[gpt5]

If you, or someone else is seriously considering learning math from the basic at a high level, I’d recommend picking up “art of problem solving, pre-algebra” book, and walking up from there.

These sets of books are universally considered to be among the best math education resources by mathematicians and others, and they start from the very basic (such as the number line and basic operations), but without the need of practicing elementary school material like counting.

[jacksnipe]

I think the TAOPS curriculum would be incredibly challenging for somebody who has actively incorrect intuitions about math.

[sn9]

I think if you've literally never seen the material before, you might be right.

But for anyone who's graduated high school, a lot of it would be at least a second encounter so you'll be reviving forgotten knowledge which is much easier while also diving deeper in your second pass.