1.
Math Basics Reinforcement Training Book
『Basic Sense』 explains concepts in an easy and systematic way, providing ample basic problems so you can focus on applying the concepts.

2.
Selection of basic and core types essential for practical use
『Basic Sen』 selects essential basic and core types and presents problem-solving strategies for each type, thereby enhancing problem-solving skills.
Additionally, you can strengthen your application skills by sequentially composing transformation and application problems.


3.
Practice possible with past exam questions
『Basic Sen』 allows for practical practice using questions from past school exams with a high rate of appearance.
You can also prepare for descriptive questions by composing descriptive questions.