Page 27 - Math 7

Number Systems in Diff erent Bases

From the table, the number name of 916724385630 in Nepali system is:

Nine kharab sixteen arab seventy-two crore forty-three lakh eighty-five thousand
six hundred thirty.

In International system the number name is:
Nine hundred sixteen billion seven hundred twenty-four million three hundred
eighty-five thousand six hundred thirty.

Comparison between Nepali and International numeration system.

100 thousand = 1 lakh , 1 million = 10 lakhs, 10 million = 1 crore
1 billion = 1 arab, 100 billions = 1 kharab
Placement of commas
We can read and write the larger numbers more easily and comfortably when the
periods of the digits are separated by using commas. Let's take a numeral 507490680
and rewrite it using commas in both Nepali and International system.
Nepali system International system
50,74,90,680 507,490,680
Separating unit period Separating unit period
Separating thousands period
Separating lakhs period Separating thousands period

The number name is fifty crore The number name is five hundred
seventy-four lakh ninety thousand seven million four hundred ninety
six hundred eighty thousand six hundred eighty.

EXERCISE 2.1

General Section - Classwork

1. Let's say and write the number names in Nepali system and in International
system.

Number name in Nepali Number name in
Numerals
system International system
a) 100000
b) 4000000
c) 70000000

d) 200000000
e) 5000000000
f) 90000000000
g) 800000000000

Approved by Curriculum Development Centre, Sanothimi, Bhaktapur 25 Vedanta Excel in Mathematics - Book 7