Pemdas ignorance

[Anonymous No.9983492]

Look at all the uneducated adults who think the answer is 6

https://twitter.com/vinziIIa/status/1037875309935292417

It's a sad, sad day for mathematics

[Anonymous No.9983494]

>>9983492
at first i didn't care

then i saw people justifying it with "PEMDAS"

ok yeah is uneducated

[Anonymous No.9983499]

this is why we need to stop teaching our kids ÷ and focus on fractions or at least fraction notation from the get go

[Anonymous No.9983501]

This is literally a notation standardization issue and has nothing to do with the underlying mathematics.

[Anonymous No.9983502]

>>9983494
i take this back slightly
it has nothing to do with education, people need to learn how to think

[Anonymous No.9983504]

>>9983492
bait.jpeg

[Anonymous No.9983506]

>>9983492
math tard here, wouldnt it be 24 since you need to clear up the division to distribute that into the 7 and -5?

[Anonymous No.9983508]

>>9983492
BIDMAS

BRACKETS INDICES DIVISION MULTIPLICATION ADDITION SUBTRACTION

THEREFORE 60÷5(7-5)=60÷5(2)=60÷10=6

[Anonymous No.9983509]

>>9983501
it does when people think a mnemonic like PEMDAS means multiplication is before division

or they try to use a vertical fraction to justify it, when that logic just fails with a sum in the denominator

[Anonymous No.9983511]

>>9983508

[Anonymous No.9983514]

>>9983506
>math tard
>you're not subtracting 5 from 7 first
:/

[Anonymous No.9983516]

>>9983508
i can't even follow this desu

[Anonymous No.9983534]

Dude ffs...

M and D are treated with the same weight. Which when it happens you work left to right.

[Anonymous No.9983538]

>>9983499
This, or we could rename PEMDAS to PEMDASOLtR (Parentheses Exponents Multiplication Division Addition Subtraction Ordered Left-to-Right).

Acronyms are for people who don't know what they're doing, after all. Might as well make them as descriptive as possible.

[Anonymous No.9983546]

>>9983492
>haha I am so much better than other people because I can solve something with no practical application to everyday life

kill yourself.

[Anonymous No.9983554]

>>9983546
Wowee that's some serious butthurt over something that's supposedly unimportant ^_^

[Anonymous No.9983560]

>>9983546
Someone's gonna come in here and make fun of this guy for insinuating you don't need to know basic math operations for everyday life, but unironically THIS. Unless you need to cram a bunch of shit into a single line on narrow-margin paper, you should be using fractions. There's a reason they save space on keyboards by not including a division symbol key.

[Anonymous No.9983561]

>>9983546
Someone's gonna come in here and make fun of this guy for insinuating you don't need to know basic math operations for everyday life, but unironically THIS. Unless you need to cram a bunch of shit into a single line on narrow-ruled paper, you should be using fractions. There's a reason they save space on keyboards by not including a division symbol key.

[Anonymous No.9984354]

It's clearly 24
you calculate the question in between the brackets first the answer is 2
60/5*2=24

[Anonymous No.9984376]

Holy fuck. So many people actually think 5(2) goes first because it has parenthesis. Brb. Gonna kill myself.

[Anonymous No.9984610]

>>9983492
literally ambiguous
now gtfo

[Anonymous No.9984615]

>>9983508
60÷5(7-5)
=60/5*2
=12*2
=24

[Anonymous No.9984616]

>>9984610
retard

[Anonymous No.9984640]

>>9983492
Even with PEMDAS you still get 24 if you're not retarded. What PEMDAS means is calculate whatever operation is WITHIN the brackets first.

But these dumb fucks also perform perform the multiplication step outside the brackets, and thus get to 6.

[Anonymous No.9984670]

I don't understand why we still use the division symbol that isn't a fraction bar. Also, it's better to teach the order of operations without the acronym.

The following is from the Art of Problem Solving book on introductory algebra:

"The rules for evaluating a mathematical expression with multiple operations are called the order of operations. Here they are:

1. If there are parentheses in the expression, evaluate all expressions within parentheses, working from the inside out. Compute each expression inside parentheses using the order of operations.

