Understanding Numbers: Cardinal and Ordinal

Front

What are Cardinal Numbers?

Back

Cardinal Numbers are numbers used mainly for counting, such as 1 (one), 2 (two), etc.

Front

Give an example of how Cardinal Numbers are used when counting things.

Back

I have two brothers. There are thirty-one days in January.

Front

How do you use Cardinal Numbers to give your age?

Back

I am thirty-three years old. My sister is twenty-seven years old.

Front

How do you use Cardinal Numbers to give a telephone number?

Back

Our phone number is two-six-three, three-eight-four-seven (481-2240).

Front

How do you express years using Cardinal Numbers?

Back

She was born in nineteen seventy-five (1975). America was discovered in fourteen ninety-two.

Front

What is the form for expressing years up to 1999?

Back

We divide the year into two parts, e.g., nineteen seventy-five.

Front

How do we express years from 2000 onwards?

Back

We say two thousand (2000), two thousand and one (2001), etc.

Front

What do we normally say for the number '0'?

Back

We normally say 'zero' for the number '0'.

Front

How do we say '0' when giving a telephone number?

Back

We often say O like the name of the letter O, e.g., five-O-five.

Front

How are Ordinal Numbers created from Cardinal Numbers?

Back

Ordinal numbers are normally created by adding -TH to the end of a cardinal number.