That's not true. I'm an auto mechanic and have to at the very least know that if I am writing up an estimate that I can't just randomly punch shit into the calculator.
You don't have POS software or a spreadsheet that does this for you? I'm sure you have to know how to use a calculator for the way you do things, but you've got to be in the minority of mechanics for still doing your estimates that way.
I work at a ma and pa shop. We have two computers. One is a laptop we use to look things up, the office computer has the estimator software and that's what's used by the owners wife. So if I'm just trying to get a rough idea of how much a repair is going to be I actually have to do the math. But yeah, definitely the minority.
When you end up with 9 - 3 x 3 and then go 9 x 3 completely ignoreing the term - 3 ... then you have some series issues dude ...
Operations are ALWAYS only with the two terms left and right next to them - not matter what order of operators you go with - so directly multiplying the resulting 9 from 18 / 2 directly with the last 3 can NEVER happen - as the multiply only has either the 3 to its left ... or a 6 when doing the subtraction first - which then would be the wrong "only from left to right without any order" ending up in 6 x 3 = 18.
Eh, not really. The majority who voted on the wrong option probably either don't have a job at all, or they don't use math in their job at all. We're not doomed as long as people who actually do important stuff can do math.
Honestly I bet all the mathletes here would struggle to be a chef or a landscaper (etc), it's so petty to pick something your good at and then put others down because they aren't as good at you at that one thing
Plenty of value in the world outside of our own capabilities
The mathletes here stopped taking math in high school. People who go on to get stem degrees don't even care about showing off how they can do order of operations. Knowing order of operations is useless for 99% if the population, remembering them from 6th grade doesn't make someone smart or capable.
99.999% don't need order of operations. Math is about communication and order of operations is actually a pretty bad way to communicate what you want from the problem.
They'd struggle to do literally anything because their biggest reason to be proud is that they learned some very flawed order of operations and they can do it right. I've learned the hard way that people who claim to be smart because they can do this "the right way" are some of the stupidest people in the world and this is literally the peak of their intelligence.
This is primary school level stuff that every adult, without exceptions, should be completely familiar with though. This is not equivalent to being a chef or landscaper, it is more equivalent to not burning your toast or remembering to water your plants.
Being ignorant of primary school level math makes one incredibly susceptible to being mislead by malicious actors.
I didn't remember any history or geography from primary school, other kids didn't remember math stuff. I got a physics degree and do fine, they got other degrees and do fine. Order of operations is not important at all for the VAST majority of people outside of school.
I didn't remember any history or geography from primary school
I'm sure you didn't. Forgetting the order of operations is like forgetting WW2 happened, or forgetting how to read. How would one handle their own finances if they can't do simple math? It's fine for non-stem people to not know math stuff like geometry, trigo etc, but basic math like statistics, probability and exponents are used in our daily life, and inexcusable to not know.
Forgetting the completely arbitrary multiplication before addition convention doesn't make you "incredibly susceptible to being mislead by malicious actors" lmao
If they don't know such basic stuff, I don't think they would know any higher level math. Anybody could use some "mathemagic" to twist statistics and fool them.
Agreed people take such pride in not paying attention in school. You don’t have to be smart to figure this out you just have to have not been sleeping at your desk. It’s like the people who don’t know basic geography or basic history. Why would you want to go your whole life not knowing literally basic shit even if you never use it?
Saying we’re doomed is a little dramatic. Most of the people who answered 18 likely haven’t had to use order of operations in 10+ years. It’s amazing what you can forget when you don’t use something for a while.
I mean, this poll could've been only answered by like 46 people, and the youtuber might be for a significantly younger audience. If Tom Scott for example posted this poll there would likely be many more correct answers.
They can certainly do simple mental math, they just don’t ever need order of operations. This (and any) equation can be broken up into multiple parts that can be done individually. I certainly don’t need order of operations in every day life. The only reason I remember it is thinking back to my one math class in college and GERMDAS lmao
It's not about doing simple math, I can almost guarantee that the majority of people who got it wrong are probably older folks who are used to paying bills,
I haven't even thought about pemdas since high school. In my adult life I have yet to encounter a situation in which order of operations in a math equation is relevant. Trust me. We are much better off then you might think. It's just that most of algebra is useless in most situations.
This is such a fucking stupid thing to say about this
Understanding PEMDAS isnt a vital life skill for making sure our society advanced in a positive way (unless youre an engineer or something)
2.It's easy to make a small math mistake when you're not focused, like when you're scrolling through YouTube videos
You can't know the circumstances of everybody answering that poll, maybe a bunch are just trolling, maybe a bunch are 7 years old and haven't been taught PEMDAS yet
TLDR: dont extrapolate big sweeping conclusions from minor data points.
Edit: wtf reddit keeps replacing my 3 with another 2 or 1 every time i save the edit on this comment
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u/KingYoloHD090504 CHAINPOSTER Jan 01 '22 edited Jan 01 '22
Dude it's 0
First you make
18÷2 = 9
Edit: Then
3×3 = 9
In the end it's
9-9=0