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Insert commas suitably and write the names according to International System of Numeration :
(a) 78921092
(b) 7452283
(c) 99985102
(d) 48049831
To do:
We have to insert commas suitably and write the names according to International System of Numeration.
Solution:
We know that,
In International System, there are ones, tens, hundreds, thousands, and millions.
The first comma is placed after the three digits from the right to mark thousands, and
The second comma is placed after three more digits on the left to mark the millions.
The commas are placed after every 3 digits from the right in this system.
Therefore,
(a) 78921092 = 78,921,092
In word format:
Seventy-eight million nine hundred twenty-one thousand ninety-two.
(b) 7452283 = 7,452,283
In word format:
Seven million four hundred fifty-two thousand two hundred eighty-three.
(c) 99985102 = 99,985,102
In word format:
Ninety-nine million nine hundred eighty-five thousand one hundred two.
(d) 48049831 = 48,049,831
In word format:
Forty-eight million forty-nine thousand eight hundred thirty-one.