Why are some schools still teaching the old math?I heard from my nephew that they're still learning it the bad way in his class
>>544186158this image has to be fake, otherwise Americans are a meme
'Common Core' was step 1 in the subversion of American educationThey start with something controversial, but something that will be accepted - then they start adding more controversial things to the curriculum - and then one day teachers are teaching kids about gay sex and transgenderism
>>544186158numbers are swapped
>>544186210?20 over 5x420 over 201Division symbols are fractions bro
>>544186158Uh how the fuck can be 1?
>>544186158In no universe is it 16. Its fine if you think it is but you wont be doing anything that Involves math for me
>>54418639920 / 5(2*2) 20 / 5*420 / 20 = 1
>>544186399>>544186414please be larp
>>544186399Retards think its pemdas like they're reading a kids book where in reality you evaluate the parentheses completely then do the rest
wait im retarded
>>544186479you must also solve what's outside the parentheses as well
>>544186158What?>20/5(2*2)>20/5(4)>20/20 = 1I have no idea what the fuck "common core" is, but the way the problem is written only allows for one solution.
>>544186463What's the point of the parenthesis if you're going to ignore it?this>>544186479
>>544186674Yep which is why you divide
>>544186711see >>544186674
>>54418615816?
>>544186741no, you must multiply 5 * 4 first
>>544186682>reading right to left
>>544186776Yep then divide.
>>544186786it's not reading right to lefthttps://www.themathdoctors.org/order-of-operations-implicit-multiplication/
>>544186786It would be exactly the same if you swapped it around.
>>544186158This is not a meme, my middle school and grade school taught it this way. It wasn't as common back then thought
it's 1you always complete the parenthesis first then multipication, dviisuon additions sustractions
>>544186210brackets first, then left to right.20/5=4*4=16
>>544186337>>544186463>>54418668220/5(2*2)=20/5(4)=4(4)=16=you are a black nigger
>>544186958see >>544186809
>>544186963how would you solve 5 (4) then retard
>>544186973>>544186963>>544186958You are retardedWe stopped doing it this way for a reason
>>544186989YOU READ LEFT TO RIGHT YOU FUCKING MORON. we write in ENGLISH, not ARABIC. 20/5*4=fucking 16calling me a retard when you cant even do grade school math. black monkey.
>>544187039ya because niggers can't into implicit multiplication, the non common core answer is one
>>544187053>didn't solve 5 (4)thanks for proving to us that you're a retard
20/5*4=165*4/20=1>>544187108order matters, nigger.
>>544186963WRONG ANONWHAT IS THE ORDER OF OPERATIONS
>>544186337Then, they should have written it as a fucking fractionCommon core is trying to fix something that isn't broken. So we can all be dumb as niggers
>>544187162multiplication and division are done. IN THE ORDER IN WHICH THEY ARE WRITTEN. FUCK YOU.
>>544186800Multiplication and division are the same operations. So you just do them in orderIgnorant retard
>>544187155>retard removes the parenthesis when he wasn't suppose to yet>gets the answer wrong
>>544187199wrong, see >>544186809
>>544187039>>544186973the original problem in the image is being presented to kids in grade school.this site you linked is algebra>https://www.themathdoctors.org/order-of-operations-implicit-multiplication/multiplication, division, addition, subtractionleft to right
>>544187108Multiplication and division are the same operation in mathematics and that's why you do them in the order they appear. Same for addition and subtraction, you do those in the order they appear too. After you've done the parentheticals and multiplications
>>544187199WROOOOOOOOOOOOOOOOOOOOONG
>>544187219parentheses are solved first what the fuck are you talking about. then exponents. then multiplication and division in the order which they are written, then addition and subtraction also in order.
>>544187203You do them at the same time. After you evaluate the parenthesis
>>544187287I'm saying once you're on to doing multiplication and division, you do them in the order they appear in the equation not multiplication first, like these morons, are sayingIt's incredible how confidently wrong these fucking idiots are
>>544186809>math for niggers
>>544187257read nigger read
>>544187231You're the biggest retard here, did you even read this article you're shilling so hard? The guy literally says its ambiguous, but the standard answer would be 16. The proper solution is to stop writing retarded ambiguous expressions and use proper formatting so everyone agrees on the meaning.
