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Maths
(media.piefed.world)
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this post was submitted on 02 Sep 2025
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Can we say "commutative" in this case ?
Yeah stuff like that really ain't it. It works in a few use cases, but is objectively wrong and detracts from understanding the topic properly. That's why I teach percentages as the fractions they are. By the time you learn percentages, you already know multiplying fractions is commutative, so the trick still works, and you also understand why.
Yes it is
It works in every case where you have multiplying and dividing, including fractions and percentages
No it isn't
Enhances it actually
Sounds like you're only teaching as much as you understand. Try understanding more. Students love the tricks that make Maths easier, including this one.
What about pi%?
That's pi/100 still. Didn't say it was a rational number, just that it was a fraction. Though I don't see a context where it'd make sense.