This Singapore Math 2022 Edition! Primary Mathematics Grade 1 Semester 1A Workbook Set includes 3 Books: 1. Singapore Primary Mathematics Student Book 1A (2022 Edition) 9789814911368 2. Singapore Primary Math 2022 Edition - Additional Practice 1A 9789814911566 3. Primary Mathematics Mastery and Beyond 1A (2022 Edition) 9789814911764