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Revision Notes

House of Hundreds - I

CBSE · Class 3 · Mathematics

Quick revision notes for House of Hundreds - I — CBSE Class 3 Mathematics. Key concepts, formulas, and definitions for last-minute revision.

40 questions60 flashcards5 concepts

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Key Topics to Revise

1

Counting Beyond 200

  • Triangular torans are counted as 250, which is 50 more than 200.
  • Bangles are counted as 280, which is 200 and 80 more.
  • Counting bangles is shown by counting in tens first, then counting carefully near 270 to 280.
2

Number Sentences and Number Line

  • 235 can be written as 200 + 35.
  • 235 can also be written as 250 - 15.
  • 211 can be written as 200 + 10 + 1.
3

Comparing Numbers

  • 487 laddoos is more than 423 laddoos.
  • 423 laddoos is less than 487 laddoos.
  • Open mouth points towards the bigger number.
4

House Numbers and Place Value

  • House number 13 is on Floor 1st and Column 3.
  • House number 399 needs floor and column identification.
  • House numbers in the building change by moving up and down, and left to right.

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Full Notes

Key Concepts

Large groups are counted by usingA threeSome numbers can be writtenA number line shows whereWhen comparing 321 and 231

Frequently Asked Questions

What are the important topics in House of Hundreds - I for CBSE Class 3 Mathematics?
House of Hundreds - I 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 House of Hundreds - I — CBSE Class 3 Mathematics?
Understand the core concepts first, then work through the 40 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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