Mental Maths, provides a quick source of self-contained lessons and practice materials, designed to be used as full-scale lessons. These include progressive levels of complexity and difficulty in each section, thus making it possible to individualize instructions, matching the needs of each student. Those who need extra practice and reinforcement for catching up on their skills can benefit from Mental Maths, while other students can use this book for enrichment or as a refresher for skills in which they haven't had recent practice. This book can also be used to diagnose a student's knowledge and skill level, in order to see where extra practice is needed. Mental Maths can be used as homework assignments, classroom or small group activities, shared learning with partners or practice for standardized testing.