Description Numbers and Operations 1. Multiples and Divisors 2. Application of Magic Squares 3. Numeral Systems 4. Sum and Product of Consecutive Numbers 5. Numbers That Meet Given Conditions 6. Operational Figures with Patterns 7. Stacking Blocks 8. Counting Shapes That Meet Given Conditions 9. Properties of Triangles 10. Cross-Sections and Shortest Distances of Solid Figures Author: CMATH Math Research Institute Recent works: , , <[Set] Gifted Critical Thinking Math 1031 Pre A~D (4 Volumes)>... 144 titles in total About: The CMATH Math Research Institute, composed of researchers with passion and talent for math education, develops the best and most optimal math curriculum and content to strengthen learners' mathematical thinking skills, based on the academic characteristics of mathematics and a learner-centered educational philosophy. CMATH has led the way in math education by developing the 'CMATH' and 'AP Math' programs, which popularized the concept of 'critical thinking math,' as well as the gifted program 'Gifted,' the published '1031' Math/Science series, the '1031 Gifted Aptitude Test,' the 'Top Math 960' series, the 'Top Clever Math' series, the 'Thinking Toddler Math' series, the 'Top Math TenTen: Exploration and Solution of Problems' series, the 'Think Math 1031' series, and a variety of multimedia math content.