We had Saxon math. We had a tutor. Then a catholic friend of mine, college math teacher, tutored our 2nd child. She said that the math, that is all the brackets and negatives are no good and will never be used in life. One of those secular ways to dumb down the student/ holding back. So, she taught enough for our teen to pass and get on. She recommended to let the kids take GEDs and go forward. That was with Seton in the 90's.
So, if you run across that math that I am speaking of, I think they call it algebra, but it is not the algebra that we had in school in the 70's. If you want to skip that nonsense of math, you can certainly do so. I don't know if one will see it on a test later in life, but our kids are ages 30 - 42 and are doing just fine in life.