Tried out the Functions & Algebra Topic Test from BoS — solid little resource. It’s only 35 marks and labelled “relatively easy,” so it’s good for a quick practice run rather than a full-on exam. Covers the basics well (functions, algebra, surds), but don’t expect super challenging questions or detailed solutions.
Overall: useful for revision or a warm-up, but you’ll still need tougher questions if you’re aiming high.