I purchased this book roughly 6-7 weeks before the actual mathematics exam, thinking that it was too late to revise the majority of the year 9 curriculm. But I found it simple, fun and easy to understand because of its unique teaching methods. For instance it had useful pictures, strange jokes and questions at the end of each chapter to test your knowledge. All of which proved to be extremely helpful, due to the amount of time I had to revise.
This book is a life- saver that fills you with confidence,
Thanks CGP