Ordinal numbers
Table of Ordinal Numbers
1 | st | first | 11 | th | eleventh | 21 | st | twenty-first | 31 | st | thirty-first | ||
2 | nd | second | 12 | th | twelfth | 22 | nd | twenty-second | 40 | th | fortieth | ||
3 | rd | third | 13 | th | thirteenth | 23 | rd | twenty-third | 50 | th | fiftieth | ||
4 | th | fourth | 14 | th | fourteenth | 24 | th | twenty-fourth | 60 | th | sixtieth | ||
5 | th | fifth | 15 | th | fifteenth | 25 | th | twenty-fifth | 70 | th | seventieth | ||
6 | th | sixth | 16 | th | sixteenth | 26 | th | twenty-sixth | 80 | th | eightieth | ||
7 | th | seventh | 17 | th | seventeenth | 27 | th | twenty-seventh | 90 | th | ninetieth | ||
8 | th | eighth | 18 | th | eighteenth | 28 | th | twenty-eighth | 100 | th | one hundredth | ||
9 | th | ninth | 19 | th | nineteenth | 29 | th | twenty-ninth | 1,000 | th | one thousandth | ||
10 | th | tenth | 20 | th | twentieth | 30 | th | thirtieth | 1,000,000 | th | one millionth |
Form
Spelling of Ordinal Numbers
Just add th to the cardinal number:
- four - fourth
- eleven - eleventh
Exceptions:
- one - first
- two - second
- three - third
- five - fifth
- eight - eighth
- nine - ninth
- twelve - twelfth
In compound ordinal numbers, note that only the last figure is written as an ordinal number:
- 421st = four hundred and twenty-first
- 5,111th = five thousand, one hundred and eleventh
Figures
When expressed as figures, the last two letters of the written word are added to the ordinal number:
- first = 1st
- second = 2nd
- third = 3rd
- fourth = 4th
- twenty-sixth = 26th
- hundred and first = 101st
Titles
In names for kings and queens, ordinal numbers are written in Roman numbers. In spoken English, the definite article is used before the ordinal number:
- Charles II - Charles the Second
- Edward VI - Edward the Sixth
- Henry VIII - Henry the Eighth
Cardinal Numbers
Table of Cardinal Numbers
1 | one | 11 | eleven | 21 | twenty-one | 31 | thirty-one |
2 | two | 12 | twelve | 22 | twenty-two | 40 | forty |
3 | three | 13 | thirteen | 23 | twenty-three | 50 | fifty |
4 | four | 14 | fourteen | 24 | twenty-four | 60 | sixty |
5 | five | 15 | fifteen | 25 | twenty-five | 70 | seventy |
6 | six | 16 | sixteen | 26 | twenty-six | 80 | eighty |
7 | seven | 17 | seventeen | 27 | twenty-seven | 90 | ninety |
8 | eight | 18 | eighteen | 28 | twenty-eight | 100 | a/one hundred |
9 | nine | 19 | nineteen | 29 | twenty-nine | 1,000 | a/one thousand |
10 | ten | 20 | twenty | 30 | thirty | 1,000,000 | a/one million |
Separation between hundreds and tens
Hundreds and tens are usually separated by 'and' (in American English 'and' is not necessary).
110 - one hundred and ten
1,250 - one thousand, two hundred and fifty
2,001 - two thousand and one
1,250 - one thousand, two hundred and fifty
2,001 - two thousand and one
Hundreds
Use 100 always with 'a' or 'one'.
100 - a hundred / one hundred
'a' can only stand at the beginning of a number.
100 - a hundred / one hundred
2,100 - two thousand, one hundred
2,100 - two thousand, one hundred
Thousands and Millions
Use 1,000 and 1,000,000 always with 'a' or 'one'.
1,000 - a thousand / one thousand
201,000 - two hundred and one thousand
Use commas as a separator.
57,458,302
201,000 - two hundred and one thousand
The Number 1,000,000,000
In English this number is a billion. This is very tricky for nations where 'a billion' has 12 zeros. 1,000,000,000,000 in English, however, is a trillion.
But don't worry, these numbers are even a bit problematic for native speakers: for a long time the British 'billion' had 12 zeros (a number with 9 zeros was called 'a thousand million'). Now, however, also in British English 'a billion' has 9 zeros. But from time to time this number still causes confusion (just like this paragraph, I'm afraid). ;o)
Singular or Plural?
Numbers are usually written in singular.
two hundred Euros
several thousand light years
The plural is only used with dozen, hundred, thousand, million, billion, if they are not modified by another number or expression (e.g. a few / several).
hundreds of Euros
thousands of light years
several thousand light years
thousands of light years
English Numbers - (IPA - phonetic transcription)
Cardinal NumbersOrdinal Numbers 1 through 10one [wʌn]first [fəːst]two [tuː]second [ˈsɛk(ə)nd]three [θriː]third [θəːd]four [fɔː]fourth [fɔːθ]five [fʌɪv]fifth [fɪfθ]six [sɪks]sixth [sɪksθ]seven [ˈsɛv(ə)n]seventh [ˈsɛv(ə)nθ]eight [eɪt]eighth [eɪtθ]nine [nʌɪn]ninth [nʌɪnθ]ten [tɛn]tenth [tɛnθ] 11 through 19eleven [ɪˈlɛv(ə)n]eleventh [ɪˈlɛv(ə)nθ]twelve [twɛlv]twelfth [twɛlfθ]thirteen [ˈθəːtiːn]thirteenth [ˈθəːtiːnθ]fourteen [ˈfɔːtiːn]fourteenth [ˈfɔːtiːnθ]fifteen [ˈfɪftiːn]fifteenth [ˈfɪftiːnθ]sixteen [ˈsɪkstiːn]sixteenth [ˈsɪkstiːnθ]seventeen [ˈsɛv(ə)ntiːn]seventeenth [ˈsɛv(ə)ntiːnθ]eighteen [ˈeɪtiːn]eighteenth [ˈeɪtiːnθ]nineteen [ˈnʌɪntiːn]nineteenth [ˈnʌɪntiːnθ] 20 through 100twenty [ˈtwɛnti]twentieth [ˈtwɛntiːθ]thirty [ˈθəːti]thirtieth [ˈθəːtiːθ]forty [ˈfɔːti]fortieth [ˈfɔːtiːθ]fifty [ˈfɪfti]fiftieth [ˈfɪftiːθ]sixty [ˈsɪksti]sixtieth [ˈsɪkstiːθ]seventy [ˈsɛv(ə)nti]seventieth [ˈsɛv(ə)ntiːθ]eighty [ˈeɪtiː]eightieth [ˈeɪtiːθ]ninety [ˈnʌɪnti]ninetieth [ˈnʌɪntiːθ]hundred [ˈhʌndrəd]hundredth [ˈhʌndrədθ] 1000 and 1,000,000thousand [ˈθaʊz(ə)nd]thousandth [ˈθaʊz(ə)ndθ]million [ˈmɪljən]millionth [ˈmɪljənθ]
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