Maths is short for mathematics, which is a plural, "Math" makes no sense.
What about mathematical equations? Math equations? Do the math(ematical equations)?
...
So, I was intrigued by the etymology. And it turns out, "Mathmatics" isn't plural, but the suffix "-ics" describes a field of study. As always, someone took the time to write it all down: https://www.quickanddirtytips.com/articles/math-or-maths/
Sometimes, the Internet is actually very insightful.
The rest of my response was long enough to make a post out of it. I tagged you, so it should've popped up in your notifications. have a good night!
I rarely check my notifications these days! I have to clean then up so I get fewer!
I bet. Here's one for your reply notifications with the link maybe that's easier 😅
https://peakd.com/@beelzael/re-suffering-math