Umm, this
incredible math skills let her calculate the precise angles needed to shoot the bolts out of an armored window as she leaps towards it from an adjacent roof; to time a kick so that it breaks her opponent’s jaw without breaking his neck, or to trace back the path of a sniper’s bullet with eerie accuracy and return fire.
does not seem to me to be primarily about maths skills, per se, but much more about hand-eye co-ordination and practical skills.
But it’s fiction, and it sounds like a good premise for a story/character, so I’ll add it to my virtual reading list (the physical one is already too big).