Wikipedia:Reference desk/Archives/Mathematics/2024 May 29

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May 29

What is 'lakh' and 'crore'? How can I understand Indian articles with strings such as 1,00,00, 1,50,00 and so on ?

sirs i really don't understand this lakh and crore business which has lately become very common on the internet apparently it is some kind of indian custom, indian reckoning please tell me how can you place the comma after two digits only (counting from the front) firstly how can you go beyond lakh and crore how can i reckon a number with eight digits 1,00,00,00 ??? one hundred lakh and how many crore ? if a crore is one tenth of a lakh, hold on, one lakh is just a hundred thousand ? so how much is a crode please?? if this 1,00,00 is a lakh entire sirs please forgive my discursiveness i was trying to read up each and everything on this subject and i could not put my head around it kindly direct me to any pertinent source where i can understand lakh, crore, indian customary numbers 2601:481:80:6E60:6C4B:56AE:F2AB:2844 (talk) 23:55, 29 May 2024 (UTC)

We have articles on Lakh and Crore. Do they answer your question? They seem to be a feature of the Indian counting system, and not common in other countries. --RDBury (talk) 00:27, 30 May 2024 (UTC)

I think I have studied very well and I am understanding it now.surely this will improve my scores in JEE.the invigilators and examiners will be very pleased with my fast reckoning. thank you sirs 2601:481:80:6E60:6846:DCBF:5125:F19D (talk) 05:18, 31 May 2024 (UTC)

If you see commas in unexpected places, the easiest is to ignore them. 12,34,567 is the same number as 1234567.  --Lambiam 06:20, 30 May 2024 (UTC)

Kindly don't be writing just any x y z, how can it be same amount if the crode and lakh is arranged in a different manner, since a crode and lakh have values each of their own, they cannot be mingled around or preponed 2601:481:80:6E60:6846:DCBF:5125:F19D (talk) 05:17, 31 May 2024 (UTC)

They are interconvertible values. One crore is equal to 100 lakh, and also equal to 10 million. So 3.5 crore + 7 lakh = 35000000 + 700000 = 35700000, which you can also write as 3,57,00,000 or as 35,700,000 or as 35 700 000.  --Lambiam 09:27, 31 May 2024 (UTC)

In many parts of Europe we use a decimal comma, not a decimal dot. You ignore those at your peril - if your honorarium is 3,14 Euro per hour, it's quite different from 314 Euro per hour ;-). --Stephan Schulz (talk) 18:17, 5 June 2024 (UTC)

My response was directed at the original poster, 2601:... Before responding, I checked that the IP geolocates to a staunchly decimally dotted area. The JEE, for which they are preparing, also uses decimal points.  --Lambiam 20:56, 5 June 2024 (UTC)