this post was submitted on 09 Nov 2023
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WTF why did no one mention this to me when I was struggling with math as a kid?
They probably did, just not explicitly:
You could write (6*1/100)*50 = 6*(50*1/100)
It only uses the commutative property of multiplication and the fact that % is another way of writing 1/100.
Maybe also worth remembering that "x% of y" is just x/100*y
I'm confused again.
It's okay, not everyone learns through the explicit formulas. If the reversable idea is good enough for you, then that's great!