1st period: Expressions that mix addition and subtraction/Expressions that mix multiplication and division
2nd period: Expressions that mix addition, subtraction, and multiplication/Expressions that mix addition, subtraction, and division
3rd period: Expressions that mix addition, subtraction, multiplication, and division
4th period: Factors and multiples ⑴
5th period: Factors and multiples ⑵
Lesson 6: Reduction and Common Fractions ⑴
Lesson 7: Reduction and Common Fractions ⑵
Lesson 8 Addition of Proper Fractions
Lesson 9: Addition of Mixed Fractions
Lesson 10 Subtraction of Fractions

Correct answer

Consists of 14 levels from pre-elementary school to 6th grade!
『Perfect King Operations』 for studying correct operations
You can study operations according to the school progress by reflecting the number, operation, and regularity units in the math curriculum.

Study 2 pages a day for 5 days, from Monday to Friday!
You can learn the basic operations of mathematics without any burden every day, so that you can study them in parallel with your school math studies.
You can improve your math skills by solving problems steadily every day, gradually increasing the difficulty level, rather than solving a lot at once.


[Perfect King Arithmetic Series]
Pre-elementary: Pre-1, Pre-2
1st grade: Stage 1, Stage 2
2nd grade: Stages 3 and 4
3rd grade: Level 5, Level 6
4th grade: Levels 7 and 8
5th grade: Levels 9 and 10
6th grade: Steps 11 and 12