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Concept Maps

International Number System — Concept Maps

ICSE · Class 5 · Mathematics

4 concept maps of International Number System for ICSE Class 5 Mathematics, each also written out as a text outline.

41 questions25 flashcards8 formulas & key relations3 concepts

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4 Concept Maps

International Number System – Chapter Overview

International Number System – Chapter Overview

The map in words

  • root((International
  • Number System))
    • Indian vs International
      • Indian Uses Lakhs and Crores
      • International Uses Millions and Billions
      • Indian Periods Have 2 Digits
      • International Periods Have 3 Digits
    • Key Conversions
      • 10 Lakh = 1 Million
      • 1 Crore = 10 Million
      • 10 Crore = 100 Million
      • 100 Crore = 1 Billion
      • 1 Billion = 1000 Million
    • Place Value Periods
      • Ones Period
        • Ones
        • Tens
        • Hundreds
      • Thousands Period
        • One Thousand
        • Ten Thousand
        • Hundred Thousand
      • Millions Period
        • One Million
        • Ten Million
        • Hundred Million
    • Reading Numbers
      • Group Digits in 3s from Right
      • Read Millions Group First
      • Then Thousands Group
      • Then Ones Group
    • Writing Numerals
      • Use Place Value Chart
      • Fill Zeros for Empty Places
      • Place Commas After Every 3 Digits

International Number System - Complete Overview

International Number System - Complete Overview

The map in words

  • International Number System
    • Periods
      • Ones Period
        • Ones
        • Tens
        • Hundreds
      • Thousands Period
        • One Thousand
        • Ten Thousand
        • Hundred Thousand
      • Millions Period
        • One Million
        • Ten Million
        • Hundred Million
      • Billions Period
        • One Billion
    • Key Conversions
      • 1 Million equals 10 Lakh
      • 1 Crore equals 10 Million
      • 1 Billion equals 100 Crore
    • Comma Rules
      • Every 3 digits from right
      • All periods have 3 digits
    • Reading Numbers
      • Period by Period
      • Left to Right
      • Add Period Name

Flowchart showing how the same number is written and named differently in Indian vs International systems

Flowchart showing how the same number is written and named differently in Indian vs International systems

The map in words

  • Same Number Different Writing
    • Indian System 1,00,000
      • Called: 1 Lakh
        • Period Groups: 3,2,2,2,2...
    • International System 100,000
      • Called: 100 Thousand
        • Period Groups: 3,3,3,3,3...

International Number System

International Number System

The map in words

  • International Number System
    • Place Value
    • Periods in Number System
    • Number Names
    • Comparison with Indian Number System
    • Writing Large Numbers
    • Numerals and Number Names

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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.
What do the concept maps for International Number System show?
The 4 maps show how the ideas in International Number System connect: International Number System – Chapter Overview; International Number System - Complete Overview. Each map is also written out as an outline on this page.
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 Concept Maps

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