1. Write the following numbers in words as per the Indian system of numeration.
a. 5,08,943
b. 28,86,073
c. 75,92,000
d. 54,87,222
2. Write the following numbers in words as per the International system of numeration.
a. 843,628
b. 8,372,131
c. 2,937,139
d. 645,231
3. Write the following numbers in figures.
a. Seventy-three lakh thirty-five thousand eight hundred sixty-one
b. Five lakh twenty thousand
c. Ninety-nine lakh ninety-nine thousand nine hundred ninety-nine
d. Four million twenty-eight thousand six hundred nineteen
4. Insert commas (,) and write the numbers as per the Indian and the International systems of numeration.
a. 325640
b. 6602140
c. 1000658
d. 321012
e. 7851254
Answer (2)
Here are the answers to the questions:
Writing numbers in words as per the Indian system of numeration:
a. 5,08,943 = Five lakh eight thousand nine hundred forty-three
b. 28,86,073 = Twenty-eight lakh eighty-six thousand seventy-three
c. 75,92,000 = Seventy-five lakh ninety-two thousand
d. 54,87,222 = Fifty-four lakh eighty-seven thousand two hundred twenty-two
Writing numbers in words as per the International system of numeration:
a. 843,628 = Eight hundred forty-three thousand six hundred twenty-eight
b. 8,372,131 = Eight million three hundred seventy-two thousand one hundred thirty-one
c. 2,937,139 = Two million nine hundred thirty-seven thousand one hundred thirty-nine
d. 645,231 = Six hundred forty-five thousand two hundred thirty-one
Writing numbers in figures:
a. Seventy-three lakh thirty-five thousand eight hundred sixty-one = 73,35,861
b. Five lakh twenty thousand = 5,20,000
c. Ninety-nine lakh ninety-nine thousand nine hundred ninety-nine = 99,99,999
d. Four million twenty-eight thousand six hundred nineteen = 4,028,619
Inserting commas and writing the numbers as per the Indian and the International systems of numeration:
a. 325640: In Indian System = 3,25,640; In International System = 325,640
b. 6602140: In Indian System = 66,02,140; In International System = 6,602,140
c. 1000658: In Indian System = 10,00,658; In International System = 1,000,658
d. 321012: In Indian System = 3,21,012; In International System = 321,012
e. 7851254: In Indian System = 78,51,254; In International System = 7,851,254
These conversions use the differences in the grouping of digits between the Indian and International numeral systems. In the Indian system, numbers are grouped in lakhs and crores, whereas in the International system, they are grouped in thousands and millions. This creates differences in where the commas (,) are placed.
The answer explains how to write numbers in both the Indian and International systems of numeration. It provides explicit examples of numbers written in words and their figures. Comma placements are also demonstrated according to both systems.
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