/beg/ Burger education general

>>134421729
oh and for anyone asking the answer is 1

5(2*2)=20

20/20=1

>>134421729
I am 100% sure the teacher did not understand basic mathematics like most elementary school teachers. This is not common core's fault.

>>134421729
Does the US really not teach to do brackets first?

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>>134421729

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>>134421729
1111
1111
1111
1111
1111
1111

>>134421911
if you're moving the denominator to one side you have to start with (equation)=0. hat ends up with 20/0 when moved
does not equal 1

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>>134422356
Welcome to the thread American hope you will enjoy your stay you might even learn some basic math

>>134421729
20/5(2*2)
20/5*4
4*4
16
How can you honestly fuck it up so bad.

>>134422567
>>13442278220/5
20/5(2*2)
20/5*4
4*4
16
This is correct, OP show your flag burger.

>>134422077
haha this shit is like the enfranchisement test from louisiana

Wtf I live in America and still in school and never seen/ have been taught this bullshit ever before, not even my younger brother deals with this and hes in 6th now

So either these pics are fake to me America look fucking retarded or it's just kikes trying to be funny

>>134422050
Yes they do, I was taught this

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>>134421729
>really makes you think

huh.. so this is how you subtract

2x2=4
20/5=4
4x4=16

What does it mean by both are correct? Where does 1 come into play?

It's 1,
The 5 acts explicitly on the 4, it is not multiplication, that is why after taking away the brackets you do 5(4) before division.

>>134423259
1 comes into play, when you are so retarded, that you assume 5(2*2) comes before 20/5.

>>134423259
Op has tried to move the denominator to the right, therefor missing the key step of the equation starting with =0 as >>134422356 pointed out. Therefor, OP is a prime example of the US' education failure.

>>134422782
this is what I got

>>134423259
Because little burger, division and multiplication have the same order so they have to be done first. thats why the question could be both 16 or . But usually you do brackets first which is why the right answer should be 1.

>>134423394
1 comes into play when you aren't a subhuman and can understand the order of operations

>>134423393
They didn't write the multiplication sign, because they wanted 5(2*2) to come first. They wrote it like that because mathematicians are lazy. The answer is only one if you express the equation as
20/(5(2*2))

>>134423259
it doesn't

the people in this thread cannot into math

the answer is only 16. the reason they are confused is because the question is poorly formatted.

>>134423393
this for the love of god.

you could write this as 20/(5(2x2)) but it should be known so they don't, but because half of you are so retarded I had to.

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>>134423578
>>134423537
Maybe you should listen to countries that rank higher in the OECD than murica.

>>134423733
>t. new Norwegian

The answer is 1. Learn order of operations

>>134421729

pretty sure 16 is the correct answer anyway. parantheses first then left to right, e .g.

20/5(2*2)

20/5(4)

4(4)

16

>>134422206

arrays are rows x columns, so there's nothing wrong with points being docked for getting it backwards.

>/pol/ in charge of basic shit

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>>134423868
Welcome to the thread Euroman hope you will enjoy your stay you might even learn some basic math

>>134421729
I think the correct solution is to have people stop writing questions out in ways that will never be relevant in the real world.

Nearly all ambiguity is removed when people use more brackets.

What kind of credentials do you need to become a teacher (elementary school, junior high, and/or high school) in the US?

>>134421911
yep the answer is one. ONLY one. They'll drop that common core crap (whatever it is) when their new bridges and skyscrapers start to collapse before they are even finished because they were dumb enough to let their future engineers believe that an easier method that gives a different answer is "equally correct"
>equally
Is that what it's about equality and "muh feels". In math class? jeeezzz

>>134424111
1. exist

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>>134424049
>>134423694
>>134424074
Sorry burgers, we all rank higher in maths. It's okay to be wrong.

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>>134423393
>pic related

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They are both correct. It's sort of ambiguous. There still are two competing conventions for the order of operations for multiplication and division.
>Do multiplications and divisions in the order they appear from left to right. In other words, multiplication and division have the same precedence. Then 20/5(2+2) would means (20/5)(2+2).
>Do multiplications first, then divisions. In other words, multiplication has a higher precedence than division. Then 20/5(2+2) would mean 20/(5(2+2)).
Of these two conventions, the first seems to be more common, but there aren't any international conventions on these specific mathematical notations.

>>134422782
>>134423455
Same. A little thing called pemdas would appearebtly be very helpful to a lot of /pol/lacks here.

>>134424372
How in the fuck are there two competing conventions? This is lunacy.

>>134421729
Literally segregate the schools.

This "common core" bullshit, and the constant demand for dumbed-down tests is because niggers are too stupid to pass, and their parents get rustled and blame the system. Not to mention that a classroom that's 30% niggers is full of distractions due to all the chimping-out, and also the teacher has to slow everything down to help them.

t., substitute teacher who taught in a ghetto district for 2 years

>>134424305
What, you couldn't write it out yourself so you had to use an online maths equation solver?

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>>134424274
We have to carry 40%(asians carry themselves) of the nonwhites remember we only 56% white

US whites are right where they should be.

>>134422077
Looks like an exercise to help children understand the modular nature of numbers.

>>134424274
If you look closely, Eesti is one step ahead in maths that you aussies. Don't worry though, maybe next year?

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>>134421729

Alright lads lets do some real math

Find x and y

>>134424274

US ranks way higher when you only look at say new england without the tumorous bible belt/midwest full of dipshit conservacucks dragging us down

>>134421729
Wait what?
20/5(2*2)=
5(4)=20
How is there 16 and 1?

