My daughter is transferring from a comprehensive school to a sixth form at a super-selective grammar. She'll be doing maths and further maths A Level. The minimum entry requirement for the course was a 9 for GCSE maths. Most of the students transitioning from year 11 at the grammar will also have an igcse in Further Maths, but my daughter's previous school didn't do that. Will she be at a massive disadvantage?