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    Learn English > English lessons and exercises > English test #6468: Cardinal and ordinal numbers
    > Other English exercises on the same topic: Numbers [Change theme]
    > Similar tests: - Fractions and percentages - ESL-Numbers from 1 to 10 - Geometric shapes - Vocabulary: mathematics - Geometry-Vocabulary - Idioms: numbers - Numbers and dates... (Level 1) - Dozen(s), hundred(s), thousand(s), million(s)?
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    Cardinal and ordinal numbers


    Cardinal and ordinal numbers

    Cardinal numbers tell quantities. Ordinal numbers tell the rank of something.

    Example :

    Four  presidents were elected in the USA before 1817. The first president was George Washington.

    'Four' is a cardinal number.

    'The first' is an ordinal number.


    ➡️ I)  Cardinal numbers:

    If you need some help to write numbers: ' loading='lazy'>

    Hundred, thousand, million, billion ... don't change when there is a number before.
    They are in the plural form when they are used with a noun and "of".

    Three thousand people. 

     Thousands of people. 

    How to pronounce special numbers:

    1.754 = one point seven five four.

    5,353.5 = five thousand three hundred and fifty-three point five.

     0 is read 'nought' OR 'zero' :

             0.02 = nought point nought two ou zero point zero two

    1a/ How to read the zero:

    Measures: 3 degrees above zero. 

    Phone numbers, room numbers, dates: use the letter 'O'.

    1b/ Percentages :


    25% = twenty-five per cent.

     100% = a hundred per cent.

    200% = two hundred per cent.

    3.75% = three point seven five per cent.

    1c/ Years:

             1945 = nineteen forty-five.

    2010 = two thousand and ten/twenty ten

    ➡️   II) Ordinal numbers:


    1st  first

    11th eleventh 

    10th tenth

    100th hundredth


    12th  twelfth


    1,000th thousandth

    3rd third

    13th thirteenth

    30th thirtieth


    1,000,000th millionth

    4th fourth

    14th fourteenth  

    40th fortieth


    5th fifth


    50th fiftieth


    6th sixth


    60th sixtieth


    7th seventh


    70th seventieth


    8th eighth


    80th eightieth


    9th ninth


    90th ninetieth


    The first time. 

    ➡️ III) Fractions:

    1/5 = one fifth

    2/3 = two thirds

    1/25 = one twenty-fifth      

    Caution:  1/2 = one/a half  and 1/4 = one/a quarter

    ➡️ IV) Dates:

    Several ways to write them:

      14 July 1789; July 14th 1789; 14th July 1789; July 14, 1789.

    How to pronounce:

    -         The fourteenth of July, seventeen eighty-nine.

    -          July the fourteenth, seventeen eighty-nine.


    Exercise :

    Write down these numbers. Example:2.53 = two point five three

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