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>>134424372
>multiplication and division are the same in the same order of operation in America
>we put a man on the moon
>1 is not the answer unless written like 20/(5(2*2)) or if you're retarded

Gr8 b8

Pic >>134424305

Provide children with free, defluoridated drinking water. Brains operate more efficiently when hydrated, fluoride has an intelligence lessening effect.

Provide the children with more opportunities to do things physically, aka exercise. Children who exercise;re smarter than those who do not.

Introduce meditation time. It makes the mind stronger and more resistant towards stress.

Bam, solved the problem.

>>134424495

math is all about consistency, for example order of operations doesn't strictly follow PEMDAS when programming, and obviously math still makes sense as long as you stick to a given convention consistently/know what the impact will be on your result

Hey euro, why is american education so interesting to you?

>>134421911
PEMDAS

>>134424630
New England is smart because it's white. Cali has a lower average IQ than Texas, and Kansas has a higher average IQ than New York.

>>134424715

>20/5=5

>bible belt education

trumpcuck genocide when

>>134421729
>both answers are equally correct
Sorry, I don't understand. Can someone explain this to me? How is it possible for both to be correct?

>>134424595
>real math
Come on dude, this isn't even hard.

>>134424715
how the fuck did you calculate 20/5 as 5? 20/5 = 4. dipshit.

>american education

>>134424778

i know that's always /pol/'s cop-out, but of course they conveniently skip over states like west virginia and kentucky, which are 95/90% white respectively.

conservashits fear education, it's one of many reasons why yankees outsource our cheap dumb labor to them and why our states are powered by information economies while theirs aren't.

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>>134424595

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>>134422952
>>134422782
>>134423455
>>134424457

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

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>>134424495
There is no fixed convention for interpreting expressions such as a/bc. One of the reasons is that historically, fractions were written with a horizontal line between the numerator and denominator. When one writes the above expression that way, one either puts bc under the horizontal line, making that whole product the denominator, or one just makes b the denominator and puts c after the fraction. Either way, the meaning is clear from the way the expression is written. The use of the slant in writing fractions is convenient in not creating extra-high lines of text; but for that convenience, we pay the price of losing the distinction that came from how the terms were arranged horizontally and vertically.
>>134424717
>Dunning–Kruger effect

>>134422206
>kid adds 5 3 times and saves himself time
>"NO! DO IT SO THERE'S MORE WORK INVOLVED!"

Females created this, didn't they.

>>134424715
B8

>>134424958
PEMDAS gives you 16. The division precedes the multiplication in both parenthetical and non-parenthetical aspects.You're multiplying the parenthesis, aren't you? YES.

16

>>134424958
>work from left to right
you should take the advice from you picture lad

>>134424715

20 divided by 5 is 4, not 5. 4 times 4 is 16.

The old way was never the old way. It has always been the correct way. People think PEMDAS is in the PEMDAS order but it's operation pairs in the order that they appear from left to right.

It can be PEMDAS. It can also be PEDMAS, PEDMSA and PEMDSA.

>>134424787
>>134424916
Fuck off, commies. Like I told the teaching lady the only numbers I need to know is 9 and 11.

>>134425174
it gives you 5(2*2)=20 first

>>134423814
Nice appeal to authority argument you dumb fuck

>>134425185
Multiplication comes before Division.
Multiplication from left to right.
Then Division from left to right.

>>134421729
BODMAS

Brackets
Orders
Division
Multiplication
Addition
Subtraction

>>134424958
The thing is your chart has M&D and A&S in their same respective tiers, which, if their orders are considered equal in their respective tiers leads to the answer being 16. Only when M takes precedence over D, and A over S does the answer become 1. Your chart and answer don't match. You basically ignored your chart.

>>134425174
P Parentheses comes first (4)
E No exponents so ignore
M Multiplication comes next (5*4)
D Division comes last
The answer is 1

>>134422077
How does one take 2 from 5? 8+5 is 13. That kid was right

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The convention in algebra of denoting multiplication by juxtaposition (putting symbols side by side), without any multiplication symbol between them, has the effect that one sees something like ab as a single unit, so that it is natural to interpret ab+c or a+bc as a sum in which one of the summands is the product ab or bc. Without that typographic convention, the order-of-operations convention might never have evolved. When one has numbers rather than letters, one can't use juxtaposition, since it would give the appearance of a single decimal number, so one must insert a symbol such as ×, and there is less natural reason for interpreting 2 × 3 + 4 as (2 × 3) + 4 rather than 2 × (3 + 4), but I suppose that we do so by extension of the convention that arose in the algebraic context. Likewise, because addition and subtraction constitute one "family" of operations, and multiplication and division another, and perhaps also because the slant "/" doesn't seem to separate two expressions as much as a + or − does, we are ready to read a/b+c etc. as involving division before addition. But when it comes to a/bc, where the operations belong to the same family, the left-to-right order suggests doing the division first, while the "unseparated letters" notation suggests doing the multiplication first; so neither choice is obvious.

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>>134425185
Are you ready to apologize?

>>134423054
kekd

>>134421729
Parenthesis DOES NOT put priority on the operations OUTSIDE it. You still divide the 20/5 before you would multiply the 5 * 4

>>134425042
In America we learn 20/(5(2*2)) = 1
20/5(2*2) = 16

> I guess you disagree with OP

Written like you say

20
-------- = 1
5(2*2)

>how written in OP pic, answer is 16, unless you're in the 1600s

>>134424717
>muh moon landing
So you did, by pouring enormous amounts of money at the project. You might have saved a bit of money if you could into math
https://www.youtube.com/watch?v=13qeX98tAS8

>>134424305
I just put it into a scientific calculator, the answer is 1 my dude

>>134424849
bump

Is it true that both are correct? Is this some law of mathematics that I'm not aware of? Because 1 != 16, which is what's confusing me about this. How can something be one thing, and yet not? Just trying to understand the reasoning behind what the teacher is saying.

