Comment on I dunno

• Alaknar@sopuli.xyz ⁨2⁩ ⁨days⁩ ago

  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.

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  • SmartmanApps@programming.dev ⁨2⁩ ⁨days⁩ ago

    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

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    • Alaknar@sopuli.xyz ⁨2⁩ ⁨days⁩ ago

      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

      1. How is that “having it the wrong way around”?
      2. What does that have to do with the topic at hand? We’re talking about maths today, not centuries ago.

      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.

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      • SmartmanApps@programming.dev ⁨2⁩ ⁨days⁩ ago

        Yes, it is

        No it isn’t 😂

        Quote the part where I said you didn’t.

        The part where you said to leave it out of the mnemonic “It should be limited - like Orders - to only Multiplication and Addition”

        They are the same.

        Nope. 2/2 is not the same as 2*½. Do you need glasses or something??

        How is that “having it the wrong way around”?

        Because 2-2 came first, before we started using Brackets in Maths, by several hundred years

        What does that have to do with the topic at hand?

        You glibly ignoring the history and rules of Maths 🙄

        No, they’re not

        Still wrong 😂

        Mnemonic without understanding what you’re doing

        That’s EXACTLY what the mnemonics are for! 😂 Don’t need to understand it, just follow the steps

        Which is why people get confused and argue online that you must do addition before subtraction

        No-one gets confused or angry about that. 😂 There are textbooks that specifically teach to do it that way

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        or the other way around, depending on what the mnemonic they learned was

        I have never seen any textbook say to do Subtraction before Addition, everyone is taught Addition first

        Understanding that subtraction is just the addition of a negative number solves this problem

        Understanding that you can do them in any order proves there is no problem 😂

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