Practise WJEC GCSE Maths Simplifying Algebra with exam-style questions for Foundation and Higher tier. 88 questions, matched to the WJEC GCSE Maths (3320QD) specification and written in Unit 1, Unit 2 and Unit 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.