H,i we are using Peter Robson books, which we think are great because they give clear examples which are easy to follow and then have questions on each subject which get increasingly difficult. We (and I mean we as maths was never my strong point) are currently looking at fractions, multiplying and dividing them and the book is invaluable. Also have used the AE tuition books which are good as well, providing examples and questions. My DS looks at both and then choses questions and examples from each. The books can be bought via amazon or the booksite here. Hope this is helpful.