Introduction
Begin your journey with numbers by understanding what you already know and what you'll learn in this chapter.
Number Sense
Review
About This Chapter
Numbers are the foundation of mathematics. In this chapter, you will learn to work with large numbers up to crores, understand place value deeply, and master both Indian and International number systems.
Through engaging examples and practice problems, you'll develop the skills to compare, order, and estimate large numbers with confidence.
Start Learning →📚 What You'll Learn
- Compare and order large numbers
- Understand place value up to crores
- Read and write numbers in Indian system (lakhs, crores)
- Read and write numbers in International system (millions, billions)
- Estimate and round off large numbers
Chapter Sections
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1
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2
Comparing Numbers
Learn strategies to compare numbers of different sizes and determine which is greater or smaller.
Number Comparison Ordering Numbers Greater Than Less Than -
3
Shifting Digits
Explore what happens when digits are interchanged or shifted in a number.
Digit Patterns Number Formation -
4
Introducing 10,000
Understand five-digit numbers and the concept of ten thousand.
Five-Digit Numbers Ten Thousand -
5
Revisiting Place Value
Deep dive into place value concepts for larger numbers.
Place Value Face Value Expanded Form -
6
Introducing 1,00,000
Learn about six-digit numbers and the concept of one lakh.
Six-Digit Numbers One Lakh -
7
Larger Numbers
Explore numbers in lakhs and crores - the largest numbers in the Indian system.
Lakhs Crores Indian System -
8
An Aid in Reading and Writing Large Numbers
Learn techniques to read and write large numbers using commas and periods in both Indian and International systems.
Indian System International System Using Commas -
9
Large Numbers in Practice
Apply your knowledge of large numbers to real-world situations and problems.
Real-World Applications Word Problems Estimation -
10
Exercise 1.1
Practice problems on comparing numbers and place value.
Practice Problems NCERT Solutions -
11
Exercise 1.2
Practice problems on large numbers and number systems.
Practice Problems NCERT Solutions -
12
What Have We Discussed?
A comprehensive summary of all key concepts learned in this chapter.
Chapter Summary Key Points -
13
Enhanced Curriculum Support
Additional resources including sample papers, HOTS questions, and NCERT Exemplar solutions.
Sample Papers HOTS NCERT Exemplar