Intellectuals, apparently: easy math

You, with ADHD: I like my easy math with an extra step or two

Me, literally clinically insane: preeeeeetty sure I find a way to solve that using the factorializing of transfinites and [TREE]3 somehow, maybe not

Googologers: HOLD MY UN/COUNTABLE INFINITIES, BITCH

You can't take three from two,
Two is less than three,
So you look at the four in the tens place.
Now that's really four tens,
So you make it three tens,
Regroup, and you change a ten to ten ones,
And you add them to the two and get twelve,
And you take away three, that's nine.
Is that clear?

Tom Lehrer, "New Math"