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Numbers (1-100)
Counting to 100 follows a pattern in English once the basic units are learned:

1 one 11 eleven
2 two 12 twelve
3 three 13 thirteen
4 four 14 fourteen
5 five 15 fifteen
6 six 16 sixteen
7 seven 17 seventeen
8 eight 18 eighteen
9 nine 19 nineteen
10 ten 20 twenty
21 twenty-one 57 fifty-seven
22 twenty-two 60 sixty
30 thirty 68 sixty-eight
33 thirty-three 70 seventy
34 thirty-four 79 seventy-nine
40 forty 80 eighty
45 forty-five 90 ninety
46 forty-six 99 ninety-nine
50 fifty 100 one hundred
Note that to count from 20-99, all you have to do is add a hyphen (-) and the second number: 33 = thirty + (-) + three.
Numbers (101 - 1,000,000)
Here's the system for counting from 100-999:
-- number + hundred + number
(650= six hundred fifty)
1000-99,999:
--number + thousand + number + hundred + number
(7,888 = seven thousand eight hundred eighty-eight)
100,000-999,999:
--number + hundred + thousand + number + hundred + number
(565,332 = five hundred sixty-five thousand three hundred thirty-
two)
NOTE: Follow the same system for numbers exceeding one million.
1,000,000 = one million
1,000,000,000 = one billion

Ordinal Numbers
To form an ordinal number (ordinal numbers put things in order), add the ending -th to the cardinal number.
seven-->seventh
thirteen-->thirteenth
When a cardinal number ends in -y, the -y changes to -ie before adding -th.
twenty-->twentieth
sixty-->sixtieth
Note the following exceptions: first, second, third (sometimes abbreviated as 1st, 2nd, 3rd) and fifth, ninth, twelfth.
twenty-first
forty-third
sixty-fifth
All others are abbreviated as follows: 4th, 5th, 20th, etc.