it, then there's the way we do it in our head quickly. This isn't even a case where we have to do it in our head the wrong way. We just do it the way its supposed to be done.

If you're in a department store and something is $169 and a 40% discount then its okay to round numbers. Otherwise its just chicken shit

Do the numbers in your head the easiest way possible. $169 becomes $170 and then 10% is $17 and 17x4 is 56 and then 169-56ish is 113-115ish

>>130735526
usually, you would do the order of operations so you do the problem in parentheses first, then multiply by 5, then divide by 20, getting the result of 1. instead of thinking of the bar line as a division symbol, think of it as making the expression into a fraction. so 20 over 5(2x2) e.g. "5(2*2) / 20 = 20/20"

You could equally justify doing the problem in the order where you do 2*2, then you do 20/5, getting" 4(4) which is the common core way, which ends up as the result of 16.

1 is the only right answer because the privilege of operations is as follows :

paranthesis > mutiplication / diversion > rest

what the actual fuck do they even teach you

>>130736926
All calculators ever will show 16

itt: brainlets

>>130708023
>>130729820
Pretty sure that is the lesson m8. Look at how young the kids are.

>>130736662
I'm agreeing with you, I know they're the same thing, but some of these people are too retarded to understand how to turn division into a fraction, I was pretty much thanking you for showing that it doesn't matter if you write it as a fraction or in a linear format, as long as you follow basic math principles, you get 16 as the correct answer.

>>130736926
A lot has changed. IIRC we used to do things in the order we read them. I'm not sure how they got 1 unless they are implying the parenthesis could also be divided by the first sequence. If I'm making any sense

I can see doing it backwards to try to simplify, again if I'm making any sense, but what's the point. There's literally zero reason to try and solve complicated math quickly this day in age when we have machines that people use to get the job done professionally. If it takes an extra 10 seconds to solve then who really cares?
Again, I'm not trying to break any balls. I just don't understand why students have to solve a problem the same way they do in their head.

4x4=16
That's the way we did it and it worked
now you have to do...
4+4=8+4+12+4=16
Why complicate shit when it isn't needed?

It's actually:
(20/5)(2*2)

(4)(4) = 16

It helps to add the parentheses AKA brackets to the operation that doesn't have any to avoid confusion.

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>>130737379
and a calculator is just that, a machine programmed by humans incapable of taking into consideration all of the variables different syntax issues.

Some people maybe have intended for the problem to be a fraction, vertical like my picture which obviously equals 1,

but just because this one is horizontal you can get 16

step it up, brainlet

if you get 1 you should probably learn to flip burgers.

>>130738153
Funny, I was thinking food service was the only suitable job for people who believe it's 16 or 1 since they're incapable of thinking for themselves and are stuck in their ways due to poor schooling.

>>130727518
Nothing, just bad teaching. Under PEMDAS the order is that multiplication and division have equal weight and read right to left. The acronym is just a learning tool, obviously.

>>130727518
Fuck you its 16

>>130738946
*left to right

The answer is still 16 unless >>130738109

Numbers don't really exist, so...

>>130738028
Stop adding parentheses, you don't need them, that's how you get into trouble.
>>130738109
All math, aside from elementary addition and subtraction, is performed horizontally. Try and make your argument in a college level math course and you will get btfo. I couldn't imagine people like you trying to figure out what to do with derivative operators or definite integrals, you'd probably try and make it into a fraction incorrectly like you did in your pic and divide everything out.

>>130732135
Subtraction isn't even a real operation. Subtraction a number is actually adding the opposite number (not sure if opposit is the english word for it). Basically:
4 - 3 is actually 4 + (-3)
So neither subtraction nor addition happens first. They must be resolved from left to right.

>>130739209
The answer is 1. Order is parentheses first. Then the multiplication into parenthesis. Then wrap up left to right.

>>130732135
Like the other guy said, subtraction is ACTUALLY adding a negative number.

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>>130727518

Effectively brainwashing,dumb down & "Short Circuiting" the person.

1) http://archive.4plebs.org/pol/thread/115974071/#115974071

2) http://archive.4plebs.org/pol/thread/116055379/#116055379

Archives:

http://archive.4plebs.org/_/search/subject/knowledge%20bomb/username/anonymous5/tripcode/%21%219O2tecpDHQ6/

>>130740016
"multiplication into paranthesis" isn't anything other than regular multiplication and so does not take precedent. First the paranthesis is resolved and we have
20 / 5 * 4
Then division and multiplication are resolved from left to right and we get the anwer of 16.