>>544187259If you don't understand that multiplication and division are the same operation, then fucking shoot your amygdala out of your head and onto your wall
>>544187332Its not 5,4 its 5(4) which is just another way to write 20. That's why you fully evaluate the parenthesis
>>544187259>>544187257>>544187239does anyone realize there are oceans of kids in college who do not have basic math skills.STEM is flooded with illiterate administrators. so imagine the students they are pitching these classes to???Vocational Schools will be understaffed cause basic math is needed for any skilled job.this site is posting a 2nd grade math problem and the teacher in that image is actually stating there are 2 answers.this aint a radiohead albumand common core was installed to show how disinterested people are in the future of this country
>>544187285retard
>>544187338Not how math works. Why does multiplication take precedent of division, but addition doesn't go before subtraction? They are equivalent yet inverse operations. You should stop being a nigger and learn how to write equations.
this image is from 2012 homeboy
>>544187399>if i can't understand it must be wrongyou should stop being a nigger and learn math
>>544187399>multiplication, division, addition, subtraction>left to rightthis is how it was taught foreverwe pick one way and follow the rule
>>544187399They're inverse operations (the same) so you do them at the same time
>>544187338lmao so essentially there are invisible, unwritten, implied parenthesis for multiplication by juxtaposition. if i wanted to do that i wouldve explicitly used parenthesis. >>544187399this.
>>544187430I was taught white man's math. You can keep your jewlatto math.
>>544187381That cute little picture you shared, doesn't refute what he said at all you moron
>>544187451>invisible, unwritten, implied parenthesisexcept they're not, it would be5*(4)instead
>>544187462kys.
>>544187481you were taught common core nigger math, the correct answer is still one
>>544186158Nothing could possiblay go wrong with this
>>544187502now do it backwards
>>544186399If you read it from right to left (like a certain group does) you will multiply the inside of the parenthes with the 5 and get 20/20, which is equal to 1.
>>544187462That shits wrong its 16
>>544186158these 'questions' shouldn't get mentioned in schoolambiguous syntax will never pop up in school or exams, it has no meaningful underlying lesson, and it will only confuse students
>>544187502A. Charge your phoneB. That's AI or your app is from some shithole country where they haven't updated their math yet
>>544187556no it got it correct
>>544187521Kek. You stupid monkey. Look at OP again.
>>544186158The answer lies in my ID
>>544187521see>>544187502tongue my anus because youre a nigger. >>544187539see>>544187155i did. my whole point is that order matters. dont break your brain, blackie.
>>544187578you do know that the image was edited right?
>>544186158This image is fake. Mental math is real. The old way of teaching math worked because all the students were white. Vote GOP, receive $5000.
>>544187332see >>544187108
>>544187581if you do it backwards and you get a different answer there's something wrong with the way you solved the equation, the answer should both be the same
>>544187599It's real, we learned this way
>>544187570grapheneos stock calculator on google pixel latest version. >>544187462he didn't even type the equation correctly. it's supposed to be multiplication by juxtaposition, i.e. no * multiplication symbol.
it just added the parentheses
>>544187599You are a zoomer mutt that doesn't even remember when common core was introduced. Your type would have spent your school years in the retard trailer if it weren't for "No Child Left Behind".
Common core is invalid. It is taking a vague expression that needs to be fixed and pretending it’s some sort of “it can be either” bullshit. Most programs and their logic would find 16. Common core can argue it’s also 1 because of the lazy way the expression is written. But that’s not teaching math that’s teaching how to Troll.
>>544187636so you learned like a nigger then, my condolences
>>544187671>says the one who got the answer wrong
>>544187648Samsung automatically puts the * when a number is beside the parentheses
>>544186337this a division symbol is the same as a fraction.
>>544187744HAAAAHAHAHAHAHAHAHAHAHA
>>544187744wolfram has been jeet shit for a while now
>>544187784>calculator software produces a result that proves me wrong therefore it's a fake/ai image or bad software please just die
>>544187830now click on math input :^)
>>544187668the calculator adds the parentheses on its own. it doesn’t calculate the way it’s written below is what i typed and on top what it calculated
i always love it when americans think/is/()
>>544186158That "The Old Way" answer is bullshit, because PEMDAS was the old way as wellAnd PEMDAS yields the answer "1"And so there is only one right answer there and, once again, it's "1"
>>544187830>>544187744Uh oh... stinky
>>544187873It's still not written 20/(5(2*2)
order of operations is just a convention, not a universal truth.
