Question

Place commas correctly and write the numerals.
Seven crore fifty-two lakh twenty one thousand three hundred two

Answer 1

Hint: We use the concept of writing the numbers from word form to numerical form. Then place commas after the ending of each group i.e. like hundreds, thousands etc.
* In word form, the words crore by 1,00,00,000 ; lakhs denote \[1,00,000\]; ten thousands denote \[10,000\]; thousands denote \[1000\]; hundreds denote \[100\] ; tens denote \[10\]and ones denote \[1\] where all these are just the idea of places given to the digits.

Complete answer:
We are given the word form as ‘Seven crore fifty-two lakh twenty one thousand three hundred two’
Here we write the value coming in each place separately and then combine to form a numeric form of the number.
Seven crore means we have the number 7,00,00,000 … (1)
Fifty-two lakh means we have the number 52,00,000 … (2)
Twenty one thousand means we have the number 21,000 … (3)
Three hundred two means we have the number 302 … (4)
Now we write the numeric form of the number by adding the values from equations (1), (2), (3) and (4)
Seven crore fifty-two lakh twenty one thousand three hundred two can be written in numeric form as
\[7,00,00,000 + 52,00,000 + 21,000 + 302 = 7,52,21,302\]

\[\therefore \]The numerical seven crore fifty-two lakh twenty one thousand three hundred two becomes 7,52,21,302.

Note: Many students make the mistake of applying the international system of naming here which is wrong as the word form has crores and lakhs in it. Keep in mind the international system has words like billion, million in it whereas Indian system has words like crores and lakhs in it.