Comprehensive Guide to Roman Numerals: Understanding and Converting

Roman Numerals 1 to 100

Introduction to Roman Numerals 1 to 100

Roman numerals are a way of representing numbers using letters from the Latin alphabet. Learning Roman numerals from 1 to 100 helps students understand and convert numbers into Roman numeral format. Here, we’ll go through the rules and provide a complete list of Roman numerals from 1 to 100.

List of Roman Numerals 1 to 100

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

How to Write Roman Numerals from 1 to 100?

There are two methods to write Roman numerals:

Method 1: Breaking Down the Number:
Break the number into parts, write their Roman numeral equivalents, and add them.
Example: 65 = 50 + 10 + 5 = L + X + V = LXV

Method 2: Grouping Numbers:
Group the numbers and then add the Roman numerals.
Example: 65 = 60 + 5 = LX + V = LXV

Rules for Writing Roman Numerals

Addition Rule: When a larger letter precedes a smaller letter, add them.
Example: CX = 100 + 10 = 110
Subtraction Rule: When a smaller letter precedes a larger letter, subtract the smaller from the larger.
Example: IV = 5 – 1 = 4
Repetition Rule: Letters can be repeated up to three times to add their values.
Example: XXX = 10 + 10 + 10 = 30
Non-Repetition Rule: Letters V, L, and D cannot be repeated.

Examples of Roman Numerals Calculations

Example 1: Find the product of XVIII and LXX
- XVIII = 18, LXX = 70
- 18 × 70 = 1260
- 1260 = MCCLX
Example 2: Find the value of LXXVII – XIII
- LXXVII = 77, XIII = 13
- 77 – 13 = 64
- 64 = LXIV
Example 3: What is the value of LXVI?
- LXVI = 66