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Chapter 1 of 15
Study Plan

Large Numbers Around Us

CBSE · Class 7 · Mathematics

Step-by-step guide to study Large Numbers Around Us in CBSE Class 7 Mathematics. Topics to cover, practice strategy, and time allocation.

37 questions60 flashcards5 concepts

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Study Plan

1
Day 1–2

Learn the Theory

Read the textbook chapter carefully. Note down definitions, formulas, and key concepts.

2
Day 3

Practice Problems

Solve textbook exercises and additional practice questions. There are 37 questions available for this chapter.

3
Day 4

Revise & Test

Revise key formulas and concepts without looking at notes. Take a practice quiz to test your understanding. Mark weak areas for re-revision.

4
Day 7

Spaced Revision

Revisit Large Numbers Around Us after a week. Use flashcards for quick recall. Solve previous year questions from this chapter.

What to Focus On

  • 1 lakh = 1 followed by 5 zeroes = 1,00,000
  • The Indian number system uses commas in groups from right to left: 3 digits, then 2 digits, then 2 digits
  • Large numbers can be compared with familiar quantities to understand their size

  • A number can seem big in one context and small in another
  • Most humans have 80,000 to about a lakh hairs on their heads
  • The Ahmedabad cricket stadium has a seating capacity of more than 1 lakh

  • 12,78,830 is read as twelve lakh seventy eight thousand eight hundred thirty
  • 15,75,000 is read as fifteen lakh seventy five thousand
  • 1 crore = 100 lakhs

Common Mistakes to Avoid

1 lakh and 1 million are the same in every way, including comma placement and number name.

A lakh is a thousand times a thousand, so it must be 1,000,000.

A crore is 1,00,000 because it sounds close to lakh.

Memory Tips

1 lakh

1 crore

1 million equals ten lakhs

1 arab equals 100 crore or 1 billion

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Frequently Asked Questions

What are the important topics in Large Numbers Around Us for CBSE Class 7 Mathematics?
Large Numbers Around Us covers several key topics that are frequently asked in CBSE Class 7 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Large Numbers Around Us — CBSE Class 7 Mathematics?
Understand the core concepts first, then work through the 37 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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Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for CBSE Class 7 Mathematics.