Comment on I dunno
Alaknar@sopuli.xyz 2 months agoDivision, Multiplication, Addition, and Subtraction
This is fucking so many people over… It should be limited - like Orders - to only Multiplication and Addition.
Because division is the same operation as multiplication, and subtraction is the same operation as addition, and they have the same “weight” in the order of operations (meaning, you do them left-to-right).
It should be limited - like Orders - to only Multiplication and Addition
Because you don’t want people to know when to do Division and Subtraction? 😂
Because division is the same operation as multiplication
No it isn’t, but they are both binary operators.
they have the same “weight” in the order of operations (meaning, you do them left-to-right)
And where are they going to do Division and Subtraction in the left to right if you’ve left them out? 🙄
Because you don’t want people to know when to do Division and Subtraction? 😂
Because division is multiplication, and subtraction is addition.
No it isn’t, but they are both binary operators.
2/2 is the same as 2*½
2-2 is the same as 2+(-2)
And where are they going to do Division and Subtraction in the left to right if you’ve left them out? 🙄
Well, as I already said multiple times: Division = Multiplication and Subtraction = Addition, therefore they would be doing them together, left to right. As in: 9-3+2 would not confuse anyone who learned “Addition → Subtraction”, as it does right now.
Because division is multiplication
No it isn’t.
and subtraction is addition
And you still have to do both
2/2 is the same as 2*½
They’re equal in value, they’re not the same
2-2 is the same as 2+(-2)
You got that the wrong way around. Brackets have only been used in Maths for a few centuries now
Well, as I already said multiple times: Division = Multiplication
And you were wrong every time you said it.
therefore they would be doing them together
Not if you left them out of the mnemonic and they didn’t know when to do them
No it isn’t.
Yes, it is.
And you still have to do both
Quote the part where I said you didn’t.
They’re equal in value, they’re not the same
They are the same.
You got that the wrong way around. Brackets have only been used in Maths for a few centuries now
And you were wrong every time you said it.
No, they’re not.
Not if you left them out of the mnemonic and they didn’t know when to do them
Mnemonic without understanding what you’re doing doesn’t help. Which is why people get confused and argue online that you must do addition before subtraction, or the other way around, depending on what the mnemonic they learned was.
Understanding that subtraction is just the addition of a negative number solves this problem.
KyuubiNoKitsune@lemmy.blahaj.zone 2 months ago
Another commenter mentioned something similar, how they’re interchangeable, but I’m not sure why you say it’s fucking people over.
Alaknar@sopuli.xyz 2 months ago
Because the people who learn “MA” or “AM” then spend hours online arguing that you must do one before the other.
KyuubiNoKitsune@lemmy.blahaj.zone 2 months ago
People do be arguing, lol
moriquende@lemmy.world 2 months ago
Did you mean MD and DM?
Alaknar@sopuli.xyz 2 months ago
Yeyeyeye, sorry, long day.