>>134425290
>Multiplication comes before Division.
you dun goofed

>>134425363
True, I ignored my chart. I chose it simply for the PEMDAS which is the order. I don't know why they have the tier thing. PEDMSA isn't a thing.

>>134425779
PEMDAS, which one comes first, the M or the D

>>134425744
Can confirm. Both ways add up to 1.

>>134421729
It has made me fucking retarded

>>134425870
Multiplication and division are two sides of the same coin retard. They have the same priority which means you go left to right.

>>134424595
x=4
y=5
Easy

>>134425691
Notice lack of any sign between 5 and ().
it's akin to 1/5x, which is (1 / ( 5 * x) ), not ((1 / 5) * x)

>>134421729
Seriously just read the wikipedia article. The answer is 16. Multiplication doesn't come before division, no matter how much you spam PEMDAS. They're at the same tier, so you work across.

https://en.wikipedia.org/wiki/Order_of_operations

>>134426080
HOLY FUCK THANKYOU

Retards at pol can't into fucking math apparently. Inbreds

>>134425561
i apologize for trigger yuro horses and american trolls by telling them how to solve kindergarten problems.

It seems to depend on whether you express the the 20 divided by 5 as:

20÷5 or 20/5 (as in 20 OVER 5)

In the first case, the only number affected by the (2x2) brackets is the 5, and so you get an answer of 1, whereas in the second case, it is being expressed as a fraction and is therefore treated differently. both the 20 and the 5 are multiplied by the bracket, and you end up with 16.

>>134421911
Someone failed math

>>134424595
x=14-2y

2(14-2y)+3y=23
28-4y+3y=23
-y=-5
y=5

x+2*5=14
x=14-10
x=4

>>134426283
>>134426048

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>>134426080
God damnit, I AM a retard.
Can I at least blame this on the American education system? No?
Alright, whatever..

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>>134425759
I've explained multiple times, but maybe it was a bit too long if you're an ADHD American. It's not your fault anyway.
Rather than burdening our memories with a mass of conventions, and setting things up for misinterpretations by people who have not learned them. We should learn how to be unambiguous. We should use parentheses except where firmly established conventions exist.

>>134424372
>They are both correct. It's sort of ambiguous
Off yourself, please. You clearly haven't taken any math classes other than Calculus

>>134426166
20 / 5(2*2)
20 / 5(4)
20 / 5 * 4 <-- go left to right here, by order of operations
4 * 4
16

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>>134421729
My main complaint with the equation is it isn't clear whether that's a fraction multiplied against the parenthetical (thereby placing it in the numerator), or it being in the denominator. Huge difference.

They're not equally correct, the equation needs to be more specific. If you assume the standard notation (fractions are vertically placed), then the answer is 20 / 20 = 1, because of the order of operations.

It's a syntactic fault that is being exploited to make kids feel special. It's disgusting.

>>134424595
y=5, x=4

>>134426134
>>134426305
Norway you are running slow, come on my friend.

>>134424595
how old are you?

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>>134424630
you don't know what your talking about.

Wait a second. I'm seriously confused. 16 *IS* the correct answer, so why is the teacher labeling it as the CC answer?

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

WTF "old way" is OP talking about?

Oh hey look, another random /general/. Not just a thread concerning a topic someone would be interested in posting about, but a /general/. Ill be sure to sage it because OP is a faggot. Make a normal thread you fucking lebbit browser.

>>134426621
Judging by the level of maths he is using, i would say probably 12-13.

>>134422782

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

stupid mongol

>>134426376
Thank you for teaching me the math of your people. JazakAllahu khair

>>134424595
2x + 3y = 23
2x + 4y = 28

y = 5
x = 4

>>134426681
It's pretty basic simultaneous equations stuff, i learned that when I was about 13-14.

>>134421911
Fun thing is it's actually 16. Well at least by the rules we use in Russia.

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>>134421729
Take some of the cash used in the cia/nsa to fuck little kids, and instead teach them.

>>134426511
>My main complaint with the equation is it isn't clear whether that's a fraction multiplied against the parenthetical (thereby placing it in the numerator), or it being in the denominator. Huge difference.
No it isn't. If the fraction was in a parenthesis, then you would be correct.
> If you assume the standard notation (fractions are vertically placed), then the answer is 20 / 20 = 1, because of the order of operations.
I really hope you're just pretending to be retarded

>cross a border
>maths change

What a curious world we live in.

>>134426688
>---------
here is the wrong part from a stanpoint of estoniabro

>>134427011
It always was like that

>>134421911
How the fuck is it 1 nigger? If you have equal operations ( × and /) you go from left to right, not the other way around

>>134426831
Does Russian mathematics follow this? >>134426511

Here in burgerland, we follow (as far as I'm aware) the universal standard, where fractions are written vertically. Is that the case there?

>>134424581
>>134424581
>Graph also says immigrants excluded for EU
>Immigrants includes for US and we still win

If there is no multiplication sign it should be (5*(2*2) right?

>>134426645
the teacher is probably trying to say that (2*2) is part of the denominator, so it's becomes 20/20=1. maybe because she's using /.

more troubling though, is that the teacher is trying to point out that there are two equally correct answers here, when there can only one correct answer.

my thoughts and prayers go to the children who are being lead astray by this woman

>>134426831
No it isnt

>>134426826
Yeah i would say he is either a literal 12 year old or an adult with average maths skills and considers it to be a somewhat challenging equation.