>>544187933Lying retard it gave 16
>>544188038no because it's written 20/5(2+2)
>>544187521Pretty sure the common core way is what leads to a value of 1. I can't remember exactly why, but there are transitive and identities of math that force it to always work a certain way.Because you're never just "working with numbers." You're only saying a bit of an actual real-world phrase that's omitted and acts as the rest of the iceberg hidden under the water.All I can remember from algebra was that once a parentheses has been solved, it simply becomes a multiplier shell, nothing more or less.So it would make sense if reading from left to right, that you would end up with 16, which is what fundamental old-school math teaching would say right?Which by the way, even by the time we were doing calc 1 & 2 in college, we all had forgotten how to do algebra.So calling people retards for not remembering something in algebra that literally top level math geniuses might forget every once in a while isn't going to actually get us to the bottom of this.If there's an issue with some physics professors and scholars creating specific rules of juxtaposition, then that's on them. I'd be more than happy to actually figure out the real and meaningful reason as to why the answer comes out as either 16 or 1.Because let's be real, if you can't explain why it should be one way or another, in order to actually get the fundamental reality right for use in a real-world scenario, then your answer is useless and retarded.So are you trying to say like: Sally has 20 apples, clusters them into 5 segments of 4, and then multiplies those 5 clusters of 4 apples by 4 each, meaning you have 5 clusters of 16 apples.Or are you saying:Sally decides to cluster the original 5 grouping based on another 4 apples in 2 baskets to create 20 clusters of 1 apple?That's really more or less what's at the heart of this. Which of the above statements is easier to reconcile or makes more sense.
>>544188061>no proof
>>544188101>t. mathlet
>>544186463>>544186474literal jeets
>>544187873Yeah, wolfram converts it into a proper equation, picrel, which actually equals 1. However, the problem in the OP is vastly different in its formating implications. Perhaps you missed my earlier post here,>>544187360
>>544188121jeets are taught bodmas not pemdas
how do americans multiply 1/4 such that the result is 1? i dont understand
>>544186463You solve what's in the bracketsYou solve whats out of the brackets (basically it's bracketed by without being explicitly shown)4*4You don't magically do 5 * stuff in the brackets because the 5 is part of something else the division operation. Baka
>>544188139>ambiguousjust because the guy said that it is ambiguous doesn't mean that it shouldn't be used, it's ok to admit that you were wrong anon
>>544188156we do it by solving 5 (4) first
>>544188139/is not/()try to write this shit as computer code and your code would never work a single time because you dont understand that symbols are precisely defined. all of math would fall apart instantly if any symbol would be ambiguous. every single computer on the entire world would shut down instantly if that was the case
>>544187360>The proper solution is to stop writing retarded ambiguous expressions and use proper formatting so everyone agrees on the meaning.this. the problem is three inputs for two binary operations.
>>544188156They are ruled by jews. They read from right to left.
>>544186158PEDO ALLOWING + GUN OWNING = PUSSY BEINGis this correct american anons?
>>544186158>equally correctthey really are not, you either understand math and agree on the standard used for a very long time or you want society to collapse
>>544188176no its not retard, go back to school
i guess the argument for 1 is that the multiplication by juxtaposition implies 20/(5(2*2)) because it essentially reads "five of (2*2)". If (2*2) were instead a variable such as 5x, it reads "five of x". you wouldnt say that 20/5x = 4xmultiplication by juxtaposition 20/5(2*2) = 20/(5(2*2))explicit multiplication 20/5*(2*2) = 20/5*2*2so yeah i change my mind sorry for calling u guys niggers n stuff
>>544188229see >>544188302 and >>544187338 also >>544186809
>>544186158New Math is retarded.
>>544188139This is how it should be written. Youre just computing the denominator not reading left to right. There is no left to right this isnt one of your kids books lmao
>>544186158>Why are airplanes suddenly dropping from the sky???
