this post was submitted on 27 Nov 2025
634 points (92.5% liked)

Science Memes

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[โ€“] crmsnbleyd@sopuli.xyz 2 points 1 hour ago

Let's not do engagement bait here ๐Ÿ˜ญ

[โ€“] nialv7@lemmy.world 9 points 5 hours ago (2 children)

Precedences are just made up social constructs, don't let the system restrict you, you can evaluate this expression however you want. Go wild.

[โ€“] DarrinBrunner@lemmy.world 9 points 7 hours ago

My education system didn't fail me, I failed it.

[โ€“] silver_wings_of_morning@feddit.dk 30 points 10 hours ago (1 children)

Any PEMDAS enjoyers in chat?

[โ€“] Karjalan@lemmy.world 13 points 7 hours ago (1 children)

I assume p is for "parentheses", because where I grew up it was BEDMAS, for brackets.

[โ€“] JargonWagon@lemmy.world 3 points 4 hours ago

Yes, indeed - it encompasses parantheses, brackets, and braces.

[โ€“] ViperActual@sh.itjust.works 11 points 10 hours ago (3 children)

2+5(8-5)

For anyone wanting to see a different way of solving it with distribution:

2+58-55 2+40-25 42-25 17

So long as you follow the basic math rules, you can solve it in many different ways to get the same result.

With formatting fixed:

2+5*8-5*5
2+40-25
42-25
17
[โ€“] CheesyFox@lemmy.sdf.org 3 points 5 hours ago* (last edited 5 hours ago)

use backslashes pefore asterisks so that the markdown parser won't think you inted to write in italics

\*like this\*

*like this*

[โ€“] Khanzarate@lemmy.world 4 points 6 hours ago

Worth a reminder that *'s get converted to italics. At first I saw the 2+58-55 and was very concerned for your education.

[โ€“] Triasha@lemmy.world 68 points 16 hours ago (6 children)

Pemdas, parenthesis first, for a total of 3. Then multiplication, 15, then addition. 17. What's hard about this?

[โ€“] Hawanja@lemmy.world 15 points 10 hours ago (1 children)

What's hard about it is people are fucking stupid.

[โ€“] TheKingBee@lemmy.world -2 points 4 hours ago* (last edited 4 hours ago)

No, it's written poorly to drive engagement. People read left to right and try to do math that way too, but if you want to be mean to people who don't remember things they learned in elementary school then never applied in real life you write it like OP.

(8-5)5+2

Far easier for most people, but then you don't get the arguments...

[โ€“] baines@lemmy.cafe 16 points 11 hours ago (3 children)

you go the other direction below the equator

[โ€“] Bakkoda@lemmy.world 10 points 11 hours ago

Legit gave me pause for like half a second. Damnit lol

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[โ€“] vala@lemmy.dbzer0.com 15 points 13 hours ago* (last edited 12 hours ago) (9 children)
(* (+ 2 5) (- 8 5))

Hope some LISP can clear this up

Edit:

( + 2 ( * 5 ( - 8 5 ) ) )
[โ€“] yboutros@infosec.pub 19 points 12 hours ago (1 children)

Is this a meme? Shouldn't it be

( + 2 ( * 5 ( - 8 5 ) ) )
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[โ€“] MattW03@lemmy.ca 9 points 12 hours ago* (last edited 12 hours ago) (1 children)

Let's keep it easy. There's 2 + all the other number who results in 15 = 17.

Someone may mistake by doing 2+5 then the rest of the operation, resulting in 21. But is wrong.

Could also fuck up and get 51

[โ€“] banshee@lemmy.world 48 points 16 hours ago (11 children)

I'm sorry but isn't this elementary school math?

[โ€“] BanMe@lemmy.world 11 points 10 hours ago

It became a meme a few years ago, people would post problems like this and argue about whose was right, as if there were no objective truth. It hurt to watch.

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