All trainee teachers in the UK seeking to gain Qualified Teacher Status now need to pass a computerized numeracy skills test. This test is intended to ensure that everyone qualifying to teach has a good grounding in the use of numeracy in the wider context of their professional role as a teacher. This book explains the requirements of the test and includes essential subject knowledge, as well as over 100 practice questions and answers.
I used this for the style of questions rather than techniques as my Maths knowledge is pretty solid. A useful tool for that, although a couple of errors within.