As for the OP, the question is ambiguous. However by applying basic maths rules the answer is 16.

>>134426621
Im testing the claps, and checking they understand basic math.
So far not a single burger have answered it.

>>134426831
It seems to depend on how you interpret the way it's written. At first I assumed that the / was a stand in for ÷, because they were also using * instead of x. But then i realised that it could mean that the 20/5 was being expressed as a fraction. Basically, the teacher needs to be a LOT more clear with how her equations are written.

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>>134421729

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>>134426455
It's tough I know, but try to read my previous post>>134425520

>>134426726
You're welcome. If only the West hadn't constantly bombed and provoked Muslims. The Arab world would be a scientific superpower by now.

>>134427011
lmao "maths"

kid. Just because it's called "mathematics" doesn't mean it's fukkn plural. It's just "math".

>>134427147
Standard system > Metric

Either way there is only 1 correct answer. I'm not the brightest person when it comes to math.

>>134427178
You could do this in your head using a matrix faggot
>>134427205
You're a retard ffs it's painful

>>134427205
>If only the West hadn't constantly bombed and provoked Muslims. The Arab world would be a scientific superpower by now.
Nah. Algebra wasnt even invented by Arabs

>>134424595
x=4 y=10

>>134421729
> both answers are equally correct
this is how you end up smashing a billion dollar probe on the surface of Mars
or claiming there are 4736617 genders

>>134427246
What is colloquial language?

>cross border
>semantics change

This one makes more sense at least.

>>134427271
>t. Russian rape baby

>>134427332
You have just shown your country is fucking retarded, good job.

>>134427269
What does metric have to do with anything?
Also
>standard

>>134426831
Same here. Same everywhere. Multiplication does not take precedence over division, they are both treated equally left as the order moves left to right. The equation MUST have more parenthesis for the answer to be 1. In their absence the answer is 16.

>>134427332
pretty amazing how you get a wrong y value when you have the right x value

>>134423393
The idiots on 4chan will never understand this concept.

What is this PEMDAS cancer?
What happened to good ol' BODMAS?
GIVING AN ANSWER OF 16 BTW BURGERS

>>134427493
Maybe the burgers know something we don't

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>>134426887
Explain then.

First, you prove me correct.
Then, you say I'm retarded.

t. common core student?

>>134427356
If lots and lots of people say something wrong, it's still wrong. Truth is not subjective.

>>134424595
use gauss jordan elimination

>>134423782
This

>>134425744
>internet is smarter
>implying you did Order of OPs right

>all of these images are either out right fake, or super easy for anyone to make on their own and pretend it legit came from a school
>why is anyone replying

>>134427735
Because its become the International maths special olympics, fuck off leaf.

>>134427629
The purpose of language is to convey info. If the info is conveyed the way the speaker wanted, then it's correct.

>>134427735
That's not how you use greentext

Math*

>>134427561
Pemdas and bodmas is the same thing
brackets and parenthesis = ()
exponents and orders is ^

>>134427826
WE WUZ KANGS N SHEET

How do we fix the American school system?

>>134427735
>>134427884
>Leaf redemption arc when?

>>134421729
What for? they're Burgers in any case, not much to improve desu

>>134427203
That's not what the OP said though denominators have an invisible parenthesis around them, if it's not set up like a fraction you read it left to right

20/5×(2×2)
20/5×4
4×4
16

>>134427093
To omit possible confusion we always use ":" for division. We also write fractions vertically and don't use "/". At least that's how it work in school.

So by our rules OP example will be solved as follows:

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

20:(5*(2*2)) or 20:(5(2*2)) is a correct way to write a vertical fraction as one line. It will return 1.

>>134427931
Nice argument. I am sure you are an extremely clever individual.

If most of the time in American classrooms is spent arguing over something dependent purely on convention like this then no wonder why US education is so great.

>>134427826
Societies are built on a common understanding of language. If we ask you if the group will have enough meat for the winter and you reply "toenail banana" we're going to cut your throat.

>>134421729
Get rid of common core. Privatize education

>>134421911
Division doesn't exist, it's symbol stands for multiply by the reciprocal, so you do equations of multiplication and division left to right because it's really just all multiplication, the actual problem is 20 * (1/5) * (2*2)

>>134428048
Socratic method of math, it's great

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>>134422077
>>134422206

There is literally nothing wrong with these 2.

In the first one the kid is too dumb to understand basic algebra concepts or to properly read what the question is asking.

The second one the teacher only showed the other way of doing the 5x3 and nothing more.

You guys are going full reddit on these two.

>>134421729
>common core

thats not what you think it means retard

>>134427984
That's interesting, thank you for sharing.

Are there other rules like this, and is there a reason why your country has done it that way?

I can see why you've use the colon, though. Standard mathematics says that's a ratio, which is technically division.

(Genuinely curious)

I guess americans will have to homeschool their children if their schools teach that both answers are correct

>>134421729

Common core was meant to expand a child's conception of mathematics beyond simple memorization. It was supposed to encourage children to play with numbers in their heads and use numbers in interesting and unexpected ways.

However, this doesn't work because only a small segment of the population can do this. It's the same equalist bullshit of expecting everyone to go to college and magically increase their IQ points through the power of student loans.

>>134422206
This way they can dock points from the smart kids and drag them down to the level of the dumb kids and then claim that your system works because now the dumb kids are performing at the same level as the smart ones.

