A Playground of Thoughts > Number Systems of the World > The Number System of English

The Number System of English


NumberReadingMeaning
0zero0
1one1
2two2
3three3
4four4
5five5
6six6
7seven7
8eight8
9nine9
10ten10
11eleven11
12twelve12
13thirteen3* + 10*
14fourteen4 + 10*
15fifteen5* + 10*
16sixteen6 + 10*
17seventeen7 + 10*
18eighteen8 + 10*
19nineteen9 + 10*
20twenty2* × 10
21twenty-one2* × 10 + 1
22twenty-two2* × 10 + 2
23twenty-three2* × 10 + 3
24twenty-four2* × 10 + 4
25twenty-five2* × 10 + 5
26twenty-six2* × 10 + 6
27twenty-seven2* × 10 + 7
28twenty-eight2* × 10 + 8
29twenty-nine2* × 10 + 9
30thirty3* × 10
31thirty-one3* × 10 + 1
32thirty-two3* × 10 + 2
33thirty-three3* × 10 + 3
34thirty-four3* × 10 + 4
35thirty-five3* × 10 + 5
36thirty-six3* × 10 + 6
37thirty-seven3* × 10 + 7
38thirty-eight3* × 10 + 8
39thirty-nine3* × 10 + 9
40forty4* × 10
41forty-one4* × 10 + 1
42forty-two4* × 10 + 2
43forty-three4* × 10 + 3
44forty-four4* × 10 + 4
45forty-five4* × 10 + 5
46forty-six4* × 10 + 6
47forty-seven4* × 10 + 7
48forty-eight4* × 10 + 8
49forty-nine4* × 10 + 9
50fifty5* × 10
51fifty-one5* × 10 + 1
52fifty-two5* × 10 + 2
53fifty-three5* × 10 + 3
54fifty-four5* × 10 + 4
55fifty-five5* × 10 + 5
56fifty-six5* × 10 + 6
57fifty-seven5* × 10 + 7
58fifty-eight5* × 10 + 8
59fifty-nine5* × 10 + 9
60sixty6 × 10
61sixty-one6 × 10 + 1
62sixty-two6 × 10 + 2
63sixty-three6 × 10 + 3
64sixty-four6 × 10 + 4
65sixty-five6 × 10 + 5
66sixty-six6 × 10 + 6
67sixty-seven6 × 10 + 7
68sixty-eight6 × 10 + 8
69sixty-nine6 × 10 + 9
70seventy7 × 10
71seventy-one7 × 10 + 1
72seventy-two7 × 10 + 2
73seventy-three7 × 10 + 3
74seventy-four7 × 10 + 4
75seventy-five7 × 10 + 5
76seventy-six7 × 10 + 6
77seventy-seven7 × 10 + 7
78seventy-eight7 × 10 + 8
79seventy-nine7 × 10 + 9
80eighty8 × 10
81eighty-one8 × 10 + 1
82eighty-two8 × 10 + 2
83eighty-three8 × 10 + 3
84eighty-four8 × 10 + 4
85eighty-five8 × 10 + 5
86eighty-six8 × 10 + 6
87eighty-seven8 × 10 + 7
88eighty-eight8 × 10 + 8
89eighty-nine8 × 10 + 9
90ninety9 × 10
91ninety-one9 × 10 + 1
92ninety-two9 × 10 + 2
93ninety-three9 × 10 + 3
94ninety-four9 × 10 + 4
95ninety-five9 × 10 + 5
96ninety-six9 × 10 + 6
97ninety-seven9 × 10 + 7
98ninety-eight9 × 10 + 8
99ninety-nine9 × 10 + 9
100one hundred1 × 100

* Different form
† Different word


Note:
NumberReadingMeaning
200two hundred2 × 100
300three hundred3 × 100
1000one thousand1 × 1000
1100one thousand one hundred1 × 1000 + 1 × 100
eleven hundred11 × 100
1200one thousand two hundred1 × 1000 + 2 × 100
twelve hundred12 × 100
2000two thousand2 × 1000
2100two thousand one hundred2 × 1000 + 1 × 100
twenty-one hundred(2* × 10 + 1) × 100

You can divide a four-digit number into two two-digit numbers and combining them using hundred, and it is common for numbers 1100 through 1999. You cannot divide a number if it is a multiple of 1000. The number 2000 is always read "two thousand," never "twenty hundred."

The number 1976 is read as follows:

onethousandninehundredseventy-six
1×1000+9×100+(7 × 10+6)

or

nineteenhundredseventy-six
(9 + 10*)×100+(7 × 10+6)

There are poetic number names for multiples of twenty.

NumberReadingMeaning
20score20
40twoscore2 × 20
60threescore3 × 20
80fourscore4 × 20
100fivescore5 × 20
120sixscore6 × 20
140sevenscore7 × 20
160eightscore8 × 20
180ninescore9 × 20
200tenscore10 × 20

ex. 87 = fourscore and seven.


There are also commercial or historical number names for multiples of twelve.

NumberReadingMeaning
6half dozen½ × 12
12dozen12
13baker's dozenbaker's 12
long dozenlong 12
72half gross½ × 144
120long hundredlong 100 (12 × 10)
144gross144 (122)
156long grosslong 144 (12 × 13)
1200long thousandlong 1000 (12 × 102)
1728great gross1728 (123)


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