My sister thanks algebra, calc, trigonometry, and the like is comically easy.
I struggled to barely pass any algebra.
Give her an accounting problem with more than a few lines, there are problems.
I was usually very good at them.
I sucked at higher math, especially the theory. The only reason I got through calc in college was tutoring from my then fiancé now hubby. I have no clue if that was due to my being a chick. I wanted to do well. Calc just gave me fits.