1.
Range and estimation of numbers
① Above and below
② Excess and less
③ Up
④ Discard
⑤ Rounding

2.
Multiplication of fractions
① (Proper fraction) × (Natural number)
② (mixed fraction) × (natural number)
③ (natural number) × (proper fraction)
④ (natural number) × (mixed fraction)
⑤ (Proper fraction) × (Proper fraction)
⑥ (mixed number) × (mixed number)
⑦ Multiplication of three fractions

3.
Congruence and symmetry
① Congruence of shapes
② Line symmetrical figure
③ Point symmetry figure

4.
Multiplication of decimals
① (prime number less than 1) × (natural number)
② (prime number greater than 1) × (natural number)
③ (natural number) × (prime number less than 1)
④ (natural number) × (prime number greater than 1)
⑤ Multiplication of prime numbers less than 1
⑥ Multiplication of prime numbers greater than 1
⑦ Position of the decimal point in the product when multiplying a natural number and a decimal number
⑧ Position of the decimal point in multiplication of decimals

5.
rectangular solid
① Rectangular solid and regular cube
② Properties of a rectangular solid
③ Aiming diagram of a rectangular solid
④ Development of a cube
⑤ Development of a rectangular solid

6.
Average and probability
① Average
② Express and compare the likelihood of an event occurring in words.
③ Expressing the probability of an event occurring in numbers

『Concept + Operation Light』 strengthens conceptual memory with one-cut concepts,
This is an elementary math textbook that strengthens calculation skills through calculation techniques.

【Complete Basic Skills】 Includes all units (not only operations, but also shapes, measurements, etc.)
【Strengthening Concept Memory】 Includes one-cut concepts to help you learn concepts easily and enjoyably.
【Strengthening Ability to Calculate】 Includes secrets to elementary equation calculations that will help you develop your numerical sense and speed up your calculations when you memorize them.

『Concept + Operation Light』 has been released for students who want to practice all operations in elementary math without missing anything.

By learning with 『Concept + Operation Light』, you can perform calculations quickly and accurately through calculation secrets that help you calculate quickly and accurately, and you can perfect your calculation skills by supplementing any skills you lack with the "Clinic Book" that fills in your skills.

By learning with 『Concept + Operation Light』, you can build a solid foundation in mathematics.