Cardinal
and ordinal number
Cardinal number is a
number indicate the counting or calculating
Cardinal numbers are used
to:
ü Show price
ü Show time
ü Show physical appearances such as weights,
heights, ages etc.
ü Show speed
ü Announce flight number, etc
The function of cardinal
number:
A. Indicate the date
Example:
- January 3rd (January third)
- December 31 (December 31)
B. To indicate the year
Example: 1968
(nineteen sixty eight)
C. To indicate the time (hours)
Example: 10.00 = ten
o’clock
Study the table below
|
Time
|
Questions
|
Responses
|
|
Time
|
What time is it now?
What’s the time?
|
It is five o’clock
|
|
Day
|
What day is it today?
What day is it tomorrow?
What day was it yesterday?
|
It’s Wednesday
It’s Thursday
It was Tuesday
|
|
Months
|
What month is it now?
What month is next month?
What month was last month/
|
It’s january
It’s february
It was december
|
|
Dates and years
|
What date is it today?
What is the date today
|
It’s the thirty first of july two thousand and ten
|
D. To indicate the phone number
Example: 91844918 (nine
one eight four four nine one eight)
E. Used sum in arithmatic, like
- Multiplication (.......times.....)
Example:
5x5=25 (five times five is twenty five)
- Division (......divided by.....)
Example:
20:2 =10 (twenty divided by two is ten)
- Addition (.....plus......)
Example:
15+15=30 (fifteen plus fifteen is thirty)
- Substraction (.....minus......)
Example:
55-10= 45 (fifty five minus ten is fourty five)
- Even number
Example:
two, four, six, eight
- Odd number
Example:
one, three, five, seven
- Decimal form
Example:
- 0.6 +0.3 = 0.9 (zero point six plus zero point three is zero point nine)
Ordinal number
Ordinal number is a
number indicate rotation.
Sample:
1st =first
2nd= second
3rd= third
4th= fourth
5th=fifth
The function of ordinal number
1) Indicate the rank or level
Example:
The
first word that the baby could say is mommy
The
supermarket lies in the second floor of the building
Aini
is in the third grade of vocational High School
2) Indicate the date
Example:
1st
january (january the first / the first of january ) people celebrate New year’s
Eve in 1st January.
31st
december (thirty first of december)



