I'm not in Kin so I can't speak from experience but I do know two friends who never took physics in highschool and they didn't take 1L03 till second year and they were completely fine with all of their 1st year courses.
Also, in terms of high school marks... I don't think you can be certain based on your grade 12 math marks because university is WAY different. It is likely that you'll probably do well, given your mark but you also have to put in the work
There's Math 1LS3 and Math 1A03. Math 1LS3 was a pretty easy course and concepts weren't too hard. On the otherhand, if your a math person, you may choose Math 1A03 which is a bit more challenging.