## Class 6 Maths NCERT Solutions for Chapter 3 Exercise 3.8 FREE PDF Download

## FAQs on NCERT Solutions for Class 6 Maths Chapter 3 Exercise 3.8 Number Play

1. What is the importance of Mental Math as introduced in Chapter 3: Number Play?

Mental Math improves calculation speed, sharpens problem-solving skills, and helps perform quick arithmetic operations without using pen and paper.

2. How does Chapter 3: Number Play help in understanding prime and composite numbers?

The chapter explains how prime numbers have only two factors (1 and the number itself), while composite numbers have more than two factors.

3. What are co-prime numbers as explained in NCERT Solutions for Chapter 3: Number Play?

Co-prime numbers are two numbers that share only 1 as a common factor. For example, 9 and 28 are co-prime.

4. What is the role of divisibility rules in Mental Math as per Chapter 3: Number Play?

Divisibility rules help quickly determine whether a number can be divided by another number without remainder, making calculations faster.

5. How does Exercise 3.8 help students in developing problem-solving skills?

Exercise 3.8 uses mental math techniques that challenge students to solve problems quickly, enhancing their arithmetic and reasoning skills.

6. What is the difference between factors and multiples as explained in Chapter 3: Number Play?

A factor is a number that divides another number exactly, while a multiple is the result of multiplying a number by an integer.

7. How can understanding number patterns be beneficial in Mental Math?

Recognizing number patterns helps in predicting future numbers and solving sequences, which enhances problem-solving efficiency.

8. What are perfect numbers according to Chapter 3: Number Play?

A perfect number is a number that equals the sum of its proper divisors. For example, 6 is a perfect number because 1 + 2 + 3 = 6.

9. What is the significance of the Greatest Common Divisor (GCD) in Mental Math?

GCD helps find the largest number that divides two or more numbers exactly, which is useful for simplifying fractions and solving problems quickly.

10. How does mastering Exercise 3.8 contribute to overall mathematical fluency?

It enhances the ability to perform calculations in the mind, improves logical thinking, and prepares students for more complex mathematical concepts.