▶ 5-2

1.
Range and estimation of numbers
2.
Multiplication of fractions
3.
Congruence and symmetry
4.
Multiplication of decimals
5.
rectangular solid
6.
Average and probability

Composition and Features

▶ Progress book

1.
Learning the concept
We have explained the core concepts of the textbook in detail and created activity problems to help you understand the concepts you read.
Additionally, to help you immediately check whether you have understood the concepts well, we have included concept problems from textbooks and workbooks on the next page.

2.
Building basic skills
Prepare to build your fundamentals and improve your skills with concept-based intensive problems.
Solve all the problems necessary for the basics, including textbook and practice book problems as well as descriptive questions.

3.
Developing application skills
Mathematical skills can be acquired by developing problem-solving skills through applied problems.
Develop your skills by solving representative application problems for each unit.

4.
Unit assessment
We have provided problems ranging from low level to applied level to help you finish learning the unit.
We have also selected questions that frequently appear on school exams, so you can use them to prepare for regular assessments and school exams.

▶ Skill Enhancement Materials Collection

- You can prepare for the descriptive section by practicing step by step, starting with the follow-up questions.
- You can solve the unit assessment problems one more time.