I always tried to give my kids practical uses for math. Fractions when baking in imperial measurements, decimals when using metric.
I use various forms of math on a regular basis, in work school and hobbies.
But I just started a statistics course and am waiting to see when Standard Deviation will be useful for me outside of school.
It is interesting being back at school as a mature student. I have many friends who are freaked out by the thought of doing university level math, 30+ years after my last high school math class. So far it is all the basics, just put into complex formulas, as long as I do the steps in the correct order, I am getting the correct answer.