>>130738696
Burger math. lul.

>>130739407
Ok, I have removed the parentheses which following PEMDAS still evaluate to 16.

20/5 2*2 -> 4 * 2 * 2 -> 8 * 2 = 16

Furthermore, you should be able to rearrange the terms like without changing the end result like this:
(2 * 2)20/5

which still evaluates to 16 no matter what.

>>130739828

There is a very cool alternative way of solving all these things tho. lets take your subtraction for example. Try it out... hold up 4 fingers (no thumb), then bend the pinky and the ringfinger inwards, then the index finger. Do it in exactly that order.

Youll be amazed. Nothing as mysterious or fun as math.

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https://www.wolframalpha.com/input/?i=20%2F5(2*2)


Lets just put an end to this thread.

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>>130727518

>>130740693
Gee I'm sorry for dropping math in a thread about math.

What?
How can it be 1?
Am I retarded?

>>130740682
Bruh you removed the parentheses that are IN THE ORIGINAL EQUATION. I said don't add parentheses, as in ones that aren't there in the given equation because it dicks you up and thats how people end up getting 1. I've been saying it should be 16 the whole time you dolt IDs are a thing on this board.

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>>130740878

you actually did it, didnt you.

>>130740695
Putting this into calculators doesn't really help because the result depends on the way the calculator is programmed. But wolframalpha is right in this case.

>>130741214
I'm not retarded you know.

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>>130741286

well... it was real in my mind.

>>130739407
>All math, aside from elementary addition and subtraction, is performed horizontally.
Are you an idiot? My picture is just a visual aide, of course all math is done horizontally especially on the computer. What way the expression or problem is expressed up or down doesn't fucking matter. I'm saying 20/5(2*2) could be seen as a fraction. I only used a fucking baby fraction because some people with poor math skills don't see division as fractions and only have experience with integer fractions as ratios. They don't think about the fact that negative exponents, percentages, decimals are fractions.

>>130741371
Better luck next time buddy.

>>130740695
But that's regular math, not postmodern math where there are many answers.

>>130730184
There's so many people here that aren't understanding this and think they can do
Math. This is scaring the shit out of me
As a chemist. I don't want any of you fucking people near what I do

>>130740864
I don't even want to see the method.

>>130729067
this.

ITT retards that think you must always solve left to right without knowing about mathematical properties such as commutation and association.
>"B-BUT IT'S ALWAYS FROM LEFT TO RIGHT!!1 THAT'S HOW I LEARNED IT! :CC"
No you fucking retards. No. You can swap it as much as you want as long as you don't mix terms.

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Okay, so i dont know shit about math and i have no clue wts your all saying. But when it comes to common core, here is a very interesting interview with Joseph P Farrel about it;

https://www.youtube.com/watch?v=kLDD7uHXphk

I think a lot of you will like it.

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>>130738109
The way you have drawn it would be displayed in a single line like this.

20/5/(2*2)

>>130727518
ever heard of parenthesis?

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>>130727518
did you know teachers unions are communist...and pathetic...and they think as communists they can dictate teacher rulz to parents that pay for communists to educate children

>>130742252
I wanted to listen but he sounds like a fag

>>130741437
>says I'm an idiot
>puts (2*2) in the denominator of his cute little fraction when it's not supposed to go there
If the (2*2) was meant to go in the denominator it would have been grouped with the 5 as
>20/(5(2*2))
But it's not, and that's what I mean by adding parentheses that aren't there, it changes the entire equation and gives the wrong value. And I was saying you shouldn't change it into a fraction because dumbasses don't know how to turn a division as a fraction the right way and end up getting the wrong answer because of it. Don't duck with an equation unless you actually know math.

>>130742404
How would you display the way I drew it on a computer without using vertical fractions, for example on a computer with no fancy math software of an simple calculator.

>>130742018
>chemist
>worried about people knowing math
What's the matter, calc 2 too hard for you?

T. Physicist

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>>130742785
did you know some dumbfux will deny the communist influence on American education and vote for Hillary?

>>130742979
20/(5*(2*2))

Or
20/[5*(2*2)]

Or
20/5/2/2

>>130742979
with an extra parenthesis that do not exsist in this case.

>>130742156
PEMDAS

>If the (2*2) was meant to go in the denominator it would have been grouped with the 5 as 20/(5(2*2))
that is untrue, and there is no standard or convention that says it would have to be. You're expression is clearly defined, and you did it that way so it fits your assertions.

