Thanks Guest - that interesting to know - my dd is in the middle of the top class for maths , if that makes sense , English is much more her "thing" , but she is doing fine , however confidence is really low - she is a perfectionist , so gets stressed if doesn't think can do something , so we decided like you , that book 2 the best place to start to build her confidence . Ironically , I set her one this morning , but didn't set time for her , and she finished it in 15 mins - got 80% so few wrong , but I know these are( mostly) ones that she hasn't covered. Think will carry on not timing , then once finished next couple of books , buy them again and do them as timed exercises !
We have CEM 11+ here , so timing will be her issue - she is the one that has decided she wants GS place as her friends are all talking about it , but I'm not pushing it too much , so just doing bits that will help her general school work and see how get on.
Our school takes the view that they should be getting some wrong or it is not challenging enough. One of mine is both a perfectionist and very low in confidence too (long story), so what we do now is work through them together, with him doing each question but with my guidance. This way he gets the learning of tackling something he hasn't done before, or that is more challenging, the new found confidence from being able to work it through, but without the knock to self esteem from not being able to do it.