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How to Use This Book
1 Number Arrangement Puzzles Basic Concepts
Basic Concepts How Many Numbers Are there Between Two Numbers? Creative math begins right here!
At the beginning of each lesson, Basic
Six number cards are arranged as follows: Concepts presents various examples and
One number card is placed between the 1’s, two number cards are placed figures to help you grasp the main idea of
between the 2’s, and three number cards are placed between the 3’s. the day’s lesson. Work on example
problems based on the basic concepts.
231213 Read the Class Notes that will guide you
through the problems step by step.
In a puzzle like this, the greater the number, the fewer possible ways you
can arrange the numbers. Therefore, you should start with the greater
numbers.
Placing 1’s Placing 2’s Placing 3’s
Four possible ways Three possible ways Two possible ways
11 22 33
11 22 33
11 22
11
Example Two 1’s, 2’s, 3’s, and 4’s are given. Try to arrange the eight
numbers with the rules given above.
or
Type 1-1 Number Puzzles Types
The numbers in the are the sums of the numbers in the that are This is where the main type of question for
connected to the by lines. Find the numbers in A~H. (Numbers in each topic is introduced. Follow the steps to
the are natural numbers from 1 to 9, and can be used more than find the solution to each problem.
once.)
A B 12 C
D 18 E 15
11 F 17 G
4 7H6
1 Look at the diagram on the right. If 4 F H 7 , F
what are the numbers in F and H? 4 7H
1 Number Arrangement Puzzles Basic Concepts
Basic Concepts How Many Numbers Are there Between Two Numbers? Creative math begins right here!
At the beginning of each lesson, Basic
Six number cards are arranged as follows: Concepts presents various examples and
One number card is placed between the 1’s, two number cards are placed figures to help you grasp the main idea of
between the 2’s, and three number cards are placed between the 3’s. the day’s lesson. Work on example
problems based on the basic concepts.
231213 Read the Class Notes that will guide you
through the problems step by step.
In a puzzle like this, the greater the number, the fewer possible ways you
can arrange the numbers. Therefore, you should start with the greater
numbers.
Placing 1’s Placing 2’s Placing 3’s
Four possible ways Three possible ways Two possible ways
11 22 33
11 22 33
11 22
11
Example Two 1’s, 2’s, 3’s, and 4’s are given. Try to arrange the eight
numbers with the rules given above.
or
Type 1-1 Number Puzzles Types
The numbers in the are the sums of the numbers in the that are This is where the main type of question for
connected to the by lines. Find the numbers in A~H. (Numbers in each topic is introduced. Follow the steps to
the are natural numbers from 1 to 9, and can be used more than find the solution to each problem.
once.)
A B 12 C
D 18 E 15
11 F 17 G
4 7H6
1 Look at the diagram on the right. If 4 F H 7 , F
what are the numbers in F and H? 4 7H