I don't fucking understand, if with the classic method people built precise machinery, robotics, buildings and even went to fucking space, why the fuck would you want to change it now? Just take a simple physics equation, like the curve of a proyectile. Wouldn't Common Core change the proyectile arc completely in the result of the calculus?
I just don't know who in his sane mind could approve such stupidity AND teach it in the schools. Imagine the disaster that that would cause in future generations.

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Guys, i think i solved the problem. Makes any sense?

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>>130729252
>>130730982
Classic

>>130742979
no fractions?

20*0.2*(.125*.125)

>>130743734

Watch this mate >>130742252

They are intentionally dumbing down future generations. The elites don't go to public schools that use common core. Get it?

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>>130743664
thinks 4chan is kewl

forgets communists and socialists suc dic willingly

COMMUNISTS AND SOCIALISTS HAVE INFECTED 4CHAN

it's the life we live...

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>>130743644
No, you fucking retard.

Brazil 2.0 when?

>>130744468
lol a nigger thinks it can do math. of course you would like common core.

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>>130744203
I want to make it clear, I'm arguing for how they arrived at 1, not that I believe it to be 1. There a big difference here. At first glance, I got 16.

>the old way = 1
The picture says the old way, but only I have given a way in which they might have arrived to 1, and that is them seeing it as a fraction.

If you know "the old way" that the picture says, please post it here. Because the common core way says 16, and /pol/ hates common core.

>>130743149
Well I kept listening and this Farrell guy is good just the host is a fag.

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>>130736921
umm anon 17x4 is 28 + 40 = 68

>>130744788
hey retard, look at the fucking picture. the problem is that THEY ARE SAYING THAT BOTH ANSWERS ARE EQUALLY CORRECT.

WHAT THE FUCK IS THE POINT OF MATH IF ITS BASED ENTIRELY ON WHAT YOU FEEL IS CORRECT?

>>130742979

20/(5*(2*2))

That would be one, but that's not what's written

20/5*(2*2) is what is written, by putting it in the denominator you threw it into parenthesis for no reason.

>>130744788
I am assuming they think "the old way" and brackets first means you do the 5(2 * 2) step first because you are left with 5(4) and since it's brackets...

Which is wrong, but the only thing I can think of.

>>130744724
I'm not surprised that a burger can't. That may be the reason you import engineers from all over the world.

>>130745031

Well you should first realize that this shit is posted over and over again, and each time it's shooped differently. The original wasn't even about common core I'm pretty sure.

>>130745031
The square root of 4 is 2 and -2
OH NO! IT'S ALL SUBJECTIVE! MATH IS FEELINGS NOW!

>>130734835
you're retarded.

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>>130745236

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>>130744788
when you type...I hear "i'm a dumbfuck that daddy touched too much in my penis area"

"and I want free stuff"

then I hear "call me Caitlyn"

>>130745031
Hey, retard, read the fucking thread that is what I have been arguing>>130732585
the entire time, but people like >>130742794 strong insist it's 16.

I think you misunderstood I am not asking for how it's 1 because I believe 1 to be the only true conclusion, I want to know how they ARRIVED at 1 because people >>130742794 are arguing syntax so my theory they they interpreted it as 20 over 5(2*2) is wrong because of the way it is written.

Basically show me the old way, if there is one besides my own guess.

>>130744468
>goes ahead and does the math wrong
>calls himself smart

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seriously tho... if all of you guys cant even agree on this simple thing, why the fuck should i get to know math in the first place? Seems like a waste of time. Think about the number of shitposts you can make instead of spending years on foolish math.

Ill just use my calculater, thx.

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>burger education not knowing that multiplication and division have same precedence

>>130735594
So how does this even remotely work for numbers larger than four digits?

I think there are a lot of people screaming PEMDAS without realizing that MD and AS have the same precedence and you do them the order they occur left to right. It doesn't mean you do all multiplication first, idiots

>>130745706
How is it wrong? What property has been broken? You just think that the watered down method you've been being teach as a child is the correct one, when it's not and it isn't based on any law.

>>130745236
lol wow you seem to be correct >>130745501
>>130745256
niggers are so fucking stupid
>>130745553
kill yourself retarded white boy. you have no fucking reason to live beyond this shitty website and its gonna be gone before 2018 hits.

