Double Century
CBSE · Class 3 · Mathematics
Summary of Double Century for CBSE Class 3 Mathematics. Key concepts, important points, and chapter overview.
Overview
This chapter takes us on an exciting journey to explore numbers beyond 100, reaching up to 200. We learn about the amazing story of how our number system was invented by ancient Indians thousands of years ago. The chapter helps us understand how to read, write, and work with larger numbers using the
Key Concepts
Thousands of years ago
Thousands of years ago, ancient Indians created a brilliant system to write any number using only ten symbols: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. The most
The number 100 can be made
The number 100 can be made by adding two numbers in many different ways. For example: 70 + 30 = 100, 45 + 55 = 100, 60 + 40 = 100, and so on. Any two
After 100
After 100, we continue counting: 101 (one hundred one), 102 (one hundred two), and so on. The pattern is: 100 + any number from 1 to 99. For example,
In three
In three-digit numbers, we have three places: hundreds, tens, and ones. For example, in 157: 1 is in hundreds place (100), 5 is in tens place (50), an
We can show numbers using matchstick
We can show numbers using matchstick bundles (hundreds), loose bundles of 10 (tens), and individual sticks (ones). This helps visualize what numbers a
Learning Objectives
- Understand the history and importance of our number system invented by ancient Indians
- Learn to count and write numbers from 100 to 200
- Practice making the number 100 in different ways using addition
- Represent numbers using concrete materials like matchstick bundles
- Develop estimation skills with larger quantities
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What are the important topics in Double Century for CBSE Class 3 Mathematics?
Double Century covers several key topics that are frequently asked in CBSE Class 3 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Double Century — CBSE Class 3 Mathematics?
Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.
Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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