Using "math" as an abbreviation for the noun mathematics always grates a little for us Brits (not that we'd say anything), but as a verb it totally works, I math, you math, he/she maths ...
And yet, despite all that annoyance for the ways Americans use the language, a significant number of French derived words are butchered on that side of the pond (e.g. lieutenant).
Touché, but we do agree on les maths.
Mathematics are my favorite subjects. I also enjoy multiple physics.
You use the word "jumper" for a piece of clothing, so I think we might call it even. :)