Convert between lakhs and crores and millions and billions.
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How the international system groups numbers: millions, billions, and what an arab is.
In the International system (also called the American system), large numbers are easy to read because commas are placed uniformly.
The digits are grouped from right to left in a simple 3-3-3 pattern (every three digits). After thousands, this system introduces millions, and then billions.
Example: (One billion)
Where the commas go in the Indian and international systems.
The Indian system groups digits by thousands, lakhs, and crores, while the International system groups them uniformly by thousands, millions, and billions.
Worked example: reading 9876501234 in both systems.
Problem. Read the large number by placing commas correctly in both the Indian and International (American) place value systems.
Write numbers in both systems, with a worked start.
Let us write the number 48121620 in both the Indian and International systems.
For the Indian system, we place commas in a 3-2-2 pattern from right to left, making it . Reading the place values, this number is written as Crore Eighty-One Lakh Twenty-One Thousand Six Hundred Twenty.
For the International system, we group the digits uniformly in a 3-3-3 pattern. Placing commas this way gives us 48,121,620. In words, we read the groups from left to right, making it Forty Eight One Hundred Twenty One Thousand Six Hundred Twenty.
Compare numbers written in different systems.
You are comparing financial reports from two regional offices. Office A reports a revenue of 500 lakhs. Office B reports a revenue of 5 million. Which statement correctly compares these amounts?