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I dunno (piefed.cdn.blahaj.zone)
submitted 1 month ago by LadyButterfly@piefed.blahaj.zone to c/science_memes@mander.xyz
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[-] A_Chilean_Cyborg@feddit.cl 21 points 1 month ago

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

[-] merc@sh.itjust.works 2 points 1 month ago

You don't necessarily have to do parentheses first. What matters is that the things inside the parentheses are a group that you can't break apart. If you have 10÷2+3-2*(2+1) you can do the division first 5+3-2*(2+1) then the addition outside the parentheses 8-2*(2+1) It's just that before you do the multiplication of the term outside the parentheses, you have to handle the parentheses group, so you get 8-2*3 -> 8-6 -> 2

[-] SmartmanApps@programming.dev 0 points 1 month ago

You don’t necessarily have to do parentheses first

Yes, you do necessarily have to do it first

What matters is that the things inside the parentheses are a group that you can’t break apart

And outside, and you must do them first. You haven't finished Brackets until you have 5(8-5)=15.

10÷2+3-2*(2+1) you can do the division first

only because you've separated that part with a plus sign

[-] SmartmanApps@programming.dev -1 points 1 month ago

then multiplications

There aren't any, only Addition and Brackets (and Subtraction inside Brackets)

this post was submitted on 27 Nov 2025
740 points (91.1% liked)

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