Page 8 - Math 4

Number System

(a) Calculator:

(b) Watch:

(c) Mobile:

(d) Headphone:

(e) Sound box:
4. Let's read these interesting facts. Rewrite the number names in
numerals.

(a) The highest peak of the world 'Sagarmatha' is eight thousand eight

hundred forty-eight metres high.

(b) The highest lake of Nepal 'Tilicho lake' is situated at an altitude of four
thousand nine hundred nineteen metres.

(c) Mariana Trench is the deepest trench in the world. It is about ten
thousand nine hundred ninety-four metres deep.

(d) At the equator, the earth rotates at a speed of about one thousand seven

hundred kilometres per hour.
5. Let's tell and write how many digits there are in these numerals.

(a) 70 is a digit numeral. (b) 306 is a digit numeral.

(c) 5080 is a digit numeral. (d) 73014 is a digit numeral.
6. Let's listen to your teacher! Write 4 digit numerals from your teacher
as quickly as possible.

7. It's your time! Let's write any numerals, and then rewrite number names.

(a) A 2-digit numeral

(b) A 3-digit numeral

(c) A 4-digit numeral

vedanta Excel in Mathematics - Book 4 6 Approved by Curriculum Development Centre, Sanothimi, Bhaktapur