this post was submitted on 27 Nov 2025
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Science Memes

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[–] SSUPII@sopuli.xyz 343 points 2 months ago (66 children)

I feel like I am getting trolled

Isn't 17 the actual right answer?

[–] NewDark@lemmings.world 172 points 2 months ago (1 children)
[–] sem@lemmy.blahaj.zone 137 points 2 months ago (5 children)

So it's just an unfunny meme?

[–] NewDark@lemmings.world 103 points 2 months ago (1 children)

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.

[–] namingthingsiseasy@programming.dev 24 points 2 months ago

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.

[–] ExtremeDullard@piefed.social 21 points 2 months ago

As most memes are.

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[–] marcos@lemmy.world 40 points 2 months ago (43 children)

Some people insist there's no "correct" order for the basic arithmetic operations. And worse, some people insist the correct order is parenthesis first, then left to right.

Both of those sets of people are wrong.

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[–] Truscape@lemmy.blahaj.zone 90 points 2 months ago* (last edited 2 months ago) (156 children)

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.

[–] ftbd@feddit.org 38 points 2 months ago* (last edited 2 months ago) (36 children)

That's not even an equation, just basic arithmetic

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[–] Triasha@lemmy.world 78 points 2 months ago (18 children)

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

[–] baines@lemmy.cafe 28 points 2 months ago (3 children)

you go the other direction below the equator

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[–] Hawanja@lemmy.world 25 points 2 months ago (26 children)

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

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[–] ExtremeDullard@piefed.social 67 points 2 months ago (8 children)

5 isn't a valid function name, is obviously the right answer.

[–] TheRedSpade@lemmy.world 17 points 2 months ago (2 children)

How can you be sure it's not defined when we only see one line?

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[–] banshee@lemmy.world 54 points 2 months ago (22 children)

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

[–] BanMe@lemmy.world 15 points 2 months ago (5 children)

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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[–] jjjalljs@ttrpg.network 46 points 2 months ago (17 children)

I got some people really angry at me when I suggested writing some math expression with parenthesis so it would be clearer. I think someone told me that order of operations is like a natural law and not a convention, and thus everyone should know it or be able to figure it out.

[–] stray@pawb.social 17 points 2 months ago (1 children)

I sometimes like to add unnecessary parentheses or brackets to section things off and improve legibility, but I don't do any math stuff collaboratively, so I have no idea whether others would find that disruptive or helpful.

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[–] brown567@sh.itjust.works 40 points 2 months ago (10 children)

2 5 8 5 - × + for you RPN fans =)

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[–] silver_wings_of_morning@feddit.dk 35 points 2 months ago (1 children)

Any PEMDAS enjoyers in chat?

[–] Karjalan@lemmy.world 19 points 2 months ago (6 children)

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

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[–] I_Fart_Glitter@lemmy.world 32 points 2 months ago (11 children)
[–] KyuubiNoKitsune@lemmy.blahaj.zone 17 points 2 months ago (50 children)

It's interesting that you can somewhat tell where you are from based on this, I learned it as BODMAS

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[–] crmsnbleyd@sopuli.xyz 31 points 2 months ago (5 children)

Let's not do engagement bait here 😭

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[–] nialv7@lemmy.world 23 points 2 months ago (5 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.

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[–] vala@lemmy.dbzer0.com 22 points 2 months ago* (last edited 2 months ago) (9 children)
(* (+ 2 5) (- 8 5))

Hope some LISP can clear this up

Edit:

( + 2 ( * 5 ( - 8 5 ) ) )
[–] yboutros@infosec.pub 21 points 2 months ago (1 children)

Is this a meme? Shouldn't it be

( + 2 ( * 5 ( - 8 5 ) ) )
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[–] DaMonsterKnees@lemmy.world 21 points 2 months ago (10 children)

I'm not seeing a single mention of My Dear Aunt Sally. The youth are lost...

[–] beneeney@lemmy.zip 31 points 2 months ago (1 children)

Aunt Sally said some racist things at Thanksgiving, I'm tired of excusing her smh

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[–] Digit@lemmy.wtf 18 points 2 months ago* (last edited 2 months ago) (8 children)

Hrmm.

I read that as resulting in 21.

My education system did fail me.

I plugged that into ghci as 2+5*(8-5), and it says 17.

:(

I did (2+5)*(8-5).

Doh.

[Edit: (Double doh! Mistyped that here as 5+2. XD)]

[–] A_Chilean_Cyborg@feddit.cl 21 points 2 months ago (4 children)

You do parenthesis first and then multiplications and then sums, you did parenthesis, then sums, then multiplications, wich is wrong.

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[–] DarrinBrunner@lemmy.world 16 points 2 months ago

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

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