2. Perform all exponentiations.

3. Perform all multiplications and divisions from left to right.

4. Perform all additions and subtractions from left to right."

There is no mention of PEMDAS in the book as that is seen to be ambiguous and kids keep doing it wrong assuming the acronym implies an order that you have to do multiplication first over division because "it comes first in the acronym".

[Anonymous No.9984787]

>>9984615
>doing the division first
Retard

[Anonymous No.9984793]

>>9984787
imagine being this stupid

[Anonymous No.9984798]

Not distributing sixty fifths into seven take five.
Fucking brainlets everywhere.

[Anonymous No.9984815]

>>9984376
Soooo... you won't be right back?

[Anonymous No.9984825]

>>9984670
The acronym is simply to help people remember the order, not to simply say the acronym and let run with whatever they interpret. If you don't have it you'll have more people not knowing multiplication before addition because "they mixed up the last steps, whatever, there's too many to remember" just like FOIL is a restrictive acronym used to help teach distribution until you actually understand what's going on.

[Anonymous No.9984828]

Is this acronym-based way of teaching algebra an american thing, or do other english speaking countries also do that?

[Anonymous No.9984833]

>>9983492
>pemdas
Not science or math

[Anonymous No.9986699]

>>9983492
Don't understand the complication here

The division symbol is considered a fraction bar following left to right syntax to anything following said symbol, ad infiniteum...

If you don't understand something as simple as 60 over 5(7-5) then you should try your luck in one of those business degrees with all those sex having fraternity bros.

[Anonymous No.9986711]

>>9986699
>is considered
maybe in your kindergarten
in a flat line it's vague, so fuck it, it's just the same as a slash
if you want anything else, use parentheses or latex

[Anonymous No.9986807]

>>9986711
>in a flat line it's vague
no it isn't you dipshit. It's "left to right" format. The division operation applies to the immediately-following expression and should be considered a fraction. It's a universal standard. Everything from my calculator to Symbolab.com understands the syntax and will give the same answer given the same expression. Older calculators with outdated architecture need different syntax, but they are outdated and explicitly acknowledge they don't' use PEMDAS and are thus irrelevant.

[Anonymous No.9986820]

>>9986699
2 ÷ 1 + 1 = 1

[Anonymous No.9986840]

>>9983499
Ditch the notion of division entirely. Teach kids only multiplication and multiplicative inverse operation, denoted by superscript -1.

[Anonymous No.9986848]

>>9986840
like a multiplication symbol with the superscript -1?

[Anonymous No.9986851]

>>9986807
the kindergarten called
shoo little one, adults talking here

[Anonymous No.9986931]

60/5(7-5)=
60/35-25=
12/7-25=
12-175/7=
-163/7

-163/7=23*2/7

[Anonymous No.9986951]

>>9986931
kek

[Anonymous No.9986961]

>>9983561
I wholeheartedly agree, if a question is worded so badly that order of operations even matters aside from brackets before multiplication before addition, then you're likely terrible at organising your solutions and equations.

>>9983492
This isn't sad and order of operations is a form of communication, I would barely consider it mathematics. Your sample of the population getting the wrong answer doesn't tell us that people are bad at mathematics, it tells us your question is badly communicated.

[Anonymous No.9986977]

Unless noted, an operation only takes the terms directly to the left and the right of it that aren't directly connected to an higher priority operation
In this case, the priority resolution is
60/5*(7-5) => 60/5*2 => 12*2 => 24
for it to be 6, it'd need to be explicitly rewritten as 60/(5*(7-2))

[Anonymous No.9986980]

>>9983492
doing brackets first is very intuitive and easy
brackets are very easy to write down, you can even add them to an already written equation
therefore there is no reason at all to not always use brackets to remove any ambiguity and make the equation clearer
(60/5)(7-5)
60/(5(7-5))

[Anonymous No.9987228]

>>9986931