your kids will have amazing opportunities just because you are obviously a kick ass parent. but I don’t think squeezing two years of math in 6 months will do anything
For example, when I took trigonometry in high school I did none of the homework, showed up to the tests and aced them. That led me to getting a C in that class (kindly the teacher advanced me to pre-calc, but forced me to retake trig as well). That's basically the attitude I had throughout high school and undergrad. I'm positive I could have amounted to more earlier in life (only years later did I return to academia to earn my PhD in CS after tiring of industry).