Koguma-kai Hitori Tokkun 13 Storytelling 60 Describing Appearance Words 65 Number of Building Blocks 5 More and Less Numbers 10 Discovering the Number of Items 17 Classification Coefficient 2 No writing, slightly creased. The main book is 660 yen each. Entrance Exam Preparation: Daily Training in Specific Areas - Number Operations The main book is 1100 yen.