Indian System of Numbers


Knowing Our Numbers I - Concepts
Class - Navodaya Entrance 6th 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
(More Questions for each concept available in Login)
Question : 1

What is the reduced form of the following expanded form:     7  X   10000  +   5  X  100  +   4  X  10  +  6

Right Option : A
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Question : 2

The cost of a pen is the largest two-digit number (in Rs.). The cost of a text book and geometry box respectively are the successor and predecessor of the cost of the pen. Find the sum of the costs of the text book and geometry box.

Right Option : B
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Explanation
Question : 3

Make the smallest four digit number by using any one digit twice by 0,4,9 .

Right Option : B
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Explanation
 
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