Essex dad, does your DD have problems finishing tests in any other subject or is it only maths? I ask because it is quite possible for a bright child to have a slightly slow processing speed but this would probably show in more than one subject. If your DD takes more time for homework, getting through work in lessons or doesn't finish tests then you could ask the school to test her processing speed which could mean her having extra time in exams. This could mean she gets to show what she can do properly and for GCSE it could make the difference in grades. A qualified person does the assessments and the school applies for the time to the boards.
A lot of schools use "mymaths" for at home and the maths teacher or head of maths will give you some advice if you ask. My DD is not great at maths so we used some of the maths help books (there are loads in bookshops and look in charity shops - this is the time for people to get rid and there is often only one or two pages done!) it is good to do the work from the year below to see if there are gaps.
I am sure more mathsy types will know about the best books to try, I felt we just muddled through really but having an ever changing number of maths teachers at DDs school was not helpful and I felt she slipped through the net because of this and struggled.
Hi, DD does not have any problems in finishing the other test's, I looked at the paper and it was alot of questions to answer in the time period given, so I suppose overall she did her best but just need to speed DD up.
Thanks to all.