Page 29 - Math 7

Number Systems in Diff erent Bases

8. 2.5 arab = 2500000000 = Two arab fifty crore = Two billion five hundred million.
7.38 billion = 7380000000 = Seven billion three hundred eighty million

= Seven arab thirty-eight crore
Now, let's write the values of the following numbers and rewrite the number
names in Nepali or in International systems.

a) 1.6 crore b) 4.75 crore c) 3.4 arab d) 5.13 arab
e) 2.7 million f) 6.99 million g) 7.2 billion h) 8.36 billion

Creative Section B
9. a) Find the difference between one million and two hundred fifty thousand.
Express the difference in words in International and Nepali Systems.

b) Find the difference between two billion and eighty-five million. Express the
difference in words in International and Nepali System.

c) Find the difference between seven crore and seventy-five lakh. Express the
difference in words in Nepali and International Systems.
d) Find the difference between three arab and forty-eight crore. Express the
difference in words in Nepali and International Systems.
10. a) By how much is Rs 3.6 million more than Rs 3.6 lakh? Express in Nepali
System of numeration.
b) By how much is Rs 7.5 crore more than Rs 7.5 million? Express in
International System of numeration.
It's your time - Project work!

11. Using the digits from 0 to 9, let's write the greatest and the least ten-digit
numerals.
a) Express these numerals in words in Nepali and International Systems.

b) Express the difference between these numerals in Nepali and International
Systems.

12. Let's visit the available and reliable website. Then, search and find the
following facts and figures:

a) Today's live population of the three most populated countries in the world.
Express the population in Nepali and International Systems of numeration.

b) Find the total population of these three countries and express in words in
Nepali and International System of numeration.

c) The distance between the Sun and its four nearest planets. Express the
distance in words in Nepali and International System of numeration.

Approved by Curriculum Development Centre, Sanothimi, Bhaktapur 27 Vedanta Excel in Mathematics - Book 7