Predicted DDD in level 3 btec which is what the university wants however I am missing the maths grade which is grade 6.
What would happen in the event that I get a grade 5 in maths? Will I just be declined just because of one maths grade?
Applying without the right specified GCSE grade is one of the quickest way to get a rejection.
Ask your school if you can retake GCSE Maths during Y13 - you would enter it as another 'pending' qualification' and any offer would include it as an extra condition.