>>134421729
so i'm 31(also amerifat) and doing the math i get 16, but since people are saying i'm wrong i used my windows calculator in scientific mode, and it broke, like i put 20/5(2*2) but it wouldn't let me put in 20/5 with a ( next to it, it would do 20/ (2*2) and completely omitted the 5... so i assume windows wasn't able to compute the equation

>>134428087
True, but, in this particular case, whether the word "mathematics" is plural or singular has no importance. The message is understood with or without the s.

This is the single most autistic thread i have ever read, thank you all for participating.

>>134427915
Yes of course for those bits.
Look at the different order of multi and division in the two conventions. Mental

>>134428243
Well afaik in most post commie countries children give up on writing division horizontally altogether after 5th grade or so precisely because it's so ambiguous.

>>134428345
Thanks for joining straya i learned from the best

>>134426630

IQ != math/general ed literacy. In either case, your post doesnt prove me wrong, it just shows that there are a few outliers (Montana, Iowa, ND).

>>134427978
Nope, multiplication comes before division.
20/5x4
20/20
1

>>134421911
BUT (2*2) IS NOT IN THE FUCKING DENOMINATOR
IF YOU WANTED (2*2) TO BE INSIDE THE FUCKING DENOMINATOR IT SHOULD BE

[ 5 * (2*2) ] FOR FUCKS SAKE IF THERE ARE NO FUCKING BRACKETS, THE FUCKING PARENTHESIS OPERATION GOES IMMEDIATELY TO THE NUMERATOR WHAT IN THE FUCK

>>134428231
>only showed the other way of doing the 5x3 and nothing more.
then why the hell is there a "-1" next to that exercise?

>>134421729
20/5(2*2)
We know that () take priority
20/5*4
Now we just work left to right.
4*4
We continue to work left to right
>16

There is no other answer.

>>134428594
20*(1/5)*4 = 16

>>134428594
>amerilard education

brackets come before division/multiplication thats why it gives 1.

>>134428594
NO YOU STUPID HOMO, MULTIPLICATION AND DIVISION HAVE NO ORDER YOU STUPID FUCK THERES A REASON WHY PARENTHESIS AND BRACKETS EXIST JESUS CHRIST YOU ARE STUPID ITS AS IF YOU ARE SAYING
"HUUUR ADDING COMES BEFORE SUBSTRACTING" NO YOU FAGGOT BECAUSE THEY ARE THE SAME OPERATION WITH NEGATIVE NUMBERS

>>134427422
I'm pretty sure they are trolling when they do stuff like this.
They must be right? Please tell me that they are just trolling.

>>134428335
True, but, in this particular case, it doesn't make it any less retarded to say. Why are you trying to defend stupid so strongly?

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Jesus Christ our education has gone downhill

>>134428709
because american education is more about conformity then about actual learning.
has been since carter created the department of education

>>134428335
Oh shit I didn't realize that was the discussion you two were having until I just looked back. My point was way too extreme lol.

>>134422077
bruh where the fuck do you get the 2 and 3 from???

>>134428805
this, fucking ameritards make everyones blood boil with their stupidity followed by massive ego, literal subhumans

>>134428826
Because if it doesn't matter, it is not stupid. Language changes over time and location, so there is no "true" language. That's why language is based more on understanding.

>>134428594
No, you fucking inbred. Do you even inverse, bro?

>Literally 3rd grade tier math

http://www.homeschoolmath.net/teaching/md/division-multiplication.php

It's 1 right? I mean you are suppose to multiply the brackets before the dividing?

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>>134421729
>fix the American school system?
Teacher here.

Long story short is that we can't fix it

All we can do is let it burn. It's going down to quick as it is. Parents don't parent their children anymore. They treat them like their best friends, so kids come to school without any sense of discipline. We are completely unable to discipline and remove the kids that inhibit everyone else's education, but regardless they all walk out with a diploma that means nothing.

No grit, no critical thinking skills, and they don't have the emotional maturity to put up with speech that they deem offensive.

Public School teachers and most private school teachers can't do shit about it.

We need to dismantle the public school system, and then we need to force kids to participate in community service and the trades as part of their education on a more local level.

>>134428709
In an array you have a set order things must be done.
Imagine working out 3x4
That's 3 sets of 4 reps
Not 4 sets of 3 reps.
Yes we know it equates to the same thing, but the reason for this is when you get into trig and beyond you have to multiply/divide/add/subtract arrays from one or another. Sometimes you have to use arrays in long equations.
The order you present the array would therefore change the final answer.
So when they say 5x3
They are asking for 5 sets of the number 3.
In 4x6 they are asking for 4 sets with 6 (1s).

>>134428737
>20/5*4
>Now we just work left to right.
>4*4

its not a left right issue moron ITS BECAUSE THAT 4 GOES IN THE NUMERATOR FOR FUCKS SAKES DID ANYONE OF YOU GO TO SCHOOL?

20/5 * 4
4 * 4 = 16

IS THE SAME AS

(20 * 4) /5
80/5 = 16

Privatize it ya fucking snow niggers.

>>134428243
>Are there other rules like this
I don't really remember. Oh and we use "·" for multiplication. Although "*" and "x" are fine too.

>why your country has done it that way?
It goes from Soviet times i believe, so idk. As you may imagine, they liked common and mutually understandable standards. They've adopted metric system too, so no classic fraction measures like 1/2 and 1/4 anymore. Maybe that's why "/" died.

>>134428740
This unironically is the right answer by expanding out the fraction. The answer gives 16 regardless of how you multiply.

>>134429013
xey/xem/xeir/xyr's/xemself

language is already being fucked enough as it is.

