Collect the clues to become an amazing super-sleuth! Follow each stage of the case and complete the maths exercises to track down and catch the criminal. From addition and decimals to line graphs and pie charts, these books have different challenges to be solved with a varying range of difficulty. These four titles make maths accessible and exciting by relating it to the real world. Each title includes a glossary to explain any mathematical words or terms that the reader may struggle with, to aid the learning process.