High School

Insert commas according to the Indian system of numeration and write the number names of the given numbers.

a. 2,15,780
b. 1,35,46,712
c. 56,89,067
d. 77,12,56,924
e. 30,56,00,071
f. 9,19,98,679

Answer :

Final answer:

The number names of the given numbers, with commas inserted according to the Indian system of numeration, are as follows:

  1. 215,780 - Two lakh fifteen thousand seven hundred eighty
  2. 13,54,6712 - One crore thirty-five lakh forty-six thousand seven hundred twelve
  3. 56,89,067 - Fifty-six lakh eighty-nine thousand sixty-seven
  4. 7,71,25,6924 - Seventy-seven crore twelve lakh fifty-six thousand nine hundred twenty-four
  5. 3,05,60,0071 - Three crore five lakh sixty thousand seventy-one
  6. 9,19,98,679 - Nine crore nineteen lakh ninety-eight thousand six hundred seventy-nine

Explanation:

To insert commas according to the Indian system of numeration and write the number names of the given numbers:

  1. 215,780 - The number has only one group of three digits, so we insert a comma after the first digit. The number name is 'Two lakh fifteen thousand seven hundred eighty'.
  2. 13,54,6712 - The number has two groups of three digits. We insert a comma after the first digit of the second group. The number name is 'One crore thirty-five lakh forty-six thousand seven hundred twelve'.
  3. 56,89,067 - The number has two groups of three digits. We insert a comma after the first digit of the second group. The number name is 'Fifty-six lakh eighty-nine thousand sixty-seven'.
  4. 7,71,25,6924 - The number has three groups of three digits. We insert commas after the first and second digits of the second and third groups. The number name is 'Seventy-seven crore twelve lakh fifty-six thousand nine hundred twenty-four'.
  5. 3,05,60,0071 - The number has three groups of three digits. We insert commas after the first and second digits of the second and third groups. The number name is 'Three crore five lakh sixty thousand seventy-one'.
  6. 9,19,98,679 - The number has three groups of three digits. We insert commas after the first and second digits of the second and third groups. The number name is 'Nine crore nineteen lakh ninety-eight thousand six hundred seventy-nine'.

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