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Concept + Type Basic Light Elementary Mathematics 4-1 (2026)
Concept + Type Basic Light Elementary Mathematics 4-1 (2026)
Description
Book Introduction
『Concept + Type』 is a specialized elementary, middle, and high school mathematics textbook that covers concepts and types at once.
You can perfect your basic skills with the 『Basic Light』 type review system (1:1 review of the problems in the [Concept Book] in the [Review Book]).
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index
1.
large number


① Only
② Five-digit number
③ Hundred thousand, one million, ten million
④ billion
⑤ Group
⑥ Jump and count
⑦ Comparison of numbers

2.
angle


① Comparison of angle sizes
② Measuring the size of each angle
③ Acute angle, obtuse angle
④ Estimating the angle
⑤ Sum and difference of angles
⑥ The sum of the three angles of a triangle
⑦ The sum of the four angles of a square

3.
Multiplication and division


① (three-digit number) × (tens)
② (three-digit number) × (tens or so)
③ (three-digit number)÷(tens)
④ (two-digit number)÷(tens or tens)
⑤ (three-digit number) with a single-digit quotient ÷ (tens or so)
⑥ (three-digit number) with a two-digit quotient ÷ (tens or so)

4.
Movement of plane figures


① Movement of points
② Pushing the plane figure
③ Flipping a plane figure
④ Rotating a plane figure

5.
bar graph


① Bar graph
② Display as a bar graph
③ Interpreting bar graphs
④ Collect data and display it in a bar graph

6.
Find the rules


① Finding patterns in the array of numbers
② Find the pattern in the arrangement of shapes and express it as a number.
③ Find the rule in the arrangement of shapes and express it as a formula.
④ Expressing it as an equation using an equal sign
⑤ Finding rules in the arrangement of addition and subtraction expressions
⑥ Finding patterns in the arrangement of multiplication and division expressions

Detailed image
Detailed Image 1

Publisher's Review
"Complete your basic skills with the Type Review System! Light"

What is the 'Type Review System'?
A system to master the types of questions by reviewing the problems in the [Concept Book] in the [Review Book].
[Concept Book] Detailed and reliable concept learning and problem-solving skills
[Review Book] Includes basic skills problems, [Concept Book] 1:1 review of problems
[Assessment Book] Includes unit assessments, descriptive assessments, and academic achievement assessments appropriate for the light level.

·『Concept + Type Light』is a textbook with a type review system that will help you solidify your math skills.

·『Concept + Type Light』 is composed of '30% lower, 50% middle, and 20% upper problems' and is good for completing the basics.
GOODS SPECIFICS
- Date of issue: June 1, 2025
- Page count, weight, size: 392 pages | 220*300*30mm
- ISBN13: 9791173165368
- ISBN10: 1173165363
- Reference book for use in grades: 4th grade elementary school
- Reference book usage period: 1st semester
- KC Certification: Certification Type: Conformity Confirmation

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