Comment on I dunno
x4740N@lemmy.world 2 weeks ago
Its because its
2+5×(8−5)
My calculator app automatically added it when typing in what was I’m 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
Its because its: 2+5×(8−5)
No it isn’t. It’s 2+5(8−5). Different expression, but in this case co-incidentally the same answer. Preface the first 5 with a Division and you get different answers.
My calculator app
Was written by a programmer who didn’t check the rules of Maths first. The only e-calc I’ve ever seen give the correct answer is MathGPT
not writing it properly
Except it is written properly, as per Maths textbooks
5(8-5) is perfectly fine, it’s like saying 5 apples
it’s like saying 5 apples
5 baskets each with 3 apples actually
I mean yeah, in my example apple = 3
What du you mean, not writing it properly?
What du you mean, not writing it properly?
They mean they don’t remember being taught that is the correct way to write it
I have some bad news for you about your education system
I have some bad news for you about your education system
It’s not the Education system, it’s people not remembering what they were taught
odelik@lemmy.today 2 weeks ago
The multiplication is implied and has been part of the standard mathematical notation for far longer than any of us have been alive.
SmartmanApps@programming.dev 4 days ago
No it’s not. It’s explicitly The Distributive Law, a(b+c)=(ab+ac). There is no Multiplication
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