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>>134426080

How did it take this long for you fucks to realise this?

I swear half this board rode the short bus to school.

>>134428243
: / and that little circle, line, circle mean division

multiplication is *, x, or ( ) or .

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People are fucking retarded holy shit.

Its PEMDAS

Multiplication and Divisiom have priority from Left to right

Addition and subtraction have priority from left to right

>>134429325
>circle, line, circle mean division
btw i've never seen anyone using it

>>134426080
you can't talk logic into an american son

next they will have their little brains explode if you tell them that ^2 is and square roots are the same, only that a square root is ^-2, again 2 sides same coin

>>134426630
Then explain new york

>>134429287
I wonder what a 1600 dude would say about Thee/Thou being phased out. Language changing is inevitable and not a bad thing. Now, we are talking about language, not Gender Politics. That's another different subject.

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>>134426511
are... are you even American?

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>>134429406
little children use it for some reason and you can see it many calculators
it represents 2 dots as variables and the division line

>>134429447
>its only americans being retarded in this thread

fuck off nigger

>>134424958
https://www.wolframalpha.com/input/?i=20%2F5%282*2%29

Summerfags are making /pol/ even worse.

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>>134421729
>ORDER OF OPERATIONS
ORDER OF OPERATIONS
>ORDER OF OPERATIONS
ORDER OF OPERATIONS
>ORDER OF OPERATIONS
ORDER OF OPERATIONS
>ORDER OF OPERATIONS

I'm so fucking triggered right now.

You can't do anything before you solve the FUCKING parentheses.

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


ITS STILL A PARENTHESES. (2*2) = (4) YOU FUCKING MONGS YOU HAVENT SOLVED IT YET SO DO IT

5(4) = 20

20/20 = 1

>>134429086
>/pol/
>teacher
aaaaa

B O D M A S
O
D
M
A
S

>>134429447
Seriously. This is why we are getting beaten out by 3rd world countries.

>>134429628
>20/5(4)
20/5=4
4*4=16

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America needs to become an ethno-nationalist state for the black man, whiteman need not apply

>>134429628


Nice bait, Bjorn. There's no way you're that retarded.

>>134429764
NO
You fucking idiot

>>134429843
type it into a calculator

>>134429761
We are getting beat out because it costs a solid gold brick to get an education

>>134429843
See >>134429585
This is why you snowniggers are going extinct.

>>134429764
YOIU DIDNT SOLVLE THE PARANETHESES

THE PROBLEM ISNT (20/5)(2*2) ITS (20/5(2*2))


KYS
KYS
KYS
KYS
KYS
KYS

>>134429447
Sqrt is ^1/2. ^-2 would be 1/(x^2)

>>134429843
i seriously hope you get hanged you filthy shariablue jews
i fucking love how low iq you are and whenever the day comes i will personally pull the trigger if offered.

insane fucking degenerate filth

>>134429838
Hes right dumbass

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>>134429980

>>134429628
No.

You.

Fucking.

Moron.

Listen up.

>20/5(2*2)
PARENTHESES
>20/5(4)
MULTIPLICATION & DIVISION
>4(4)
MULTIPLICATION & DIVISION
>16

>YOU SOLVE LEFT TO RIGHT
YOU SOLVE LEFT TO RIGHT
>YOU SOLVE LEFT TO RIGHT
YOU SOLVE LEFT TO RIGHT
>YOU SOLVE LEFT TO RIGHT
YOU SOLVE LEFT TO RIGHT
>YOU SOLVE LEFT TO RIGHT

It's working exactly as intended. The entire model is outdated but the problem is that different types of kids need different types of education. Black schools, for example, need to be much more strict, and white schools need to be restructured to be less authoritarian.

For the most part the schools are doing a good job to perpetuate the social order. We need fast food and retail workers much more than we need "science and math" people, and schools are producing many grads who that is all they are qualified for, because that is in society's best interest.

If you go to a poor/black school you can easily get full ride scholarships, but most of them don't try and are disruptive, so they deserve a lifetime of minimum wage work to support society and make penance for when they were disruptive in school.

>>134429999
Use a calulator troll

why are threads like these so popular

it's still up

>>134429989
>>134429951
>>134429908
See>>134429980

>>134429980
Correction:
(20/(5(2*2)))

>>134422206
>>134421729
i honestly like this kind of Pictures.
The teachers are correct. I honestly think this pictures are some kind of bait for average people to fall for.

>>134430147
I am and the calculator is telling me mt way is right

>>134429447
Square root is ^(1/2).

>>134429980
putting parentheses around the outside of the entire expression is literally as meaningless as adding 0 or multiplying by 1.

>>134430134
20/5(2*2)
20/5(4)
20/20

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ACTUALLY:
OP's picture is correct. The formatting is poorly defined, because we have no standards on that kind of murky early math. It literally can be both answers because it wasn't defined what the writer meant.

>>134430136
Because if people can't even do the most rudimentary mathematical calculations then the future is so beyond fucked.

>>134430289
wrong

see >>134429360

>>134430321
I would really like to watch a recording of that class.

>>134430203
>new German

No wonder low IQ new Germans want it easier.

>>134429980


The operation inside the parenthesis is already solved. At that point you're just multiplying which means you would go left to right addressing multiplication and division in the order they appear. Imagine it says 20/5 x 4 and maybe it will make sense my little meatball.

>>134430203
I suppose it was meant to be a bait for schoolchildren too. And line "both are correct" should be translated as "Example above shows a confusing way to write math problems. Don't do this"

>>134430321
>it wasn't defined what the writer meant.

