The joke was also explained in the title of the post "A Very Emphatic Answer" which highlights the exclamation mark (emphasis) on the answer as being important.
I hate how these things always come up because "order of operations!" It's mostly people who are bad at math remembering one topic they struggled with and finally got right, and now they know it's a touchy subject so it will drive engagement. It's the modern equivalent of "Mathematicians hate this one secret for solving equations! Click to find out!" Pure engagement bait.
But in all the engineering ive done, things never really come up like this. If there is any potential clarity issues, parentheses would be used, or it would be formatted in a way that makes it much more clear.
40 - (32/2), or 40 - ³²⁄₂ has no clarity issues imo. You don't even have to think about order of operations because 32 halves is a number on its own. it isn't an "operation" to do necessarily, it's a fraction to reduce.
And yes, I get the joke. The joke is making fun of the engagement bait of "some people will get the order of operations wrong!"
The joke
(40 - 32)/2 = 4
If you stop here, you used the wrong order of operations. This is where the the fights normally start in the replies.
It does leave ambiguity with it being an, apparent, quote/dialogue. Correct and Incorrect are both correct depending on your POV and how you interpret social media posts
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Even your "BODMAS" isn't universal, lots of people learn "PEMDAS" or "BEDMAS"
At any level of mathematics after elementary school, you never see terrible expressions like this. Well, except for facebook and twitter
Take for example:
2/2*2
It is 0.5 or 2 depending on order. But if I were anything after high school (I was more complacent in high school, I guess) if someone gave me an arbitrarily solved equation or expression like this, I would be livid and raise hell at them for trying to do that.
Just because it can be written The original way doesn't mean it should be. It's like developers that use obscure or single letter variables instead of descriptive variables. Sure, you can write variables in an obtuse manner, but it's better for everyone if you write them in a descriptive manner.
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