Skip to main content
Super TutorResources
Chapter 3 of 22
Revision Notes

International Number System — Revision Notes

ICSE · Class 5 · Mathematics

International Number System revision notes for ICSE Class 5 Mathematics: 3 topics in quick points. Part of the ICSE Class 5 Mathematics syllabus.

41 questions25 flashcards8 formulas & key relations3 concepts

Interactive on Super Tutor

Studying International Number System? Get the full interactive chapter.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for revision notes and more.

Try Super Tutor — Free

Free trial, no card needed.

Key Topics to Revise

1

Understanding the International Number System

  • The International Number System groups digits into periods of three: Ones, Thousands, Millions, and so on.
  • Each period has three places: Hundreds, Tens, and Ones.
  • Commas are used to separate periods: e.g., 1,000,000 (One million).
2

Place Value Chart - International System

  • The place values from right to left are: Ones, Tens, Hundreds, Thousands, Ten Thousands, Hundred Thousands, Millions, Ten Millions, Hundred Millions.
  • Each group of three digits forms a period: Ones, Thousands, Millions.
  • The digit's value depends on its position in the number.
3

Converting Between Indian and International Systems

  • 1 Lakh = 100,000 = One Hundred Thousand
  • 10 Lakh = 1,000,000 = 1 Million
  • 1 Crore = 10,000,000 = 10 Million

Get complete notes with diagrams and examples

Full Notes

Key Concepts

The International Number System groups digitsIn the International systemIn the Indian system

Frequently Asked Questions

What are the important topics in International Number System for ICSE Class 5 Mathematics?
Key topics in International Number System include Understanding the International Number System, Place Value Chart - International System, Converting Between Indian and International Systems. Study these first, then practise questions on each for Class 5 exams.
How should I revise International Number System for Class 5 exams?
Learn the core ideas first, then work through the 41 practice questions on International Number System. Revise 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.

More resources for International Number System

All ICSE Class 5 Mathematics Revision Notes

For serious students

Get the full International Number System chapter — start free.

Quizzes, flashcards, an AI doubt solver and a study plan for ICSE Class 5 Mathematics. Free to start, no card needed.

Try Super Tutor Free
Try this chapter free