18 in Roman Numerals
18 in Roman numerals is XVIII. To convert 18 in Roman Numerals, we will write 18 in the expanded form, i.e. 18 = 10 + 5 + 1 + 1 + 1 thereafter replacing the transformed numbers with their respective roman numerals, we get 18 = X + V + I + I + I = XVIII. In this article, we will explain how to correctly transform 18 in Roman numerals.
 18 = 10 + 5 + 1 + 1 + 1
 Roman Numerals = X + V + I + I + I
 18 in Roman Numerals = XVIII
1.  How to Write 18 in Roman Numerals? 
2.  Basic Rules 
3.  Numbers related to 18 
4.  FAQs on 18 in Roman Numerals 
How to Write 18 in Roman Numerals?
Roman numerals for 18 can be obtained by using the method given below:
In this method, we break 18 into the least expandable form, write their respective roman letter and add/subtract them, i.e. 18 = 10 + 5 + 1 + 1 + 1 = X + V + I + I + I = XVIII.
Therefore, the value of 18 in roman numerals is XVIII.
ā Also Check: Roman Numerals Calculator
Basic Rules to Interpret Roman Numerals
 When a bigger letter precedes a smaller letter, the letters are added. For example: CI, C > I, so CI = C + I = 100 + 1 = 101.
 When a smaller letter precedes a bigger letter, the letters are subtracted. For example: XC, X < C, so XC = C  X = 100  10 = 90.
 When a letter is repeated multiple times, they get added. For example: CC = C + C = 100 + 100 = 200
 The same letter cannot be used more than three times in succession.
Roman Numerals for Numbers Related to 18
Roman numerals may seem different from numbers, but they are similar. For example, 18 in roman numerals is equivalent to XVIII. The roman numerals for numbers related to 18 are given below:
 X = 10
 XI = 10 + 1 = 11
 XII = 10 + 2 = 12
 XIII = 10 + 3 = 13
 XIV = 10 + 4 = 14
 XV = 10 + 5 = 15
 XVI = 10 + 6 = 16
 XVII = 10 + 7 = 17
 XVIII = 10 + 8 = 18
 XIX = 10 + 9 = 19
18 in Roman Numerals Examples

Example 1: Find the Value of (10  26) + 18 in roman numerals.
Solution:
Solving (10  26) + 18 = 16 + 18 = 2. Now, we will write the answer, that is, 2 = II.

Example 2: Find the Difference Between 45 and 18 in Roman Numerals.
Solution:
Solving the given problem, 45  18 = 27
To determine the value of 45  18 in roman numerals, we will express 27 in the expanded form, i.e., 27 = 20 + 7 = XX + VII = XXVII. 
Example 3: What is the remainder when XVIII is divided by XII?
Solution:
XII = 12 and XVIII = 18 in numbers.
On dividing 18 by 12, it leaves a remainder of 6.
Now, 6 = VI
Therefore, when XVIII is divided by XII, the remainder is VI. 
Example 4: Find the value of 3251  18.
Solution:
Solving the given problem, 3251  18 = 3233
To determine the value of 3251  18 in roman numerals, we will express 3233 in the expanded form, i.e. 3233 = 3000 + 200 + 30 + 3 = MMM + CC + XXX + III = MMMCCXXXIII.
FAQs on 18 in Roman Numerals
What does 18 in Roman Numerals Mean?
To write 18 in roman numerals, we will first express 18 in expanded form. 18 = 10 + 5 + 1 + 1 + 1 = X + V + I + I + I = XVIII. Hence, 18 in roman numbers is expressed as XVIII.
What is the Value of (23  27) + 18 in Roman Numbers?
Solving (23  27) + 18 = 4 + 18 = 14. To express, (23  27) + 18 in roman numerals, we will write the answer, that is, 14 in expanded form. 14 = 10 + 5  1 = X + V  I = XIV
What Should be Added to 8 to Get 18? Write the answer in Roman numerals.
18 in roman numerals is XVIII whereas 8 is VIII. 18  8 = 10. Therefore, 10 should be added to 8 to get 18. Now, to convert 10 in roman numbers, we will express it as 10 = X.
What is the Value of 18 in Roman Numerals?
To convert 18 in roman numerals, the conversion involves breaking the numbers based on place values (ones, tens, hundreds, thousands).
 Tens = 10 = X
 Ones = 8 = VIII
 Number = 10 + 8 = X + VIII = XVIII
Why is 18 in Roman Numerals Written as XVIII?
We know that in roman numerals, we write 8 as VIII, and 10 as X. Therefore, 18 in roman numerals is written as 18 = 10 + 8 = X + VIII = XVIII.
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