Page 22 - Math 4

Number System Number System

b) Nepal Government decided to provide a grant of four million seven
hundred fifty thousand three hundred rupees to the flood and
landslide victims.
c) The cost of constructing a road is about one hundred twenty million
five hundred eighty thousand rupees.
13. Let's write the greatest and the least numbers formed by the given
digits.

a) 3-digit numbers formed by 7, 0 4
b) 4-digit numbers formed by 6, 2, 5, 8
c) 5-digit numbers formed by 3, 0, 1, 9 6
d) 6-digit numbers formed by 2, 7, 4, 0, 8, 5
14. Its your time -Project work!

a) Write one numeral for each of 6-digit, 8-digit, and 9-digit in a chart
paper.
(i) Rewrite them using commas in Nepali and International systems.
(ii) Write their number names in Nepali and International systems.

(iii) Show them in place value table in Nepali and International systems.
b) Make 10 flash-cards of equal size by cutting a chart paper.

(i) Write 0 to 9 in each flash-card 0 1 2 3 4 5 6 7 8 9

(ii) Play with the greatest and the least numbers of 2-digit, 3-digit...
9-digit by arranging the different flash-cards.
c) Visit the available website such as www.google.com in your school
computer or your own computer or your family member's mobile.

(i) Search and write the present population of Nepal in Nepali and
International systems.
(ii) Can you search the population of your district? If so, write the
present population of your district.

1.13 Rounding off numbers - Estimation

Let's investigate the rules for rounding off numbers to the nearest tens.

a) Round off 3 to the nearest tens.

3 is close to 0. 0 1 2 3 4 5 6 7 8 9 10
So, rounding off 3 to the nearest ten in 0.

vedanta Excel in Mathematics - Book 4 20 Approved by Curriculum Development Centre, Sanothimi, Bhaktapur