NCERT Solutions for Class 8 Maths Chapter 5 Number Play - Exercise 5.2

Mastering the shortcuts to identify factors is simple with our NCERT Solutions for Class 8 Maths Ch 5: Playing with Numbers – Exercise 5.2. This exercise focuses on the "Divisibility Rules" for 3 and 9. By using the generalized form of numbers, you will learn why adding digits tells us if a number is divisible by these specific values.

Class 8 Math Lessons (Ch 5): Learn to Solve Divisibility Puzzles with Ease! The solutions to Exercise 5.2 will be presented in a step-by-step approach to help students find missing digits in large numbers. These solutions are in accordance with the CBSE Guidelines to provide the best path for improving speed in mental calculations. Additionally, these solutions build the foundation for simplifying fractions and finding prime factors efficiently.

1.0Download Class 8 Maths Chapter 5 Number Play Ex 5.2 NCERT Solutions PDF

Our easy-to-follow NCERT Solutions for Class 8 Maths Chapter 5 Exercise 5.2 are available for download as a PDF. Perfect for offline study and quick reference.

2.0Key Concepts of Chapter 5 Number Play Exercise 5.2

• Divisibility by 9: A number is divisible by 9 if the sum of its digits is divisible by 9.
• Divisibility by 3: A number is divisible by 3 if the sum of its digits is divisible by 3.
• Generalized Form Proof: Understanding that abc = 100a + 10b + c = 99a + 9b + (a + b + c), which proves why the sum of digits matters.
• Finding Missing Digits: Solving for an unknown digit x or y when the number is already known to be a multiple of 3 or 9.

3.0NCERT Solutions for Class 8 Maths Chapter 5 Number Play : All Exercises

4.0Benefits of NCERT Solutions for Class 8 Maths Chapter 5 Exercise 5.2

• Conceptual Clarity: Explains the logic behind divisibility rules rather than just memorizing them.
• Problem-Solving Skills: Teaches how to set up simple algebraic equations to find unknown digits.
• Accuracy: Helps students identify all possible values for a variable, ensuring they don't lose marks for incomplete answers.