It's literally defined in the mathematical notation itself. Math is not subjective, you Common C(wh)ore

>>134427203

That isn't the question.

>>134430089
How retarded are you?

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

PARENTHESES STILL THERE YOU CANT DO SHIT BEFORE YOU SOLVE PARENTHESES YOURE ENSLAVED NIGGER AND THE PARENTHESES ARE THE CHAINS YOU CANT RUN IF YOU DONT BREAK THE CHAINS GET THAT THROUGH YOUR THICK NIGGER SKULL


20/5(4) PARENTHESES STILL THERE
5(4) = 20 PARENTHESES SOLVED
20 / 20

>>134421972
my high school math teacher (woman) insisted that .1 is hundreths, .01 is millionths. I was sent to the principals office for disrupting the classroom. Informed HIM what she's teaching, he smiled, then said: You may go now. This was way before common core was devised.

>>134430553
You aren't getting it. This math is poorly written so children can understand it. They aren't using complex denomination that actually shows what it means. It's like writing using nothing but simple english words

20(2x2)/5 = 16 Those who answer 16 assume (2x2) is part of the numerator.

20/5(2x2)=1 Those who answer 1 assume (2x2) is part of the denominator. Many people who argue this answer consider a(b) implicit multiplication. For example:
a(b*c) = ab+ac while explicit multiplication yields a*(b*c)= a*1(b*c)= abc

whoever came up with Please Excuse My Dear Aunt Sally without also incorporating From Left To Right, has done america a great disservice.

>>134430592
You are so committed to this troll when pulling out a calculator will show you that you are objectively wrong
wrong
>wrong
wrong
>wrong
wrong
>wrong

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

The only right way of doing it

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>>134426736
ily<3

>>134430443
i have been lurking for 13 years just to be shit talked by you on my first ever comment.

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The equation is written to fool you

It should be written as 20
-----
5(2x2)
If you multiply the parenthesis out first you get 20/20 which is 1.

If you reduce the fraction you get 4/4 which is still 1

They are treating it as if the equation was (20/5) X (2x2) which is wrong because it's not specifically noted with parenthesis ir any notation that they are being multiplied together.

If they were both in parenthesis then it would be 16 but it's not abd in short the system is retarded

>>134430783
Your second one was a hit.

>>134430592
>>134430739
>t. triggered snowchimps that are arguing with calculators

>>134430592
>>134430728
The Amerilard is baiting by now he know he is wrong.

>>134424849
>Sorry, I don't understand. Can someone explain this to me? How is it possible for both to be correct?
I think that if you change the priority of multiplication and division. Let me see:

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

Nailed it! If you prioritize division over multiplication you get 16.


>>134424922
>i know that's always /pol/'s cop-out, but of course they conveniently skip over states like west virginia and kentucky, which are 95/90% white respectively.
>conservashits fear education, it's one of many reasons why yankees outsource our cheap dumb labor to them and why our states are powered by information economies while theirs aren't.
This! It's like everybody forgot the late 90s and the Failtucky board of Edumcators.

>>134423054
>the enfranchisement test from louisiana
Please elaborate.

>>134430592


I don't think you understand how parenthesis work. Solve what's inside first and then, in this case, it becomes multipled LEFT TO RIGHT.

>>134430592
YOU SOLVE THE *******INSIDE****** OF THE PARENTHESES

the. fucking. inside.

20/5(4) PARENTHESES STILL THERE

no, it's not. 20/5(4) = 20/5*4, not fucking 20/(5*4) JFC KYS

>>134421911
How can you be such a fucking nigger

@everyone:
Because the math isn't using more complex denomination, there is no way to tell which one is the answer. Both are correct, yet incorrect because the writer didn't format it smarter. Literally whatever way is taught is whatever answer it has.

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>>134430836
>t. actual chimp who cant comprehend math and insults what it cant understand

>>134430916
he's a very obvious troll

>>134430836
Imagine that the (4) from (2*2) is a set rather than an integer.

>>134430937
>it's true because some moron told me it was true

THAT'S NOT HOW FACTS WORK. There is no subjectivity, it literally is what it literally is. 2+2 does not ever equal 5, no matter how strongly you want it to.

>>134430783
welcome to 4chan kid

>>134430879
A test given to black people in Louisiana to earn right to vote. Apparently black one was harder, and more blacks were tested or something like that.

t. 90001 hours in google.

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>>134430783
So lurking makes you a real German or what EL OH EL.

>>134426166
So, let's remove the parenthesis:

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

>>134426375
I thought you were trolling. Holy shit, Americans really are bad at math.

>>134431120
That's misuse of well-understood mathematical notation and you know it. Nice bait though

>>134431125
You aren't getting it again.
It's using mathematics without sheer definition. there are 0 standards on this kind of stuff. If he used algebra with high standards, you'd be right, but this is child's math that has changed about 100 times since 1900. Literally however the author of the problem intended it to be solved is the right way. This only happens on these weird multi-state problems

>>134431270
Well, no, it's a hypothetical. I'm not asking you to replace () with {}, I'm asking you to imagine that it's ({4}). If you do that the way you solve ought to change.

>>134430739
LEFT.

TO.

RIGHT.

>>134430529
I guess, but then again we do not know the context of the picture. Maybe she is explaining it to the children properly. Maybe she dos it because she wants to explain it in a way that dos not make the children who already know a bit of math feel bad/stupid for being wrong.
I personally like to think that people are smart rather than stupid when i can give em the benefit of the doubt.

>>134421911
notice how it's 20/5(2*2) and not 20/(5(2*2)) moron.

