Do you think it will be possible for me to take the Biology and Math II SAT subject tests and make scores above 700 without taking any Bio or Math AP classes? (I will be using SAT official practice material as well as Barron’s to study)
For Math 2, you should take after you finish precalc. There is no calc on the test. No AP class is needed to perform well on a Subject Test. Subject Tests are designed for HS material; AP is college-level,and covels less breadth than needed for the Subject Tests.
Some students feel more comfortable having 2 years of the science first, but that’s a personal choice. Again, it’s not necessary.