Numbers
The main units of numbers in English
are:
1 |
10 |
100 |
1000 |
1000000 |
1000000000 |
one |
ten |
hundred |
thousand |
million |
billion |
Here is a list of numbers. On the left
are normal or "cardinal" numbers. On the right are "ordinal"
numbers, which we use to define a thing's position in a series.
Cardinal Numbers
|
Ordinal Numbers
|
0
|
zero, nought |
|
|
1
|
one
|
1st
|
first
|
2
|
two
|
2nd
|
second
|
3
|
three |
3rd
|
third
|
4
|
four
|
4th
|
fourth
|
5
|
five
|
5th
|
fifth |
6
|
six
|
6th
|
sixth |
7
|
seven |
7th
|
seventh |
8
|
eight |
8th
|
eighth |
9
|
nine
|
9th
|
ninth |
10
|
ten
|
10th |
tenth |
11
|
eleven |
11th |
eleventh |
12
|
twelve |
12th |
twelfth |
13
|
thirteen |
13th |
thirteenth |
14
|
fourteen |
14th |
fourteenth |
15
|
fifteen |
15th |
fifteenth |
16
|
sixteen |
16th |
sixteenth |
17
|
seventeen |
17th |
seventeenth |
18
|
eighteen |
18th |
eighteenth |
19
|
nineteen |
19th |
nineteenth |
20
|
twenty |
20th |
twentieth |
21
|
twenty-one |
21st |
twenty-first |
22
|
twenty-two |
22nd |
twenty-second |
23
|
twenty-three |
23rd |
twenty-third |
24
|
twenty-four |
24th |
twenty-fourth |
30
|
thirty |
30th |
thirtieth |
31
|
thirty-one |
31st |
thirty-first |
40
|
forty |
40th |
fortieth |
50
|
fifty |
50th |
fiftieth |
60
|
sixty |
60th |
sixtieth |
70
|
seventy |
70th |
seventieth |
80
|
eighty |
80th |
eightieth |
90
|
ninety |
90th |
ninetieth |
100
|
hundred |
100th |
hundredth |
101
|
hundred and one |
101st |
hundred and first |
152
|
hundred and fifty-two
|
152nd |
hundred and fifty-second
|
200 |
two
hundred |
200th |
two
hundredth |
1,000 |
thousand |
1,000th |
thousandth |
1,000,000 |
million |
1,000,000th |
millionth |
1,000,000,000 |
billion |
1,000,000,000th |
billionth |
For numbers in
the hundreds, the British usually say "and" but
the Americans usually do not say "and":
- British
English
120 = one hundred and twenty
- American
English
120 = one hundred twenty
|
|
Note that in English, we usually
separate the digits of numbers over 999 with a comma (,). We
count 3 digits from the
right and insert a comma, like this:
|
|
, |
- |
- |
- |
, |
- |
- |
- |
|
|
|
|
|
|
1 |
, |
0 |
0 |
0 |
one thousand |
|
1 |
, |
0 |
0 |
0 |
, |
0 |
0 |
0 |
one million |
1 |
2 |
, |
7 |
5 |
0 |
, |
2 |
0 |
0 |
twelve million, seven hundred
and fifty thousand, two hundred |
We use a point (.) to indicate a
decimal number, or to separate dollars from cents, pounds from
pennies and so on. Here are some examples:
|
|
|
|
|
0 |
. |
1 |
|
= |
one tenth or 1/10 |
|
|
|
|
|
1 |
. |
0 |
|
= |
one |
|
1 |
, |
0 |
0 |
0 |
|
|
|
= |
one thousand |
|
1 |
, |
5 |
0 |
0 |
. |
7 |
5 |
= |
one thousand five hundred and
three quarters |
|
|
|
|
$ |
1 |
. |
5 |
0 |
= |
one dollar and fifty cents |
|
|
$ |
7 |
0 |
0 |
. |
0 |
0 |
= |
seven hundred dollars |
£ |
3 |
, |
5 |
0 |
0 |
. |
0 |
1 |
= |
three thousand five hundred
pounds and one penny |
Be careful with
commas and points. Some languages use them in
the opposite way! |
|
|