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Indian Number System — Flashcards

ICSE · Class 5 · Mathematics

25 flashcards for Indian Number System (ICSE Class 5 Mathematics) to test yourself on key terms and facts. Sample: "Write the number name for 4,56,78,901."

39 questions25 flashcards6 formulas & key relations5 concepts

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25 Flashcards·
Number NamesWriting NumeralsSuccessor and PredecessorComparison of Numbers
Card 1Number Names

Write the number name for 4,56,78,901.

Answer

Step 1: Identify periods — Crores, Lakhs, Thousands, Units. Step 2: Read each period: - 4 → Four crore - 56 → Fifty-six lakh - 78 → Seventy-eight thousand - 901 → Nine hundred one Answer: Four crore f…

Card 2Number Names

Write the number name for 7,03,05,020.

Answer

Step 1: Break into periods — 7 (crore), 03 (lakh), 05 (thousand), 020 (units). Step 2: Read each: - 7 → Seven crore - 03 → Three lakh - 05 → Five thousand - 020 → Twenty Answer: Seven crore three lakh…

Card 3Writing Numerals

Write the numeral for: Nine crore thirty-five lakh sixty-two thousand four hundred fifteen.

Answer

Step 1: Write each period: - Crore: 9 - Lakh: 35 - Thousand: 62 - Units: 415 Step 2: Combine with commas: 9,35,62,415. Answer: 9,35,62,415.

Card 4Writing Numerals

Write the numeral for: Twelve crore eight lakh fifty thousand ninety.

Answer

Step 1: Break into parts: - Twelve crore → 12,00,00,000 - Eight lakh → 8,00,000 - Fifty thousand → 50,000 - Ninety → 90 Step 2: Add them: 12,00,00,000 + 8,00,000 = 12,08,00,000 + 50,000 = 12,08,50,000…

Card 5Successor and Predecessor

What is the successor of 6,78,99,999?

Answer

Step 1: Successor means add 1. 6,78,99,999 + 1 = 6,79,00,000 Answer: 6,79,00,000 (Six crore seventy-nine lakh).

Card 6Successor and Predecessor

What is the predecessor of 5,00,00,000?

Answer

Step 1: Predecessor means subtract 1. 5,00,00,000 - 1 = 4,99,99,999 Answer: 4,99,99,999 (Four crore ninety-nine lakh ninety-nine thousand nine hundred ninety-nine).

Card 7Comparison of Numbers

Compare: 3,45,67,890 and 34,56,789. Which is greater?

Answer

Step 1: Count digits. - 3,45,67,890 → 8 digits - 34,56,789 → 7 digits Rule: More digits = greater number. Answer: 3,45,67,890 > 34,56,789.

Card 8Comparison of Numbers

Compare: 7,89,45,600 and 7,89,54,600. Which is greater?

Answer

Step 1: Both have 8 digits. Step 2: Compare from left: - Crores: 7 = 7 - Ten Lakhs: 8 = 8 - Lakhs: 9 = 9 - Ten Thousands: 4 vs 5 → 4 < 5 So, 7,89,45,600 < 7,89,54,600 Answer: 7,89,54,600 is greater.

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Frequently Asked Questions

What are the important topics in Indian Number System for ICSE Class 5 Mathematics?
Key topics in Indian Number System include Understanding Large Numbers, Place Value and Expanded Form, Successor and Predecessor, Comparing and Ordering Numbers. Study these first, then practise questions on each for Class 5 exams.
How many flashcards are available for Indian Number System?
There are 25 flashcards for Indian Number System covering key definitions, facts and ideas. A few sample cards are shown on this page.
How should I revise Indian Number System for Class 5 exams?
Learn the core ideas first, then work through the 39 practice questions on Indian 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.

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