this post was submitted on 27 Nov 2025
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Science Memes

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(page 5) 20 comments
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[–] WorldsDumbestMan@lemmy.today -2 points 4 hours ago (2 children)

That's so evil and subtle. It took me multiple attempts to figure it out. You have to have quite the sharp eye to realize: no, you do not stop at calculating the numbers in parantesis first. You don't add the resulting numbers, there is no +/- operator, so the number in parantesis is the power of the number before it. But wait! if You calculated 2+5 = 7 * 3 and hot 21, you are wrong. Remember that multiplication goes first, so it's: 2+5(8-5) = 2+5*3=2+15=17

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[–] nomorebillboards@lemmy.world -3 points 2 hours ago (2 children)

But 2 + 5 + 8 - 5 is 16 - 5 which is 11

[–] untorquer@lemmy.world -5 points 1 hour ago (2 children)

Gotta distribute:

2+(8+5)-(5+5)

2+13-0

15

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[–] Sertou@lemmy.world -3 points 5 hours ago (5 children)

Or it simply could be that I haven't needed to concern myself with the order of operations more than a dozen times since high school. Even when working as a web coder it was so seldom necessary that I can't recall a single example.

The US education system was still pretty decent when I was in middle and high school in the 1980s, so we definitely covered this in algebra.

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[–] x4740N@lemmy.world -5 points 1 hour ago* (last edited 1 hour ago) (2 children)

Its because its:

2+5×(8−5)

My calculator app automatically added it when typing in what was in the image and "2+5×(8−5)" does equal 17.

It's absolutely the fault of the person making the social media media post for not writing it properly and confusing people.

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