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WHOLE NUMBERS ALSO KNOWN AS CARDINAL NUMBERS – USED FOR COUNTING
|101||One hundred and one …||101|
ORDINAL NUMBERS – USED FOR RANKING
|In figures||In words||Pronounce It|
|101st||the hundred and first||…|
Ordinal numbers are often used in fractions:-
|Symbols||Word (common term in brackets)||Pronounce It|
|–||Minus (Take away)||–|
|x||Multiplied by (Times)||x|
|(((1 + 6) – 2) x 2) ÷ 2.5=4||One plus six minus two multiplied by two divided by two point five equals four
One and six take away two times two divided by two point five is 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
We often say “a” instead of “one”.
Not all numbers are whole numbers, or just fractions (see above), they are a mixture of both.
When pronouncing decimals we use the word “point” to represent the dot. The numbers following the dot are pronounced separately.
When you have the number 1.36 we say “One point three six.”
SQUARED / CUBED / TO THE POWER OF
Square 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.
~ 0 ~
What could possibly be interesting about nothing?
Try writing the numbers zero ( 0 ) through nine ( 9 ).
0 1 2 3 4 5 6 7 8 9
Then write how many numbers you have counted:-
1 2 3 4 5 6 7 8 9 10
Yes, ten numbers, without using the number 10.
You can put as many noughts in front of a number without changing the value of that number:-
01, 002, 0003, 00004 …
In English 10, 20, 30, through to 90 are 1 ten, 2 tens, 3 tens, etc.
Also there are a number of ways you can say 0 in English.
~ 12 ~
The number 12 is often represented as a dozen and the number 6 as a half dozen.
~ 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 = 1012
In American English billion means a thousand million = 1,000,000,000 = 109
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 109 and “million million” for 1012.
Milliard ” is French for the number 109. 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.
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.
آخرین ورودی ها
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