Quick multiplication and division for busy elementary school students

Diagnosis and evaluation of multiples

First yard.
Divisors and multiples
01 If you divide it, it becomes a factor
02 The two numbers multiplied are the divisors of the product.
03 You can find the number of divisors
04 How many times is a multiple?
Let's find multiples within the range 05
06 Divisors and multiples are closely related.
Challenge 07: Find the Rule of Multiplication

Second yard.
Greatest common divisor and least common multiple
08 Common divisors are common factors
09 Common multiples are common multiples
Find the greatest common divisor and least common multiple by multiplying by 10.
11 Find the greatest common divisor and least common multiple by division
12 The greatest common divisor is a factor of the greatest common divisor.
13. Common multiples are multiples of the least common multiple.
Challenge 14: Using the Greatest Common Divisor and Least Common Multiple

Third yard.
Reduce and common fractions
15 There are countless fractions of the same size.
16 Create fractions of the same size by multiplying and dividing
17 If you simplify it, it becomes a simple fraction.
18 If you divide by 18, the denominators become the same.
19 You can compare the sizes of the fountains
Challenge 20! The method for comparing the sizes of three fractions is the same.

Correct answer

Quick Factors and Multiplications for Busy Elementary School Students

The Beginning of Upper Grade Math
Make 'divisors and multiples' solid!
The secret to finishing elementary school math smartly and doing well in middle school math!

■ 5th grade math creates dropouts. Why?
70% of elementary school math problems involve fractions with different denominators.
In order to do well in 'Calculating Fractions with Different Denominators', which is learned from 5th grade, you must not only have a good understanding of the concept of 'factors and multiples', but also have sufficient arithmetic practice and be able to solve problems using them with ease. However, in basic textbooks, application and advanced problems are given right after learning the concept, so children have a hard time with 'Greatest Common Divisor and Least Common Multiple' using 'factors and multiples', and later 'Reduction and Common Denominator' and 'Calculating Fractions with Different Denominators' are also difficult, so they start to give up on math and start to take the path of 'math dropouts'.

■ A shortcut to studying advanced math smartly: factors and multiples!
This book is organized step by step, from ‘Divisors and Multiples’ to ‘Greatest Common Divisor and Least Common Multiple’ and ‘Reduction and Common Derivatives’.
Before solving a problem, you can easily understand the concept with friendly explanations, and with sufficient computational training, you can challenge yourself with gradually increasing difficulty.
Students especially find the greatest common divisor and least common multiple the most difficult, but they can prepare for school exams by covering word problems and usage problems that are sure to appear on exams step by step.
Learn the basic concepts of factors and multiples, as well as word problems and usage problems, with this one book, 'Quick Factors and Multiples for Busy Elementary School Students.'

■ The first secret to excelling in middle school math: factors and multiples.
The first unit studied in middle school, 'Prime Factorization', is directly related to 'Divisors and Multiples, Greatest Common Divisor, and Least Common Multiple', which are learned in the 5th grade of elementary school.
In addition, the second unit, 'Integers and Rational Numbers,' which we will learn next, also includes the concepts of 'reduction and common denominator' based on 'divisors and multiples.' Therefore, it is more important to understand this part than to study it beforehand, and to move on from it in the upper grades of elementary school.
If you have a solid grasp of the 'factors and multiples' unit in elementary school, middle school math will inevitably become easier, right?

■ An efficient learning method that builds real skills through flexible training!
"Quick Factors and Multiples for Busy Elementary School Students" is a short, flexible training program designed to help students master "factors and multiples" beyond simply learning how to solve them. It offers a more efficient learning method that builds real skills while investing the same amount of time. The program quickly identifies and moves on to stages where simple practice is sufficient, while expanding upon stages that require more study to ensure sufficient training.
Additionally, it is structured so that you can study intensively in a short period of time by solving 2-3 levels per day within 10-20 days.
If you focus on your studies, you'll be able to easily understand the overall context, which will reduce the time it takes to complete a book, and your skills will gradually improve.
If you focus on practicing the 'Divisors and Multiples' section of this book, you will be able to finish elementary school math wisely and become good at middle school math.

■ Features of this book

1) Just 10 days to shape your math life! Customized learning is available at home after a diagnostic assessment!
We applied the actual diagnostic assessment methods of math academy directors to accurately diagnose your child's current learning status and create a customized learning plan even at home.
You can choose to study using either the 10-day progress chart or the 20-day progress chart based on the results of the '10-minute diagnostic assessment' included in this book.
If you want a quicker diagnosis, you can also check the progress chart that is right for you with the '5-minute diagnostic assessment'.

If you are a 6th grader, even if a 20-day progress chart is provided, we recommend that you focus on completing the calculations by challenging yourself with a 10-day progress chart.
Just 10 days to address your learning deficits will be a crucial turning point that will determine your future math career.


2) Don't solve it unconditionally! Look at the concept and 'get the feeling~'
If you solve problems without properly understanding the concepts, you may hit a wall at some point.
Just as you need to consume a balanced diet to build basic physical strength, you need to learn concepts and principles during the training process to build a healthy foundation.

Unlike training books that only contain calculations, Busy Operation Method includes 'concepts at a glance' for each lesson.
It is helpful for friends who are learning on their own, as it allows them to understand the principles and practice calculations through friendly concept explanations that can be understood just by looking at the title.

3) The teacher in the book! Solve the puzzle with the teacher using Padok's 'Honey Tips' and 'Wait! Quiz'!
No more mechanical, uninspired problem-solving! From useful tips to error-reducing tricks, this book offers easy-to-understand and easy-to-follow instructions.
After learning a concept, you can review it again with a "Quiz" so you can enjoy the benefits of studying with a friendly teacher even if you solve it on your own.

4) Scientific learning design! Baboo's "small steps" method builds skills!
No more mechanical, repetitive calculations! We've structured it so you can quickly learn the easy parts and practice more on the more challenging ones.
The more flexible structure allows you to learn more efficiently with the same investment of time, with stages that require simple practice expanded to 3 pages and stages that require more practice expanded to 4 or 5 pages.
Additionally, the level of immersion has been further increased by designing the stages meticulously and scientifically using the 'small step' method of Busy, which gradually increases the level and challenges.
It doesn't suddenly become difficult, so anyone can immerse themselves in it until the end and build their skills.

5) By understanding it in everyday language and reconfirming the concept through games, you will naturally gain confidence!
It doesn't end with just practicing simple calculation problems.
You can prepare for descriptive problems that you will definitely encounter in school, and also develop your thinking skills with fun arithmetic playground problems that are like games.
This book is not just about calculations, but it is more than just a book about calculations, and it helps you develop the problem-solving and creative convergence skills required by the current curriculum!