1.
Mixed calculations of natural numbers
2.
Yaksu and Bash
3.
Correspondence relationship
4.
Reduce and common fractions
5.
Addition and subtraction of fractions
6.
Perimeter and area of ​​polygons

① You can learn the textbook concepts and principles for each topic and understand the concepts by solving concept confirmation problems.
② After studying the concept, you can solidify the concept by solving problems at the textbook and practice book level.
③ You can develop problem-solving skills by solving problems that may appear on school exams by type.
④ You can solve descriptive problems with the given solution process and practice on your own through similar problems.
⑤ You can check your skills and prepare for school exams by solving representative problems for each unit.
⑥ You can improve your skills by looking at the solution strategy and solving difficult problems step by step at once.