If you get a B or a low A grade in your AS Level Maths, is an A* possible overall?

I think to get an A* you need an overall UMS% of 80% across all modules with an average of 90% on the A2 modules. (Correct me if this is wrong)

So it's perfectly possible - you just have to do well in the A2s

assuming you got this in AS:

C1- 90
c2- 75
M1 - 75

then in your A2, you must average 90 across c3/c4 + have 480/600 total across everything:

C3- 89
C4- 91
M2 - 60

this person had 480/600 total, and he averaged 90 across c3/c4, therefore he has A*

hope this helps

EDIT: but you have to think realistically, if you got low A's in AS, can you get 90's in c3/c4?

oh ok thanks, so basically 480/600 is the minimum to get an A*?

Possible, albeit unlikely as the A2 is much harder. My friend dropped from an A at AS to mid/low B. Theoretically you could get an A* without getting an A at AS as the 90%+ over C3 and C4 should bring the overall average to the 80%+, so as long as the S2/M2 doesn't go badly to pull the average down (although 90 in it isn't part of the A* requirement.)

I got a mid-B at AS and I think I might have an A* now. It's possible, whether you want to try and get 90% in C3/C4 is another question.

If i got predicted an A, but actually got an A*, do you know whether it is possible to reapply to those Universities which i initially wanted to go to with those high entry requirements (providing i met them in my a levels) but couldn't because my teachers predicted me the lower grade? i can try and explain again if that doesn't make sense

Yes (but dont forget the average of 90 across c3 & c4 too)