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)