OK so doing some research, the only reason this is ambiguous is because the faggots saying "1" are misinterpreting how juxtaposition priority works. In juxt you not only group and give preference to multiplication but you also eliminate forward slashes entirely, strictly limiting yourself to horizontals for numerator/denominator - which adds further clarity and avoids running into the mistake.In reality, no advanced math text involving anything like linear algebra or higher will ever mean 20/5x to be (20/5)x so that's completely different than actually seeing (x+x) so in juxt you'd write it as:(2*2) * 20/5 to avoid confusion. Basically this problem is already solved in juxtapositional academic writing because they already know that BECAUSE they give implicit bias to multiplication over division due to exponent grouping for scientific notation, they go out of their way to ADD extra parentheses and formatting changes to ensure continuity of mathematical logic AND grammar is maintained./thread niggers
>>544188417correct answer is one
>>544188433retard you can't add shit onto an equation otherwise you'll get a different answer
>>544188467the common core shit is 16
>>544186414>PEMDAS>equal priority operations are handled left to rightnow what you fucking imbecile?
>>544188417i thought 16 was correct also but i was wrong. 20/5x ≠ 4xmultipliers always stay with their variables>>544188433this.
>>544188496There is no left to right. There is just a numerator and denominator.
>>544188310Cuck.
>>544188548If you want to solve it like a fraction, then use a damn vinculum. The original problem uses a solidus, meaning you follow PE-MD-AS.
>>544188417If you insult my math skills ever again I will hunt you down
>>544188618>muh pemdas Lol theres a numerator which is 20 and you're evaluating the denominator which is also 20. Not reading a fucking Manga
I haven't seen / used for division in over a decade>t. mathematician
>>544188654It isn't a fraction.
>>544188672Oh it certainly is
>>544188684It definitely isn't, or the equation would have used a vinculum.
2 plus 2 is 4 minus 1 thats 3 quick math
>>54418746220/4x5=1
>>544188702It definitely is because dividing and multiplying both create fractions that you can express different ways. It doesn't matter how you write it lol
>>544188139>into a proper equation, picrel,Please explain why not like that instead.
>>544188810>It doesn't matter how you write it.Brown hands typed that post.
>>544187053Only correct answer. Left to right is part of math. There isn’t another correct way to do it.
>>544188888>u brownKek. Ok bro but you're still wrong. 16 is a fraction too. 16/1 and you still dont have any friends
20/5(2*2) <> 20/(5(2*2))/ & * have the same precedence() has higher precedence than / & *
>>544188869Because you can reduce your fraction. Don't be a fag
>>544188869The point I'm trying to make here is the OP equation isn't properly formatted to give a single concrete answer. You could write it as (20/5)(2*2) if you wanted it to be 16, you could write it as 20/(5(2*2)) if you wanted it to be 1. But as it exists, all it does is rot peoples brains and cause retarded arguments to explode on Indonesian basket weaving forums. Anyone taking a side here is actually retarded
>>544189143There's no need for the second set since you evaluate both sides with / or * you dont split them up to prove a point on 4chan
>>544187053based
>>544186158I wonder though, how will common core work in more advanced math and engineering when those are founded under the ""old"" way. will it affect it in anyway?
>>544189486Yes, that is correct, or just write a proper fucking equation, its not hard. this shit doesn't even exist outside of gradeschool
>>544186158this has to be the most consistently retarded discussion on this fucking site
>>544189752it's definitely up there along with the discussion surrounding this one
>>544189752slightly below circumcision threads but I think slightly above mandela effect threads
20 / 5 (2 * 2) = 20 / 5 (4) = 4 (4) = 4 * 4 = 16
>>544187039You stopped doing math because your coubtry is like 40% white at best.
>>5441872195(4) is 5*4 when you open the parentheses you fucking mentally retarded gorilla nigger.
>>544189323Absolutely true.And in real life that's what every professional does.It's only a "problem" that exists in discussion forums.
>>544186158Shitlibtard teachers is why IQ is dropping.
>>544187570The US and maybe Canada are the only countries in the world that do nigger "math"
>>544186463This is why you lost the emu war.
>>544187360This anon is correct
>>544186158To be honest the rules of equations were always somewhat confusing to me. If the question was written in a language or given as a real world example as opposed to hoping people understand what brackets mean, it would be better.So imagine:There are 20 boxes of chocolates.There are 5 children.Divide the boxes of chocolates equally between the children.So each child gets 4 boxes of chocolates.Inside each box are 2 compartments. In each compartment are 2 chocolates.How many chocolates will each child consume?20/5(2x2)20/5=4(2x2)=(4)4(4)4x4=16Broken down like that, I understand it. Just seeing the original equation gets me to the 4(4) stage and then, without further instruction, I don't know what I'm supposed to do with both 4s. Multiply them? Divide them? Do one to the power of the other? I don't bloody know.Maybe I'm just 'tard, maybe I was never taught properly; but I'd really prefer that we be given questions as actual written real world examples as its so much more clear and I can figure out what I'm actually being asked. The answer in the OP, that both are the same, is just going to confuse the hell out of people and have them conclude that reality is chaotic and everything is subjective and liable to change; when in reality there are unchanging rules to mathematics, the issue is entirely down to the question not being adequately explained.
