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I’m not seeing a single mention of My Dear Aunt Sally. The youth are lost…
Was anyone else ever taught it as BOMDAS as opposed to BODMAS?
PEMDAS, is that the same as BOMDAS?
I think so. Amazing how many different ways there are to say it
So instead of Parentheses, Exponents is it Box and O that digit in the sky?
It was BEDMAS for us, where the E was exponents or something.
Yeah, I was taught BOMDAS here in Australia.
I was taught BODMAS in Australia
Its BODMAS for maths and BOMDAS for twerking.
Easy mistake to make given the amount of maths involved in dancing.
I feel like I am getting trolled
Isn’t 17 the actual right answer?
Exactly
So it’s just an unfunny meme?
I think it’s meant to play with your expectations. Normally someone’s take being posted is to show them being confidently stupid, otherwise it isn’t as interesting and doesn’t go viral.However, because we’re primed to view it from that lens, we feel crazy to think we’re doing the math correctly and getting the “wrong answer” from what we assume is the “confident dipshit”.
There’s layers beyond the superficial.
I fell for it. It’s crazy to think how heavily I’ve been trained to believe everything I see is wrong in the most embarrassing and laughable way possible. That’s pretty depressing if you think about it.
As most memes are.
Not even a meme.
There is no answer. Because there is no question.
That is a problem, tho
Inside the parens first, so it becomes 2 + 5*3
Then tou do multiplication before addition, so 2 + 15
Then addition, so 17
Yeah I know that. But I was feeling confused as to why it was here. That’s why I was feeling trolled, because it made me doubt basic math for being posted in a memes community.
Alternatively, the poster calculated the wrong answer, thus assuming this guy was wrong.
They did the joke wrong. To do it right you need to use the ÷ symbol. Because people never use that after they learn fraction, people treat things like a + b ÷ c + d as
a + b ----- c + dOr (a + b) ÷ (c + d) when they should be treating it as a + (b ÷ c) + d.
That’s the most common one of these “troll.math” tricks. Because notating as
a + b + d - cIs much more common and useful. Do people get used to grouping everything around the division operator as if they’re in parentheses.
Removed by mod
This shit take got deleted right in front of my eyes
The system works
Oh so just like me on !lemmyshitpost@lemmy.world
Presuming PEMDAS is our order of operations and the 5 next to the parentheses indicates multiplication…
2+5(8-5) -> 2+5(3) -> 2+15=17
Other than adding a multiplication indicator next to the left parentheses for clarification (I believe it’s * for programming and text chat purposes, a miniature “x” or dot for pen and paper/traditional calculators), this seems fine, yeah.
…I worry about how many people may not understand how to solve equations like these.
That’s not even an equation, just basic algebra
Algebra has horrible syntax. Way too much implications.
Fair enough, I’ve heard “math problem” and “math equation” used interchangeably.
Also you would be surprised how many people do not know basic algebra, at least in the US rofl
You. You are one of them bc you do not know what an equation is.
There is no algebra here. This is arithmetic.
While I never failed a math class, I also never went past high school. When would your presumptions NOT be true?
Some forms of programming syntax, although there are the fringe cases where an equation (or function in programming) is represented by a symbol in conjunction with a parentheses input.
For example:
y(x) = 2*x+3
5+y(1) = 10, as 1 is substituted in for x in the prior equation.
And in some languages a number can be used as a name of a variable or a function, so it can be anything really
I prefer BM-DAS, no one’s out here doing exponents, and no one calls brackets “parentheses”…
I learnt it as BODMAS (brackets, orders, division and multiplication, addition and subtraction).
Edit: I see we’re repeating points from the earlier posts down there 👇 (with default sort).
The way I was taught growing up, brackets are [these]. Parenthesis are (these).
Yes, technically the latter are also brackets. But they can also be called parenthesis, whereas the former is exclusively a bracket. So we were taught to call them separate words to differentiate while doing equations.
I’m a theoretical physics grad student and a night school maths teacher, I have never heard this distinction. People in academia around me call them round and square brackets.
Yeah, but as an adult it depends entirely on whether you’re in an industry or hobby that requires that level of bracket nuance/exponents.
Most of us are just trying to remember the basics.
5 isn’t a valid function name, is obviously the right answer.
It could be a Church Numeral in which case function application is the same as addition and the answer is actually 10…
How can you be sure it’s not defined when we only see one line?
They didn’t say it’s not defined, they said it’s not a valid name. Most languages don’t allow function names to start with a number, so 5 literally cannot be a function if that’s the case.
But that’s assuming this isn’t some really obscure language.
PEMDAS bitches.
Please Excuse My Dear Aunt Sally… bitches.
It’s interesting that you can somewhat tell where you are from based on this, I learned it as BODMAS
I learned BODMAS too! It seems BIDMAS is another one (British I think), PEMDAS is the weird American one, BEDMAS is a thing too. You’re able to vary the first letter (parenthesis or brackets), second letter (indices/exponent/“order” or “operation”), and the order of multiplication/division (MS or SM) and addition/SUBTRACTION (AD or DA)
Very interesting indeed.
O - oxponent?
Orders.
Brackets, Orders (powers and roots), Division, Multiplication, Addition, and Subtraction
Where are pemdas and bodmas users from?
It talks about it here:
Pemdas, USA. Bodmas, UK.
I think most former British colonies use BODMAS
But the USA seems to use PEMDAS? I’m confused now…
They mean Commonwealth countries more precisely
BEDMAS, Canada
I never ran into PEMDAS while growing up, in Sweden I’ve always been taught of it as the following order of operations:
- P
- E & Roots
- M & D
- A & S
Technically roots are a form of exponent, just fractional (square root is power of 1/2, for instance). I can see how it could be easier to conceptualize when you break it down like that though. Neat to see the differences compared to the US breakdown :)
Technically we go for 2. Powers & Roots, I just didn’t want to break the PEMDAS when comparing. :)
That’s PEMDAS…
Syntax error
Obviously the answer is 2+x(y)
And even if you don’t simplify it to y the end result is the same
2+x(y-z) = 2+xy-xz
the answer is [Answer]
The education system did not fail me. I failed my education.
Careful, you’ll summon Smartman Apps (with emojis) to insist mathematics has exactly one perfect unambiguous syntax, where 2*(1+3) is somehow different from 2(1+3), and also reverse Polish notation does-too have parentheses.
37
67
Hut hut!
Gonna keep shouting until it sticks;
Put a goddamn function sign for the parenthesis. Don’t assume everyone just knows what to do with the parenthesis alone. Fml it bugs me every time this meme gets posted.
What? A number next to parenthesis always means multiplication. Are people really not taught this anymore?
Why should anyone do that, an implied multiplication is the normal thing you learn in (I think?) somewhere between 5th to 7th grade. You only add an operator if it’s something else. It’s as basic as PEMDAS.
Counterpoint:
If kids where taught how to solve them properly we wouldn’t need to dumb down equasions.
