NCERT Class 6 Maths · Chapter 1

NCERT Solutions Class 6 Maths Chapter 1Knowing Our Numbers

Step-by-step solutions for all exercises in NCERT Class 6 Maths Knowing Our Numbers.

Chapter Overview

Compare and order large numbers, use Indian and International place-value systems, and estimate with rounding.

This chapter is part of the NCERT Mathematics textbook for Class 6 and is important for CBSE school examinations. The concepts covered here build the foundation for more advanced topics in higher classes.

Below you will find solved examples from this chapter. Each solution includes detailed step-by-step working so you can understand the method, not just the answer.

Solved Examples from Knowing Our Numbers

1What is the place value of 6 in 63,412?

A.6
B.60,000
C.6,000
D.600

Answer: 60,000

Solution:

Step 1: Identify the position of 6 in 63,412.

Step 2: 6 is in the ten-thousands place. [Place value = 6 × 10,000 = 60,000]

2Which of the following is the smallest 5-digit number?

A.99,999
B.10,001
C.10,000
D.9,999

Answer: 10,000

Solution:

Step 1: A 5-digit number has digits in positions from ten-thousands to ones.

Step 2: The smallest such number is: [10,000]

3Write the number 23,456 in words.

A.Two thousand three hundred forty-six
B.Twenty-three thousand four hundred fifty-six
C.Two lakh thirty-four thousand fifty-six
D.Twenty-three thousand four hundred six

Answer: Twenty-three thousand four hundred fifty-six

Solution:

Step 1: 23,456 = 23 thousand + 4 hundred + 56

Step 2: In words: Twenty-three thousand four hundred fifty-six.

4What is the face value of 7 in 47,832?

A.7,000
B.7
C.70
D.700

Answer: 7

Solution:

Step 1: Face value of any digit is the digit itself.

Step 2: Face value of 7 in 47,832 = 7.

5Arrange in ascending order: 3,542; 3,245; 3,425; 3,524.

A.3,245 < 3,425 < 3,524 < 3,542
B.3,542 < 3,524 < 3,425 < 3,245
C.3,245 < 3,425 < 3,542 < 3,524
D.3,425 < 3,245 < 3,524 < 3,542

Answer: 3,245 < 3,425 < 3,524 < 3,542

Solution:

Step 1: All numbers have 3 in the thousands place. Compare hundreds digits: 2, 4, 5, 5.

Step 2: For the two with 5 in hundreds: compare tens: 2 < 4.

Step 3: Order: 3,245 < 3,425 < 3,524 < 3,542.

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Frequently Asked Questions

Where can I find NCERT Solutions for Class 6 Maths Chapter 1?+
You can find complete NCERT Solutions for Class 6 Maths Chapter 1 (Knowing Our Numbers) on this page with step-by-step explanations for all exercises.
Are these NCERT Solutions for Class 6 Knowing Our Numbers updated for 2025-26?+
Yes, these solutions follow the latest NCERT textbook for the 2025-26 academic session and cover all exercise questions.
How to score full marks in Class 6 Knowing Our Numbers?+
Practice all NCERT exercise questions, understand the concepts behind each formula, and solve additional problems on SparkEd's interactive platform for thorough preparation.
Is Knowing Our Numbers important for Class 6 exams?+
Yes, Knowing Our Numbers is an important chapter in Class 6 CBSE Maths. Questions from this chapter regularly appear in school exams and board assessments.
Can I practice more questions on Knowing Our Numbers?+
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