DD did intuitive math at 2 but you creating a framework for solutions does not mean diminishing talents. And early algebra was in grade 3 math with CTY.

No reason not to pursue online math and let them get challenged. Having been a kid that found school work easy, I suggest let them do the online math to a point of curiousity and challenge. Taking the easy road of knowing the answer, in my experience leads to bad habits and laziness. Though math was pretty easy, even in university engineering. But heat, math and momentum was another story. Good habits would have been welcome then.