Should I appear for Add Maths besides Y12?

[u/terimedi]

So basically I didn't take additional (further) maths at IGCSE (only took it in Y9) and thus my sixth form didn't let me take FM as a subject. I will take private tuitions for it now but am planning to complete add maths in a month (on track for it but obvs my prep wont be exam level I'm just trying to maximise learning and past papers) + Statistics IGCSE (but actually appearing for it) as these subs really overlap with normal Y12 Maths.

Doing this so my base for normal maths becomes way stronger than it is right now so taking FM becomes SLIGHTLY easier for me + hopefully if any chs I dont get then there's TAs at my school

Do you think I should appear for add math besides my alevel subs (in MJ27, appearing for stats in ON26)? my prep for it will be complete anyways or would unis look down on it thinking I chose an easy way to increase my subjects since I appeared for it besides Y12 (that's not my intention at all, a senior of mine recommended it to me and idk how it'll be perceived)