This basically makes it (20/5)(4) thus 4*4 = 16.

Go ahead.

>>134422077
The way the question is posed is stupid. It seems to pun on the meaning of what the anglos call "progressive" I think. "While you are adding, make a stop". It's retarded.

>>134430089
Finally, everyone hating on burgerland, but they cant calculate themselves

I had 8hours math a week
THE ANSWER IS 16

>YOU SOLVE LEFT TO RIGHT
YOU SOLVE LEFT TO RIGHT
>YOU SOLVE LEFT TO RIGHT
YOU SOLVE LEFT TO RIGHT
>YOU SOLVE LEFT TO RIGHT
YOU SOLVE LEFT TO RIGHT
>YOU SOLVE LEFT TO RIGHT

>>134430901
No you inbred retarded amerifat burger half nigger

WHAT DO YOU THINK A DENOMINATOR IS IF NOT FUCKING A ((((((((((((((((PARENTHESES)))))))))))))))) YOU HALFWIT? Go fuck a goat, you're probably a mudslime on proxy considering how fucking stupid you are.

>>134431157
yes.

>>134430937
>Teachers are too stupid to teach properly, so everything is true
I'm starting to think that's the intention of common core; an unnecessarily complex set of CYOA paperwork for administrators and educators. "It's not OUR fault they're dumb, we followed the instructions perfectly!"

>>134430592

DUMBASS, its 16, suck some more islam cock, shithead

>YOU SOLVE LEFT TO RIGHT
YOU SOLVE LEFT TO RIGHT
>YOU SOLVE LEFT TO RIGHT
YOU SOLVE LEFT TO RIGHT
>YOU SOLVE LEFT TO RIGHT
YOU SOLVE LEFT TO RIGHT
>YOU SOLVE LEFT TO RIGHT

>>134431555
Denominators are not limited to parentheses. The problem is written in a way that both solutions are correct. It's not a weird idea. There are quadratics that do the same thing but no one bats an eye

>>134423578
The answer is 16, it was always 16.

It's this simple:
20 / 5 (2*2) = 16
20 / (5 (2*2)) = 1
Since / and * have equal precedence and you go from left to right, the first one ends up being 20 / 5 * 4. Second one ends up being 20 / 20.

>>134425290
Multiplication and division are the same thing you mong.
7/10 <-> 7 * (1/10)

>>134421972
IT HAS NOTHING TO DO WITH COMMON CORE
THEY ARE ALREADY MEMEING IT INTO SOMETHING IT ISN'T
FUCK OFF SWALLOWING THEIR SHIT YOU NIGGER EATING THE ASS OF SOME SHIT SLURRY ANIMAL

>>134431555
The 4 isn't in the denominator, you bög

>>134431668
>3-6*6

HURR SOLVE LEFT TO RIGHT xdddddddd

fuck off idiot brackets first, Belgium is not even a real country get out.

>>134431632
It's more like they made the problem specifically because it shows the failings of our standards: we have none. Either solutions can be true because it is written in an inferior notation of basic math. Imagine doing calculus without using fractional notation

>>134430089
>>134430592
>>134430901

As much as I want Ahmed to be correct, he is, objectively, wrong.

When you've come to the step as follows:

20/5(4)

It's simply rewritten as

20/5*4

And from there the international standard among all mathematicians, scientists, engineers (people who actually matter) is to solve from left to right.

>>134425744
gigo

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>>134422077
>5 - 2
>8 + 2
>10 + 3 = 10

So... This is the power of the common core

>>134431555


You can go play outside now. Why don't you leave the math to the adults, hmm?

>>134421729
Old way??
There was never old way. Only correct way.
And it is 16. Morons

>>134431863
And this is why you couldn't get that degree in STEM

Order of operations are just a convention. They don't reflect some physical law.

>>134431881
I know. 5 isn't in the parenthesis, so (4) is already solved and can be regarded as simply 4.

>>134431998
The problem is written specifically to be confusing. It's doing more complex mathematics in a simpler notation. It wouldn't be so poorly defined if they had used a more advanced notation

>>134431841
maybe you should look at whom I answered, fucking globalist

If you only have multiplication and division you solve left to right, same with + and -

than solve left to right

Belgium atleast has a decent education shithead

>>134430836
>cucked by a calculator

lmao

>>134431760
>>134431813
>>134431721
>>134431881


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

OTHERWISE YOU PUT IT LIKE SO

(20/5)(2*2)

>>134429122
Never made it till Abelian groups in algebra, didn't you?

Are people seriously this retarded? It's 16.

20/5(2*2) Solve the brackets first which gives you 4

20/5(4) Now we have to do either division or multiplication (I was taught division first, so that's what I'm using).

4(4) This is literally 4 x 4, if you can't figure this shit out, God help you.

And that's how we end up with a final answer of 16. JFC, I got 50's in math and know this shit.

>>134432095
Right, but the entire field of math is based on shared, CONCRETE conventions. Don't bring your "it's just a construct, man" bullshit in to this.

>>134432054
I did get that degree in stem, but that not what we are talking about. We discussed this once, how putting a complex object in a simpler language can make it more subjective. Imagine looking at a 4d object in 3d space, or using a word that doesn't exist in english, but in German. If the math is not meant for the notation, it can create these multi-state situations

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>>134432188
Yeah so great! here is a picture of your """"health minister""""
honestly how big of a joke is your """country""" really?

>>134431555
You're not making your country look good buddy

>>134422206
I kind of get how #2 could be wrong since arrays are rows x columns, but how the hell is #1 wrong? That shouldn't have lost any points.