The cardinal numbers (one, two, three, etc.) are adjectives referring to quantity, and the ordinal numbers (first, second, third, etc.) refer to distribution.
Number | Cardinal | Ordinal |
---|---|---|
1 |
one |
first |
2 |
two |
second |
3 |
three |
third |
4 |
four |
fourth |
5 |
five |
fifth |
6 |
six |
sixth |
7 |
seven |
seventh |
8 |
eight |
eighth |
9 |
nine |
ninth |
10 |
ten |
tenth |
11 |
eleven |
eleventh |
12 |
twelve |
twelfth |
13 |
thirteen |
thirteenth |
14 |
fourteen |
fourteenth |
15 |
fifteen |
fifteenth |
16 |
sixteen |
sixteenth |
17 |
seventeen |
seventeenth |
18 |
eighteen |
eighteenth |
19 |
nineteen |
nineteenth |
20 |
twenty |
twentieth |
21 |
twenty-one |
twenty-first |
22 |
twenty-two |
twenty-second |
23 |
twenty-three |
twenty-third |
24 |
twenty-four |
twenty-fourth |
25 |
twenty-five |
twenty-fifth |
26 |
twenty-six |
twenty-sixth |
27 |
twenty-seven |
twenty-seventh |
28 |
twenty-eight |
twenty-eighth |
29 |
twenty-nine |
twenty-ninth |
30 |
thirty |
thirtieth |
31 |
thirty-one |
thirty-first |
40 |
forty |
fortieth |
50 |
fifty |
fiftieth |
60 |
sixty |
sixtieth |
70 |
seventy |
seventieth |
80 |
eighty |
eightieth |
90 |
ninety |
ninetieth |
100 |
one hundred |
hundredth |
500 |
five hundred |
five hundredth |
1,000 |
one thousand |
thousandth |
100,000 |
one hundred thousand |
hundred thousandth |
1,000,000 | one million | millionth |
Said | Written | Said |
half |
0.5 |
point five |
a quarter |
0.25 |
point two five |
three quarters |
0.75 |
point seven five |
Written | Said |
---|---|
25% |
twenty five percent |
50% |
fifty percent |
75% |
seventy five percent |
100% |
a/one hundred percent |
Written | Said |
$1,200 |
one thousand two hundred dollars |
£16,486 |
sixteen thousand four hundred and eighty-six pounds |
545kms |
five hundred and forty-five kilometres |
$25.35 |
twenty-five dollars thirty-five |
Written | Said |
---|---|
1988 |
Nineteen eighty-eight |
1864 |
Eighteen sixty-four |
1999 |
Nineteen ninety-nine |