I wrote the answers in a separate notebook, but there are some notes written on them. See images 5 and 6. Mathematics textbook for 3rd grade junior high school students. - Title: Standard New Exercises Mathematics 3rd Grade - Table of Contents: Fundamentals of Mathematics, Plane Figures, Solid Figures, Functions, Probability, Statistics, Mathematical Thinking - Content: Mathematics problem collection for 3rd grade junior high school students - Format: Exercise workbook - Language: Japanese Thank you for viewing.