Knowing the order in which arithmetical operations take place needs to be instinctive for students - starting to learn about them and consolidating until the age of 14. Ensuring understanding and fluency among students is vital. Yet how to keep them interested and involved when checking understanding and reinforcing? This book brings to the teacher - or parent - invaluable options through blackline masters: includes worked examples, questions and puzzles. dispels any myths and misunderstandings concerning the order of operations fosters an enjoyment of problem and puzzle solving.