I'm asking solely about the direction whether studying math ⇒ improves your competence at acquire second languages (L2). "University math" signifies math that an undergraduate math major would take in university.
I'm NOT asking about 1. L1 acquisition.
- or the other direction, whether your math skills are improved ⇐ acquiring second languages. "While bilinguals and monolinguals solved the problems with equal accuracy and took about the same amount of time on arithmetic with familiar sets of operations, bilinguals beat out monolinguals, on average, by about half a second on novel problems."