Ⅰ.
Properties of triangles

01 Properties of triangles (1)
02 Properties of triangles (2)

Ⅱ.
Properties of a square

03 Parallelogram
04 Various squares

Ⅲ.
three-dimensional figures

05 Similarity of shapes
06 Ratio of the lengths of line segments between parallel lines
07 Center of gravity of a triangle
08 Utilizing Similarity

Ⅳ.
Pythagorean theorem

09 Pythagorean theorem

V.
probability

10 cases
11 probability

A basic textbook on math problems covering all types of school exam questions.

1.
Faithfully reflects the 2022 revised curriculum
2.
Maximize learning effectiveness with a three-level learning system (A, B, C).
3.
Includes the latest school exam questions to help you prepare for frequently appearing and new types of questions.
4.
Includes creative problems to improve convergent thinking skills

1.
All the questions that appear on the exam are in this one book.

Because we've collected and analyzed past school exam questions from middle schools across the country and organized them by type, you can perfectly complete your middle school math studies with just one book, Sen Math.

2.
All problems are divided into 3 difficulty levels: A, B, and C.

A reasonable way to learn math is to tackle problems in order, from easy to difficult.
Strong Math divides all problems into three levels and organizes them by level. In the B-level Type Breakdown, these are further divided into easy, medium, and high difficulty levels to systematically develop math skills.


3.
Presenting three-dimensional and detailed types by concept

Problems arising from a single concept can appear in many different types.
All problems to be covered in Middle School Mathematics 2-2 are categorized into 157 types and organized into 1,142 problems to enable sufficient practice by type, thereby developing problem-solving skills.