Comment on I dunno

• SmartmanApps@programming.dev ⁨4⁩ ⁨days⁩ ago

  What? A number next to parenthesis always means multiplication

  No, it means distribution, a(b+c)=(ab+ac)

  Are people really not taught this anymore?

  They’re taught distribution yes. It’s only adults who’ve forgotten the rules of Maths who get these wrong

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• x4740N@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

  I live in Australia and don’t recall my school at all teaching me this in maths class

  They taught us stuff like radius and area of a circle but not this

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  • SmartmanApps@programming.dev ⁨4⁩ ⁨days⁩ ago

    I live in Australia and don’t recall my school at all teaching me this in maths class

    I’m in Australia, and I remember being taught it, and I teach it.

    people exist that live in other countries and every countries education system is different

    The rules are the same everywhere, only the notation varies (in Germany they use . for multiply and : for divide, and say “dot before slash”, slash being - and +).

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  • prole@lemmy.blahaj.zone ⁨2⁩ ⁨weeks⁩ ago

    I thought math was relatively universal. The US education system may be different, but I’m certain we’re not the only place that does it that way.

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    • SmartmanApps@programming.dev ⁨4⁩ ⁨days⁩ ago

      I thought math was relatively universal

      It is

      The US education system may be different

      They have the same rules, but they don’t require Maths teachers to have a Maths qualification (in Australia you have to have a Masters), and they have been sliding in world rankings for more than a decade.

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