>>544186337the fraction is 20 over 5for your way to work it would have to be 20/(5(2*2))
>>544191366The parentheses are implied
20 / 5 (2 * 2)20 / 5 * 44 * 416any other way is retarded and unfit for a numbers job with any responsibility
>>544190228After destroying the few braincells I have left being edjumacated about how I should number the balls and do some Bertrand's calculations an' shit I conclude that reddit is even more tarded than I had previously considered and AI too, being subjected to garbage in garbage out.So, since you already pulled a gold one, then you could only be pulling from one of the boxes that has gold, therefore the chances of pulling another gold are exactly fucking 50/50.Because you already pulled 1 gold so you're not in the box that has none aren't you, so that box can be excluded, innit ya cunt?Regardless of what names or numbers you allocate to the balls.When are the insect overlords showing up? Pretty please!!!PS: and the division is a fucking fraction.
20---------5(2*2)this confuses the thirdworlder
>>544193649this
>>544187231Bomdas.>B O DM AS>(B)rackets (Solve all calculations within brackets first)>(O)rders>(D)ivision and (M)ultiplication (performed in the order they are written.)>(A)ddition and (S)ubtraction (performed in the order they are written.)This is grade school level mathematics, what the fuck is going on?
yep, we're doomedit's 1fuck you
in non-mongoloid countries a fraction is written as a fraction and a division sign is written as a separate thing for a reasonthis confuses the mutt-mongoloid
>>544193649>5(2*2)but that is not how it is written in the image in the OP. there is a space between the 5 and the parenthesis. This is important.Anyway this is a badly written problem which is the equivalent to;>I watched the man with the telescope.>Visiting relatives can be boring.>The chicken is ready to eat.>She likes her more than me.Each of these sentences are ambiguous and can be taken one way or another by each reader.
>>544193809That space does not matter
>>544186479What is wrong with PEMDAS? Why do midwit mathematicians have to change the rules that worked perfectly fine? This is why they’re getting replaced with LLMs
>>544193878Your pathetic sad excuse for a life doesn't matter yet here we are.
>>544193938If you argued with your teacher about how your stupid answer wasn't wrong because of a space he would look at you like a retard, guarantee you're a brownoid
Everyone is fighting a retarded game when any logical thinker would go >this is retarded notation You can't tell if its 5/4 as a fraction multiplied by the parenthesis or if its 5 over 4 x parenthesis. Because lazy bitches dont know how to type it out on the keyboard to make it clear
20 / 5 + 2 * 220 / 7 * 2~= e + 0.14 * 2~= e + 0.28~= 3
>>544194015Ignore me typing the numbers wrong but you should be able to follow the logic >>544193938Theres also a space after every number. Going to explain that?
>>544186158>1Are these people retarded?
>>544194162Yes, public education is a strange cult in the US.
>>544186463>>544186682You do division before multiplication (except in brackets)
>>544194237Too few people consider the format and languages used in assessing learning
>>544194291Are you retarded or just Indian
>>544186158Common core is dogshit
>>544193809If you think this is ambiguous, learn mandarin kek
>>544193649poor mutt-mathletwould have been written as 20/(5(2*2)) to be equivalent to your interpretation
No wonder si made mathematicians obsolete
>>544193716Division is a fucking fraction.https://www.youtube.com/watch?v=zuuObGsB0No
>>54419364920/5--------2*2What now retard?
>>544194467What if I told you it just hallucinated a solution and no one cares enough to bother fact checking it?
So 16 = 1, interesting
>>544186158>20/5 = 420 divided between 5 people I think>2*2 = 4Why are we using the a * symbol and not a X symbol? Retarded shit for preppy girls who use highlighters to correct boys over> 4 (4) = 16Brackets become multiplication to resolve the equation. That's all I remember from school, fuck knows where they got the 1. Too bad AI is the second industrial revolution and the school system will now be 10X irrelevant.
>>544186958Bait
>>544194617Which is fucking a 16 year old is the same crime as an infant
