13+ Maths Practice Book for the Common Entrance Exams (exams up to June 2026) (CGP 13+ ISEB Common Entrance) written in pencil up to page 12 This Exam Practice Workbook is the perfect way to practise for the ISEB 13+ Maths exams. It contains super-useful practice questions - with exam-style questions at the end of every section. On top of all that, there are full practice exam papers in the back of the book covering Mental Arithmetic, Core and Additional Level, including detailed answers for easy marking.