About the numbers 1 to 10 and 0
Whole Numbers also known as Cardinal Numbers  used for counting 

Symbol  Word  Pronounce It 
0  Nought  0 
1  One  1 
2  Two  2 
3  Three  3 
4  Four  4 
5  Five  5 
6  Six  6 
7  Seven  7 
8  Eight  8 
9  Nine  9 
10  Ten  10 
More numbers
11  Eleven  11 
12  Twelve  12 
13  Thirteen  13 
14  Fourteen  14 
15  Fifteen  15 
16  Sixteen  16 
17  Seventeen  17 
18  Eighteen  18 
19  Nineteen  19 
20  Twenty  20 
21  Twentyone ...  21 
30  Thirty  30 
40  Forty  40 
50  Fifty  50 
60  Sixty  60 
70  Seventy  70 
80  Eighty  80 
90  Ninety  90 
100  One hundred  100 
101  One hundred and one ...  101 
1,000  One thousand  1,000 
1,000,000  One million  1,000,000 
1,000,000,000,000*  One billion  1,000,000,000,000 
Ordinal Numbers  used for ranking 

In figures  In words  Pronounce It 
1st  the first  1st 
2nd  the second  2nd 
3rd  the third  3rd 
4th  the fourth  4th 
5th  the fifth  5th 
6th  the sixth  6th 
7th  the seventh  7th 
8th  the eighth  8th 
9th  the ninth  9th 
10th  the tenth  10th 
11th  the eleventh  11th 
12th  the twelfth  12th 
13th  the thirteenth  13th 
14th  the fourteenth  14th 
15th  the fifteenth  15th 
16th  the sixteenth  16th 
17th  the seventeenth  17th 
18th  the eighteenth  18th 
19th  the nineteenth  19th 
20th  the twentieth  20th 
21st  the twentyfirst  ... 
22nd  the twentysecond  ... 
23rd  the twentythird  ... 
24th  the twentyfourth  ... 
25th  the twentyfifth  ... 
26th  the twentysixth  ... 
27th  the twentyseventh  ... 
28th  the twentyeighth  ... 
29th  the twentyninth  ... 
30th  the thirtieth  30th 
40th  the fortieth  40th 
50th  the fiftieth  50th 
60th  the sixtieth  60th 
70th  the seventieth  70th 
80th  the eightieth  80th 
90th  the ninetieth  90th 
100th  the hundredth  100th 
101st  the hundred and first  ... 
1000th  the thousandth  1000th 
Ordinal numbers are often used in fractions:
Fractions 

Symbol  Word  Pronounce It 
^{1}/_{8}  One eighth  
^{1}/_{5}  One fifth  
^{1}/_{4}  One quarter  
^{3}/_{4}  Three quarters  
^{1}/_{3}  One third  
^{2}/_{3}  Two thirds  
^{1}/_{2}  One half 
Sums 

Symbols  Word (common term in brackets)  Pronounce It 
+  Plus (And)  + 
  Minus (Take away)   
x  Multiplied by (Times)  x 
÷  Divided by  ÷ 
=  Equals (Is)  = 
.  Point  . 
%  Percent  % 
(((1 + 6)  2) x 2) ÷ 2.5=4  One plus six minus two multiplied by two divided
by two point five equals four 
1 + 6  2 x 2 ÷ 2.5=4 
10% 100=10  Ten percent of one hundred equals ten.  10% 100=10 
What to say 

One We often say "a" instead of "one". FractionsNot all numbers are whole numbers, or just fractions (see above), they are a mixture of both. For example: 
DecimalsWhen pronouncing decimals we use the word "point" to represent the dot. The numbers following the dot are pronounced
separately. 
Squared / Cubed / To the power ofSquare numbers are written 2² = we say "Two squared" = 2 x 2 = Two squared equals four. Cubed numbers are written 2³ = We say "Two cubed" = 2 x 2 x 2 = Two cubed equals eight You can also say "to the power of"  "Two to the power of two equals four." and "Two to the power of three equals eight." You can then have "to the power of" any number. Two to the power of twelve = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 = 4096. It's much easier to write 2¹² = 4096. 
Interesting Numbers 



When we use it  For example:  

0 = oh  after a decimal point  9.02 = "Nine point oh two." 
in bus or room numbers  Rooom 101 = "Room one oh one." Bus 602 = "Bus six oh two." 

in phone numbers  9130472 = "Nine one three oh four seven two."  
in years  1906 = "Nineteen oh six."  
0 = nought  before a decimal point  0.06 = "Nought point oh six." 
0 = zero  in temperature  10°C = "10 degrees below zero." 
US English for the number  0 = "Zero"  
0 = nil  in football  Chelsea 2 Manchester United 0 = "Chelsea two Manchester United nil." 
0 = love  in tennis  20  0 = "Twenty love." 
~ 12 ~
The number 12 is often represented as a dozen and the number 6 as a half dozen.
For example:
12 eggs= "A dozen eggs."
6 eggs = "Half a dozen eggs."
~ 13 ~
A dozen is 12, but a baker's dozen is 13, because in the past bakers who were caught shortchanging customers could be liable to severe punishment, so they used to add an extra bread roll to make up the weight.
~ 100 ~
A century is 100. The roman numeral for 100 is C, for centum.
One hundred is the basis of percentages (literally "per hundred"). 100% is the full amount of something.
*~ 1 billion ~
When is a billion not a billion?
In British English billion traditionally means a million million = 1,000,000,000,000 = 10^{12}
In American English billion means a thousand million = 1,000,000,000 = 10^{9}
The American billion has become standard in technical and financial use.
However, to avoid confusion it is better to use the terms "thousand million" for 10^{9} and "million million" for 10^{12}.
Milliard " is French for the number 10^{9}. It is not used in American English but is sometimes, but rarely, used in British English.
Letters as Numbers
~ k ~
The letter k is often used to denote a thousand. So, 1k = 1,000.
If you see a job advertised and it offers a salary of £12k it means £12,000.00.
~ m ~
The letter m is often used to denote a million. So, 1m = 1,000,000.
If you see a job advertised and it offers a salary of £12m, apply for it!
~ bn ~
The letters bn denote a billion. So, 1bn is usually 1,000,000,000 (see above).
If you see a job advertised and it offers a salary of £12bn, it's probably a missprint.
myriad
The word myriad used to mean 10,000. Nowadays it's used to refer to a countless number or multitude of specified things.
For example: Earth hosts a myriad of animals.