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In this week’s lesson, we’re going begin discussing the words used to express and count numbers in English. We’ll be breaking these words down into manageable chunks, explaining each group of numbers before moving on to the next.

 

0 to 20

The numbers 0 through 20 twenty have their own unique count words. The table below lists each Arabic numeral, followed by its equivalent English word. Some numbers have alternate or informal designations. These are included in parentheses.

 

0 Zero (none, naught) 7 Seven 14 Fourteen
1 One 8 Eight 15 Fifteen
2 Two (a couple) 9 Nine 16 Sixteen
3 Three (a few) 10 Ten 17 Seventeen
4 Four (a few) 11 Eleven 18 Eighteen
5 Five 12 Twelve (a dozen) 19 Nineteen
6 Six (a half-dozen) 13 Thirteen (a baker’s dozen) 20 Twenty

 

21 to 99

As with 0 to 20, the words for 30, 40, 50, 60, 70, 80, and 90 are unique:

 

20 Twenty 60 Sixty
30 Thirty 70 Seventy
40 Forty 80 Eighty
50 Fifty 90 Ninety

 

To count two digit numbers above 20, combine the words we have learned so far. Connect the words with a hyphen. For example:

 

21 Twenty-one
33 Thirty-three
45 Forty-five
67 Sixty-Seven
84 Eighty-four
99 Ninety-nine

 

100 to 999

Multiples of 100 are counted by the word “hundred” preceded by the appropriate 1-9 word:

100 One hundred 600 Six hundred
200 Two hundred 700 Seven hundred
300 Three hundred 800 Eight hundred
400 Four hundred 900 Nine hundred
500 Five hundred

 

To express numbers ranging from 100 to 999, combine the words we have learned up to this point. An optional “and” can be included for clarity. This is more common in UK English than in American English:

 

101 One hundred (and) one 589 Five hundred (and) eighty-nine
123 One hundred (and) twenty-one 642 Six hundred (and) forty-two
230 Two hundred (and) thirty 708 Seven hundred (and) eight
365 Three hundred (and) sixty-five 886 Eight hundred (and) eighty-six
457 Four hundred (and) fifty-seven 999 Nine hundred (and) ninety-nine

 

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