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>>130745877

>>130727518
In the USA, the answer has always been 16.

And I've had this discussion before, in physics, the answer is 16 in any country.

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>>130744468
good to know that when I have 1 apple left I also have 16 apples left

>>130727518
I don't care how you do it in your head the only thing you care about is doing it right. I've known many teachers that try teaching their kids all the same but the human brain is not all the same.

>>130745794
>Leaf not understanding parenthesis

>>130746396
>Comparing additions to multiplications

>>130744468
You are 500 years after the western world.

>>130729067
Parentheses are too much of a problem for some. In reality, the proper answer as stated would be 16, although there is ambiguity.

>>130746083
>kill yourself retarded white boy. you have no fucking reason to live beyond this shitty website and its gonna be gone before 2018 hits.
So basically you're too stupid to argue why it's either or and resort to edgy insults and corny ass inane non sequiturs.

Again, we know the common core way: which is 16 (and we know pol hates common core). Now, who besides me is going to put forth a theory for how the "old way" which arrives at 1 is?

>>130743664
Yes that is true otherwise parentheses would be pointless, they exist expressly because of situations like this so you know whether or not it goes in the denominator.

>>130746672
Nah, I'm just at the level EVERY UNIVERSITY teaches. If you want to have your children just memorize a quick way to do math without understanding, that's not my problem

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>>130733534
>reddit spacing
>calling others summer children
lurk for 3 years before posting.

>>130746698
holy shit you are a master at ignoring the point and deflecting reality

have fun lol you wont last long

>>130727518

>made fun of homeschooled kids as a kid
>common core

Well fuck, guess they get the last laugh this time.

>>130746947
>Doesn't understand basic math
>Says the other is denying reality
The average burger, everybody

>>130727518
The insanity has no bounds

>>130746947
>holy shit you are a master at ignoring the point and deflecting reality
There's your problem, you're only reading what you agree with. Reading the fucking thread. Some people strong insist it is 16, some 1, and others say it can be both.

And we're still missing the "old way" mentioned in the picture, no one besides me has put forth a way in which they might have gotten 1. So groups, the "it's 1" and the "it's both" are arguing from their ass.

Saying I'm missing "the point" is completely meaningless in this situation, because there is no real point since everyone other person has a different opinion.

RPN style, faggots: (*(/ 20 5) 2 2)

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>>130747126
no parent would willingly send a child to be educated by the communist teachers union in America...unless you as a parent are a socialist or communist piece of stinky shit

>>130747437
And that's why a second set of parenthesis are needed.

>>130747152
lol this coming from you
>>130747437
well i think the point collapses when the image is fake. im not sure if they teach this in schools, but if they do its only more proof that public schools are for eliminating low-IQ whites.

>>130747437
the old way is achieved by PEMDAS, the common core way by PEDMAS

>>130747756
"NO U"
Learn what an axiom is you fucking retard before going "muh pemdas"

>>130728543
More than what they already are? Fuck they already so stupid that they voted Trump in. I mean fuck how much further in the toilet can it go? Plants love electrolytes?

>>130727518
common core (THE CORRECT WAY)
20 / 5 (2 x 2)
20 / 5 x 4
4 x 4
16

how to get an answer of 1 like a retard, using common core logic
20 / (5 (2 x 2))
20 / (5 x 4)
20 / 20 = 1

>>130729286
order of operations.

1. Inside parentheses
2. Division/multiplication from left to right
3. Addition/subtraction from left to right.

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>>130747782
when you type...all I hear is ^"i'm a dumbass" I sometimes seem intelligent but I am mostly a dumbass"^

>>130730184
Order of operations...
>Parenthesis -- Exponents -- Multiplication / Division -- Addition / Subtraction

The Commutative Property states that going left to right or right to left makes no difference.

Order of operations is all that matters.

>20 / 5(2x2)
>20 / 5(4)
>20 / 20
>1

Come on people, this is literally forth and fifth grade arithmetic.

>>130746861
I think you don't really see the bigger picture but try to ask yourself why people developed a system that we today know as order of operation.

>>130748421
Correction Multiplication > Division , Addition > Subtraction.

>>130748421
this sums it up
fuck me the retards in this thread
this is basic maths

>>130748494
I think it is subtraction first, then parentheses, then multiplication and exponent. Yup thats it.

