IGCSE(R) Maths CIE (Cambridge) Revision Guide
Maths Functional Question Book - Higher
Maths Functional Question Book - Foundation
It includes fully worked answers for each question, plus details of which maths topics are covered in each themed section - so you can pick of the questions which suit your teaching.
Edexcel Certificate / International GCSE Maths Workbook (with online edition)
Mathematics -- Examinations -- Study guides
Business -- Examinations -- Study guides. Business education -- Great Britain. General Certificate of Secondary Education -- Study guides.
Business -- Examinations -- Study guides ; General Certificate of Education -- Study guides