CBSE Class 6 Maths Notes Chapter 3 Numbers Play, Download PDF
Neha Tanna11 Mar, 2026
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CBSE Class 6 Maths Notes Chapter 3 helps students understand numbers beyond simple counting. This chapter, titled Number Play, introduces patterns, sequences, and special puzzles in mathematics. By learning these concepts, students develop logical thinking and problem-solving skills. These notes make math interesting and easy to follow.
CBSE Class 6 Maths Notes Chapter 3 PDF
Below we have provided CBSE Class 6 Maths Notes Chapter 3 Numbers Play pdf for the ease of the students so that they can download it and access it without internet.
CBSE Class 6 Maths Notes Chapter 3 PDF
What is Number Play?
In CBSE Class 6 Maths Notes Chapter 3, numbers are not just for calculations. They follow certain rules and patterns. The chapter helps students see how numbers interact. The Number Play Class 6 Notes cover basic ideas such as even and odd numbers, magic squares, historical number sequences, and alphametic puzzles.
Even and Odd Numbers
Numbers can be classified as even or odd. This classification is important in CBSE Class 6 Maths Notes Chapter 3.
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Even Numbers: Numbers that can be divided into pairs with no leftover. Examples are 2, 4, 6, 8, and 10. The formula 2n2n2n gives the nthn^{th}nth even number.
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Odd Numbers: Numbers that leave one unpaired object when grouped in twos. Examples are 1, 3, 5, 7, and 9. The formula 2n−12n-12n−1 gives the nthn^{th}nth odd number.
Rules for Adding Numbers:
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Even + Even = Even
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Odd + Odd = Even
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Even + Odd = Odd
These rules are part of the Number Play class 6 Maths Notes and help students solve problems easily.
Magic Squares
A magic square is a grid of numbers where the sum of numbers in each row, each column, and both main diagonals is the same. This consistent sum is known as the magic constant or magic sum.
For an n x n magic square, the magic constant can be found using the formula: 
Here is an example of a 3 x 3 magic square using numbers 1 to 9, where the magic sum is 15:
| 6 | 1 | 8 |
|---|---|---|
| 7 | 5 | 3 |
| 2 | 9 | 4 |
In this square, each row, column, and main diagonal adds up to 15.
The Virahanka-Fibonacci Numbers
The Virahanka-Fibonacci sequence is a series where each number is the sum of the two previous numbers. An example sequence is: 1, 2, 3, 5, 8, 13, 21, 34…
The history of this sequence includes:
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Pingala (c. 300 BCE) – earliest reference
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Virahanka (c. 700 CE) – rule explicitly stated
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Gopala (c. 1135 CE) – continued the study
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Hemachandra (c. 1150 CE) – further development
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Fibonacci (1202 CE) – introduced sequence to Europe
Learning this sequence helps students identify number patterns and is covered in CBSE Class 6 Maths Notes Chapter 3.
Alphametics: Letters for Digits
Alphametics are puzzles where letters represent digits. Each letter stands for a unique number from 0 to 9. Students must replace letters with digits to make equations correct.
Rules for Alphametics:
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Each letter represents one digit.
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The same letters have the same value everywhere.
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Different letters have different digits.
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A number cannot start with zero.
These puzzles are part of cbse class 6 Number Play notes. They improve logical thinking and problem-solving skills.
CBSE Class 6 Maths Notes Chapter 3 provides a foundation for understanding number patterns, sequences, and puzzles. From even and odd numbers to magic squares, Fibonacci numbers, and alphametics, this chapter helps students build logical thinking. Studying these Number Play notes enhances problem-solving skills and makes mathematics enjoyable.
By going through Number Play Class 6 Notes, students can strengthen their basics and enjoy exploring numbers in new ways. This chapter is an essential part of the Number Play class 6 Maths Notes.