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>>130748494
^it thinks it said something profound^

^it chokes on uncut cheesey dic^

>>130748425
same, it's not like that anon asked a question that i answered or anything. feel free to keep goin how you're goin

>>130748211
Rather be stupid than a traitor like you

>>130748711
no you retard
wtf is wrong with you
multiplication and division doesn't matter
they have the same priority, therefore you go from left to right

>>130748200
learn what a noose is before you embarrass yourself anymore faggot

>>130748711


LOL

>>130748539
It's a way to simplify it and make it easier, but doesn't give you the correct answer and creates the retards of this thread.
Teaching math using only conventions to speed it without explaining the process is just a way to create future McDonald employees who can add and multiply but don't have any idea of how it works.
The "old way" creates and rewards non-thinking retards, the "new way" filters them out and forces them to use a few neurons.

>>130748945
I don't think you are right. You might want to check that out. Are American education is good.

>>130748494

Secound step

>20 /5(4)
is the same as
>20 / 5 * 4

Do you see any brackets telling you to do 5*4 first? Left to right. 5(4) isn't special, it's just 5 * 4

so

>20 / 5 * 4
>4 * 4
>16

>burger education

>>130748494
multiplication and division have the same priority
if both are included, you go from left to right
fuck me, just type the equation into the calculator and you will get 16
holy shit dumb americans

>>130748494
I'm a 38 year old electrical engineer. Trust me, the answer is 1. You people are retarded.

Stay in school. Just say no to autism.

>>130748967
You don't have any fucking idea of what you talk about, as expected, so I don't care what you think. You can't argue anything past "IT'S WRONG CAUSE I DO IT THE OLD WAY"

>>130727518
16 is the only correct answer. Conventional holds that after parenthetical expressions are evaluated, operations of the same order be performed in the order they are written.

t. mathematician.

>>130749164
No no no, calculators are for Eurofags. We know more.

>>130749094
>Are American education is good
>Are
>Are
yep, sums it up

>>130748494
This is the only correct statement. All brainlets leave the thread if you don't agree with this method

>>130749243
*Convention

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>>130748901
you are awesome..

at being the dumbest dumbfuc on 4chan tonight...

>>130749296
What did I speak wrong?

>>130727518
fake image aside, if you wanted to represent 20 over the rest of the question you would write it as 20/(5*2*2), If you want it separate you should write it as (20/5)((2*2). Math notation should be clear, no reasonable teacher would set up a question the way the picture shows.

>>130749197
I trust a scientific calculator more than you desu, and it says differently

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>>130733534
Take your fucking (you)

>>130748494
>>130749197

notsureifsrs

Yes I am..

I've been bamboozled, good job troll.

>>130744468
Anon you're right but /pol/ is a place where ignorance is celebrated and thinking (like what common core promotes) is discouraged. Literally why America will never compete in the future and is destined to become a third world shithole.

>>130746674
Are you a fucking moron? You group the goddamn divisor e.g. 5*(2*2) = 20, 20/20 = 1. That's why when i write w/mK it doesn't mean watts-kelvin per meter, it means fucking watts per kelvin per meter. You fucking morons I hope god kills us all.

>>130733741
They do not have equal precedence which is why they get multiple answers. The standard is multiplication first.

To put it in perspective, lets say the difference is 15 units (1 or 16, depending on your math)

Medicine, financials, engineering, navigation, all can be totally fucked up with a difference of 15 units. like way fucked up.

>>130749476
Who needs to think when we have computers? The Google tells me everything I need to know.

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>>130749416
thanks bro

>>130749476
That and the ol' 60%

>>130733534
albeit multiplication and division being on the same level, theres no order so it has to be left --> right

>>130749594
The answer is 16, type it into a calculator lol
Why is anyone even arguing this? I think people are just trolling tb h

>>130748337
This is not fucking correct the / operand is a grouping symbol for the divisor

>>130749675
Americans don't understand mathematics

Also, a calculator wouldn't give you a difference of 15 units. I mean, would that mean that one time i tried the equation it'd be 1 and the other time it'd be 16?

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>>130749646
np

If you are 18+ and don't look at OP and don't see 16 in like one microsecond, remove yourself from the gene pool immediately. That means kill yourselves.

>>130727518
Your image is fucking bullshit.
The old way was 20/(5(2*2))
Which equates to one.

>>130749810
16, yes - the answer is 16
16
16 says the calculator
16

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>>130727518

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>>130747782
Ok, finally. So they arrived at both answers using PEMDAS-- Do we agree that in PEMDAS the order of multiplication and division is not matter?

