About the Book: This third edition mathematics coursebook provides comprehensive coverage of both Core and Extended Cambridge curriculum content using a spiral learning approach that reinforces and builds on previously acquired concepts. Featuring extensive practice questions, support for English as a Second Language learners and engaging NRICH projects from the University of Cambridge, it encourages students to apply mathematical knowledge through real-world problem-solving. With access to Cambridge Online Mathematics and coursebook answers via Cambridge Go, this resource offers a complete learning experience for academic success.