Here are some more predicted papers and resources I have found. You may find them useful as some final practice.
On Maths
Scroll down to find predicted papers, mini papers, key topics and demon question papers! You can work through these online without needing to be a member.
Third Space learning - Papers below
Higher paper 2
Foundation paper 2
Higher paper 3
Foundation paper 3
GCSE Maths tutor
Foundation paper 2
Foundation paper 3
Higher paper 2
Higher paper 3