In American usage, four-digit numbers with non-zero hundreds are often named using multiples of "hundred" and combined with tens and ones: "One thousand one", "Eleven hundred three", "Twelve hundred twenty-five", "Four thousand forty-two", or "Ninety-nine hundred ninety-nine." In British usage, this style is common for multiples of 100 between 1,000 and 2,000 (e.g. 1,500 as "fifteen hundred") but not for higher numbers.
Americans may pronounce four-digit numbers with non-zero tens and ones as pairs of two-digit numbers without saying "hundred" and inserting "oh" for zero tens: "twenty-six fifty-nine" or "forty-one oh five". This usage probably evolved from the distinctive usage for years; 'nineteen-eighty-one'. It is avoided for numbers less than 2500 if the context may mean confusion with time of day: "ten ten" or "twelve oh four."
Expressing Numbers in English:
If a number is in the range 21 to 99, and the second digit is not zero, we should write the number as two words separated by a hyphen:
25 Twenty - five
57 fifty - seven
89 eighty-nine
Numbers over 100 are generally written in figures. However if you want to say them aloud or want to write them in words rather than figures you put 'and' in front of the number expressed by the last two figures. For example:
-203 two hundred and three (AmE: two hundred three)
-622 six hundred and twenty-two (AmE: six hundred twenty-two)
Numbers between 1000 and 1,000,000 is usually said or written in words as:
-1,803 one thousand, eight hundred and three (AmE: one thousand, eight hundred three)
-1,963 one thousand, nine hundred and sixty-three (AmE: one thousand, nine hundred sixty-three)
Four-figure numbers ending in 00 can also be said or written as a number of hundreds. For example, 1800 can be said or written as "eighteen hundred"
Saying years. We normally say a year in two parts. In the case of years ending in "00", we say the second part in "hundred":
1058 ten fifty-eight
1706 seventeen hundred and six (or 'seventeen oh six')
1865 eighteen sixty-five
1900 nineteen hundred
Cardinal numbers
0 zero
1 one
2 two
3 three
4 four
5 five
6 six
7 seven
8 eight
9 nine
10 ten
11 eleven
12 twelve
13 thirteen
14 fourteen
15 fifteen
16 sixteen
17 seventeen
18 eighteen
19 nineteen
20 twenty
21 twenty-one
30 thirty
40 forty
50 fifty
60 sixty
70 seventy
80 eighty
90 ninety
100 a/one hundred
1,000 a/one thousand
10,000 ten thousand
100,000 a/one hundred thousand
1,000,000 a/one million
1,000,000,000 a/one billion
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