So, to get 16 they go: "2*2 followed by 20/5, then 4(4)"
and to get1 they go: "2*2 followed, by 4*5, then 20 divided by 20"

Or am I mistaken on the way they arrive at 1? Because as >>130742794 claims if they wanted 5(2*2) in the denominator they would have written the problem
>20/(5(2*2))
and so the only possible conclusion is 16.(I don't necessarily agree with this, but this is what he and some others 16 fanatics are arguing.)

>>130749930
>I don't necessarily agree with this?
You don't agree with correct maths...?
Use a scientific calculator bro and learn some maths rules

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>>130727518
The only correct answer to the problem in the picture is 1. This is what happens when you let people learn arithmetic with calculators, they don't learn the correct order of operations. Read this to see why I'm right: http://downlode.org/Etext/power.html

>>130749028
you'd think they would ask themselves why would bill gates drop so much money on this shit if it didn't work. EVIL

>>130749731
You're not typing it into the fucking calculator correctly you dumbfuck. It's 20 / (5*2*2) in correct mathematical notation, you're supposed to fucking group symbols under the / operand. I swear this shit is only because they stopped using fucking chalkboards to teach you retards it used to be written:
20
----------------------------------
5 * 2 * 2

so retards like you understood.

>>130744468

Wow you're retarded. I know most others are just trolling by saying it's 1, but you actually made a fucking image.

>"Fractions are divisions between real numbers"

In this case, each number represents what you can think of as a final unit in the problem. So 20 is just 20, 5 is just 5, (2*2) is 4.

See how (2*2) is 4? Because it's in brackets. You CANNOT think of 5(2*2) as a single uncalculated number. It is NOT (5(2*2)).

By writing it as the denominator, you are saying (5(2*2)) which is not what is written. What IS written is 20/5. One number, divided by another, and then that is multiplied by yet another.

It cannot be 1. It just can't. You monkey.

>>130727518
But the one on the right is correct unless 5(2*2) is all underneath of 20...

>>130750194
Multiplication and division have the same precedence, if both are there go from left to right
Simple maths, retard
The answer is 16

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>>130749646
I hope you finally get into your moms panties...

I know you have wanted that for a long time...

>>130750127
>You don't agree with correct maths...?
No, because as we've established PEMDAS(The order of operations) is not an axiom and there are issues of syntax sometimes and no concrete standard for the language of math exists

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>>130749891
Thank you for not being a complete moron. Have a (you).

>>130750299
You're clinically retarded, you must be trolling
KYS if you're really this stupid, literally a waste of resources to humanity

>>130749955

This.

>>130750303
You can think of 5(2*2) as a single uncalculated number. that's your problem here. 5(2*2) is the same thing as saying 20.

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>>130750478
Tfw you've always looked up to British education and you learn they're nothing but burgers with tea and crumpets and a dumb accent.

>>130750299
Its 20/ 5 * 4
brackets first, vegetable
then go LEFT to RIGHT
that's it, good vegetable

>>130750671
Don't forget their teeth.

>>130749731
People wanna be edgy and since there are several correct ways people gonna disagree but trust your calculator here because it's programmed correctly.

>>130749594
Convention is all multiplicative operators are on the same priority, therefore if more than two are present it's left to right, you twat.

>>130750783
THIS fml, atleast all Americans aren't retard

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>>130730184

>20/5(2*2)
>20/5(4)
>20/20
>1

The parentheses are still there, retard.

>>130732472
Why are so many retards here unable to understand that subtraction is negative addition and division is multiplication by values less than one (1). There is no fucking "implied parentheses" in that equation. The answer is 16. The only way for it not to be requires rewriting the formula

>>130750299

20/5 is a fraction. That's why you do it first.
1/2*10
Is 0.5*10 (a half)

20 / 5*(2*2)
20 / 5 *4
mult. and div. considered equal in pemdas.
4 * 4
16

common core is a fucking atrocity, but this should be correct in this problem.


problem with common core and standardized testing is that it stresses one way to do a problem, then rewards students for memorizing the steps. what is lacking here is the crucial idea of why we do a problem and how we formed the equations. American school systems have changed math standards too many times since the 60s, degrading each time.

>>130750560

Obviously that's the same thing as saying 20, but that is NOT what is written. You're not even talking about the same math problem now, you can't just pull it out and think it's the same thing what the fuck.


