Earlier quoted context omitted.
> I am not a math person. I can do math, but my brain is wired for language. Not a good time to introduce not's in my opinion. It might work (as it did for you), but it's high risk.
Like I said the second answer applies to me personally. I often say this to convey my honesty and to plainly state that I have a minor weakness that is compensated by a superior strength. If the job requires a math person to sit and code and not talk to non-technical people, then I am the wrong person for that job and both parties are better off if they hire someone else.
Omitting the first part keeps the message and sounds cleaner to me, without risking the person thinking "not good at math? like basic logic?" (rather than the cal 3 you had in mind or whatever).
It's rarely beneficial to use up time highlighting anything you're bad at, rather than better emphasizing what you are good at.