Indian System of Numbers


Knowing Our Numbers I - Concepts
Class - 6th Foundation NTSE Subjects
 
 
Concept Explanation
 

Indian System of Numbers

Indian System of Numbers:

The Indian numbering system is used in the Indian subcontinent( Bangladesh, India, Nepal, Maldives, Pakistan and Sri Lanka) and in Burma. The terms lakh (100,000 or 1,00,000 in Indian notation) and crore (10,000,000 or 1,00,00,000) are used in Indian English to express large numbers. For example, in India 150,000 rupees is called 1.5 lakh rupees, written ₹1,50,000; while 30,000,000 (thirty million) rupees is called 3 crore rupees, written ₹3,00,00,000 with commas at the thousand, lakh, and crore levels; and 1,000,000,000 (one billion) rupees is called 100 crore rupees or one arab, written ₹1,00,00,00,000.

The Indian number-word system corresponds to the western system for the zeroth through fourth powers of ten: one, ten, one hundred, one thousand, ten thousand. For higher powers, the names no longer correspond. In the Indian system, the next powers of ten are called one lakh, ten lakh, one crore, ten crore, one hundred crore, and so on: there are the single words lakh = 105 and crore = 107. In the Western system, the next powers of ten are called one hundred thousand, one million, ten million, one hundred million, one billion, and so on: there are the single words million = 10^6, billion = 10^9, trillion = 10^1^2, etc.

 

Sample Questions
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Question : 1

What must be subtracted from 11010101 to get 2635967 ?

Right Option : C
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Question : 2

 6 thousand  =  ________  hundreds

Right Option : B
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Question : 3

The smallest three digit number exactly divisible by 15 is __________________

Right Option : B
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