If I give you 20 / 5 * 4, you're telling me the answer is one? Just because you decided to do 5*4 first for no reason?

I am not saying do 20/(5*4), I am saying do 20/5*4. Yes it is different. And what is written in the OP is 20/5*4

>>130751155

for

>>130750613

>>130750924
20/5(4)
Yes, the brackets have now been COMPLETE
so let's do the calculation. Ah yes there are only multiplications and divisions left, therefore we go LEFT TO RIGHT. And thus, the answer is 16. Learn what brackets actually do before looking like a fool. 5 and 4 would have been in their own separate bracket if this would equal 1

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>>130751099
>implied parentheses"

They're not implied when they're explicit. They don't magically disappear just because you worked out what is inside of them.

See

>>130750924

>>130730184
its true , i think

>>130751290
see >>130751247

Literally the only reason this is being disputed is because of how it is written. It is 20/5 * (4*4) not 20/5(2*2)

>>130750783
Who the fuck taught you convention, your fucking 5th grade math teacher while she wasn't have sex with the guy sitting in front of you? The fucking convention has always been to GROUP THE DAMN DIVISOR in cases of ambiguity, e.g. the fucking OP. If it said (20/5)*(2*2), that would be 16. You fucking autists don't realize by your logic 20/5*2*2 would be 1, 20/(5*2*2) is 1, but because NIGGERS 20/5*(2*2) is 16, even though 20/5*4 would still be 1.

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Reminder that 5(4) is not the same as 5*4

>>130750924
You simplify what's in the parenthesis. It doesn't mean that you multiply it with the number next to it after that. The parenthesis is simply a stand-in for a multiplication symbol at that point. And since you have to go from LEFT TO RIGHT doing division and multiplication first, you'd do the division on the left first.

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>>130750731
>>130750613
Ok so there are two people here that agree with me that you can look at it as a fraction, that being that the problem of 20/5(2*2) can be seen as 20 the numerator and and 5/(2*2) in the denominator.

But how do you respond the claim that, indeed, if they wanted you to interpret the expression that would it would be written
>20(5(2*2)

My argument against this assertion is that they're bolstering their own conclusion with red herrings of convenient extra parenthesis that don't exist, but they assure you EVERYONE does it this way and that it is a universal truth that this is how it is done.

>>130751417
see >>130751247

>>130751247
>Yes, the brackets have now been COMPLETE

God damn you're a fucking idiot. It's not complete since you still have to multiply what is *inside* the parentheses by what is next to them. How the fuck do you think FOIL works or did you fail algebra?

>>130728438
They did the same shit to me in the 80's. They thought it was smart to "prepare kids for cursive writing" by not teaching them how to print. So instead of learning how to print letters properly we learned to print them with the little tails and ramps of cursive letters, but just not connect them. So my printing now looks like shit and I never use cursive. Fortunately there is very little need to write anymore other than taking notes.

It's a strange curse to hate writing on digital tablets but also have horrible penmanship.

>>130750910
I'm korean.

>>130743005

I'm just gonna cry in a corner and pretend like I can maths

>Biologist

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>>130750359
Anything to the right of the slash is explicitly parenthetical, as defined by the distributive property.
20/5(2+2)
20/(5*2+5*2)
20/(10+10)
20/20=1
So tell me how using a calculator in math class since first grade helped you? Can you even multiply polynomials?

>>130751417

There is zero ambiguity. What is written is written, it's fucking basic math it's black and white.

If they wanted it to be 20 divided by the result of 5 times 4 the brackets would have been included. They were not, so it is not.

>>130751624
>>It's not complete since you still have to multiply what is *inside* the parentheses by what is next to them
YES BUT NOW IT HAS THE SAME PECEDENCE AS ANY MULTIPLICATION AND DIVISION
fml, learn basic mathematic rules

>>130751541
This is why the UK is doomed, fucking Ahmeds. Just go blow something up; maths is just too difficult for mudshits.

>>130751624
and because it is on the RIGHT hand side of the equation, it goes last

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Here you go retards it's purely how It is written.

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>>130751774
I can't believe I'm saying this but the kekistani is right.

>>130751846
LOL, can't say a valid argument so acts like a dumb American. GG fag, I'm out of here, you're making me dumber

>>130729286
how the fuck is 4*4 = 20 you fucking morning retard fucking faggot nigger

>>130745806
No really, how does this shit work with two numbers like 843 + 768? What about multiple numbers at once like 433 + 742 + 2467 + 1234?