this post was submitted on 27 Nov 2025
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What? A number next to parenthesis always means multiplication. Are people really not taught this anymore?
No, it means distribution, a(b+c)=(ab+ac)
They're taught distribution yes. It's only adults who've forgotten the rules of Maths who get these wrong
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
Edit:
Also counterpoint, people exist that live in other countries and every countries education system is different
I'm in Australia, and I remember being taught it, and I teach it.
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 +).
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.
It is
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.