English numbers
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
30 thirty
40 forty
50 fifty
60 sixty
70 seventy
80 eighty
90 ninety
100 a/one hundred
1,000 a/one thousand
1,000,000 a/one million
1,000,000,000 a billion
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If a number is in the range 21 to 99:
21 twenty-one
22 twenty-two
23 twenty-three
24 twenty-four
25 twenty-five
26 twenty-six
27 twenty-seven
28 twenty-eight
29 twenty-nine
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hundreds:
100 one hundred
200 two hundred …
… 900 nine hundred
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thousands:
1,000 one thousand
2,000 two thousand …
… 10,000 ten thousand
11,000 eleven thousand …
… 20,000 twenty thousand
21,000 twenty-one thousand
30,000 thirty thousand
85,000 eighty-five thousand
100,000 one hundred thousand
999,000 nine hundred ninety-nine thousand
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Very large numbers:
1,000,000 one million
1,000,000,000 one billion / a thousand million / one milliard
1,000,000,000,000 one trillion /a thousand billion
1,000,000,000,000,000 one quadrillion / a thousand trillion
1,000,000,000,000,000,000 one quintillion / a thousand quadrillion
1,000,000,000,000,000,000,000 1021 one sextillion / a thousand quintillion
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