1.
Range and estimation of numbers

① Above, below
② Over, under
③ Utilization of the range of numbers
④ Up
⑤ Discard
⑥ Rounding
⑦ Use of rounding up, down, and up

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 Properties of congruent figures
③ Line symmetrical figures
④ Properties of line-symmetric figures
⑤ Point symmetry figure
⑥ Properties of point symmetry figures

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 of the product

5.
rectangular solid

① Rectangular solid
② Cube
③ Properties of a rectangular solid
④ Aiming diagram of a rectangular solid
⑤ Development of a rectangular solid
⑥ Drawing the development diagram of a rectangular solid

6.
Average and probability

① Average
② Finding the average
③ Solving problems using averages
④ Expressing the possibility of something happening in words
⑤ Compare the likelihood of an event occurring
⑥ Expressing the probability of an event occurring in numbers

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A system to master the types of questions by reviewing the problems in the [Concept Book] in the [Review Book].

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·『Concept + Type Light』 is composed of '30% lower, 50% middle, and 20% upper problems' and is good for completing the basics.