# Roman numerals

 Roman numerals are a numeral system that originated in ancient Rome and were used throughout the Roman Empire. They are still used today in various contexts, such as for numbering pages in a preface, for numbering certain chapters or volumes in books, for designating the year of a significant event, and for naming monarchs and popes. The Roman numeral system uses a combination of letters to represent numerical values. The basic symbols are I, V, X, L, C, D, and M, which respectively represent the numbers 1, 5, 10, 50, 100, 500, and 1,000. These symbols can be combined to represent any number, with certain rules governing their use. Roman numerals are a number system developed in ancient Rome where letters represent numbers.
Here is a table showing the basic Roman numeral symbols and their corresponding numerical values:

Symbols - Roman numerals Numerical Values
I 1
V 5
X 10
L 50
C 100
D 500
M 1000

For example, when a smaller numeral appears before a larger numeral, it is subtracted from the larger numeral. For instance, IV represents 4 (5 minus 1), while IX represents 9 (10 minus 1). Conversely, when a smaller numeral appears after a larger numeral, it is added to the larger numeral. For instance, XI represents 11 (10 plus 1), while XV represents 15 (10 plus 5).

## Roman Numerals from 1 to 100

Number Roman Numeral
1 I
2 II
3 III
4 IV
5 V
6 VI
7 VII
8 VIII
9 IX
10 X
11 XI
12 XII
13 XIII
14 XIV
15 XV
16 XVI
17 XVII
18 XVIII
19 XIX
20 XX
21 XXI
22 XXII
23 XXIII
24 XXIV
25 XXV
26 XXVI
27 XXVII
28 XXVIII
29 XXIX
30 XXX
31 XXXI
32 XXXII
33 XXXIII
34 XXXIV
35 XXXV
36 XXXVI
37 XXXVII
38 XXXVIII
39 XXXIX
40 XL
41 XLI
42 XLII
43 XLIII
44 XLIV
45 XLV
46 XLVI
47 XLVII
48 XLVIII
49 XLIX
50 L
51 LI
52 LII
53 LIII
54 LIV
55 LV
56 LVI
57 LVII
58 LVIII
59 LIX
60 LX
61 LXI
62 LXII
63 LXIII
64 LXIV
65 LXV
66 LXVI
67 LXVII
68 LXVIII
69 LXIX
70 LXX
71 LXXI
72 LXXII
73 LXXIII
74 LXXIV
75 LXXV
76 LXXVI
77 LXXVII
78 LXXVIII
79 LXXIX
80 LXXX
81 LXXXI
82 LXXXII
83 LXXXIII
84 LXXXIV
85 LXXXV
86 LXXXVI
87 LXXXVII
88 LXXXVIII
89 LXXXIX
90 XC
91 XCI
92 XCII
93 XCIII
94 XCIV
95 XCV
96 XCVI
97 XCVII
98 XCVIII
99 XCIX
100 C

## Examples

Here are five examples of Roman numerals with their corresponding values in decimal form and explanations on how to read them:

IV = 4
The letter "I" represents 1 and the letter "V" represents 5. When a smaller numeral appears before a larger numeral, it is subtracted. So "IV" means "1 less than 5", which is 4.

XII = 12
The letter "X" represents 10 and the letter "I" represents 1. When a smaller numeral appears after a larger numeral, it is added. So "XII" means "10 plus 1 plus 1", which is 12.

XXV = 25
The letter "X" represents 10 and the letter "V" represents 5. When multiple numerals of the same value appear together, they are added. So "XXV" means "10 plus 10 plus 5", which is 25.

XLVII = 47
The letter "X" represents 10, the letter "L" represents 50, the letter "V" represents 5, and the letter "I" represents 1. When a smaller numeral appears before a larger numeral, it is subtracted. So "XL" means "10 less than 50", which is 40. Then "VII" means "5 plus 1 plus 1", which is 7. So "XLVII" means "40 plus 5 plus 1 plus 1", which is 47.

LXXXIII = 83
The letter "L" represents 50, the letter "X" represents 10, and the letter "I" represents 1. When multiple numerals of the same value appear together, they are added. So "XXX" means "10 plus 10 plus 10", which is 30. Then "III" means "1 plus 1 plus 1", which is 3. So "LXXXIII" means "50 plus 10 plus 10 plus 10 plus 1 plus 1 plus 1", which is 83.

Here are five examples of converting numbers to Roman numerals with explanations:

16 = XVI
To convert the number 16 to Roman numerals, we can break it down into its component parts: 10 and 6. The letter "X" represents 10, and the letter "VI" represents 6. So "XVI" means "10 plus 6", which is 16.

27 = XXVII
To convert the number 27 to Roman numerals, we can break it down into its component parts: 20 and 7. The letter "XX" represents 20, and the letter "VII" represents 7. So "XXVII" means "20 plus 7", which is 27.

44 = XLIV
To convert the number 44 to Roman numerals, we can break it down into its component parts: 40 and 4. The letter "XL" represents 40, and the letter "IV" represents 4. So "XLIV" means "40 plus 4", which is 44.

99 = XCIX
To convert the number 99 to Roman numerals, we can break it down into its component parts: 90 and 9. The letter "XC" represents 90, and the letter "IX" represents 9. So "XCIX" means "90 plus 9", which is 99.

2022 = MMXXII
To convert the number 2022 to Roman numerals, we can break it down into its component parts: 2000, 20, and 2. The letter "M" represents 1000, so two "M"s represent 2000. The letter "XX" represents 20, and the letter "II" represents 2. So "MMXXII" means "2000 plus 20 plus 2", which is 2022.