Essential Exercises Year 3 Maths | Australian Curriculum. Some features and benefits of this series of Essential Exercises: Australian Curriculum split up into the various sub-strands or topics. Ten pages (5 levels) of graded exercises for each sub-strand. Hundreds of unique and interesting questions and problems. Written to stimulate, encourage and challenge students of most ability groups. Australian curriculum references and explanations provided for each sub-strand. Two page summary of important ideas and words given at the beginning of each topic. Excellent aid for consolidating knowledge and understanding, as well as diagnosing weaknesses. Comprehensive solutions provided at the end of the book. All books in the series are very comprehensive, clear, concise and user friendly.