...In Preschool, I already learned addition and subtraction. By 2nd grade, I knew my multiplication and division table. By 3rd grade, I was learning fractions. All taught by my mom. Then when it was time for me to take the placement test to enter 7th grade, I was placed into 9th grade math. I learned differential equations when I was in junior year...
10+ subjects, including elementary (k-6th)