105 in Roman numerals is written as CV, an ancient method used by the Romans to display numbers. In this form, C means 100 and V means 5, which together make 105 (100 + 5). Understanding how to read and write 105 in Roman numerals helps students connect mathematics. It also improves logical thinking by teaching them how values are combined to form larger numbers. The study of CV is not only a mathematical skill but also a link to the past, which makes number study more interesting and meaningful in everyday life.
To write 105 in Roman numerals, we use the symbols that represent tens and units. The principal Roman numeral symbols are:
Add them: 100 + 5 = 105
Therefore, 105 in Roman numerals is CV.
To write 105 in Roman numerals, students should follow these simple rules based on the Roman numeral system:
I = 1
V = 5
X = 10
L = 50
C = 100
D = 500
M = 1000
Letters I, X, and C can be repeated up to three times. For 105, we use C (100) once and V (5) once.
Write the largest numeral first. For 105, write C (for 100) followed by V (for 5).
 When a smaller symbol follows a larger one, add their values.
So, C (100) + V (5) = CV (105).
Since 105 doesn’t require subtraction like IV (4) or IX (9), simply add the numeral values.
Therefore, 105 in Roman numerals is CV.


Example 1: A shelf held L (50) books, and another had LV (55). Express the total in Roman numerals.
Solution:
50 + 55 = 105
Therefore, 105 = CV.
Example 2: Add XC (90) and XV (15). Write the total in Roman numerals.
Solution:
90 + 15 = 105
Therefore, 105 = CV.
Example 3: Subtract V (5) from CX (110). Express the result in Roman numerals.
Solution:
110 − 5 = 105
Therefore, 105 = CV.
Example 4: Multiply XV (15) by VII (7). Write the answer in Roman numerals.
Solution:
15 × 7 = 105
Therefore, 105 = CV.
Example 5: What is the sum of C (100) and V (5)? Write the result in Roman numerals.
Solution:
100 + 5 = 105
Therefore, 105 = CV.
Roman Numeral: 105 is written as CV (100 + 5).
Symbol Set: Only two symbols are used, C and V.
No Subtraction Needed: 105 doesn’t need forms like IV or IX; it’s pure addition.
Decomposition: C = 100, V = 5 (100 + 5) = 105.
Number Property: 105 is an odd composite number; divisors include 1, 3, 5, 7, 15, 21, 35, and 105.
How do you write the number 105 using Roman numerals?
What are the Roman numerals for 101, 102, 103, 104, and 106?
Convert the Roman numeral CV into the regular decimal number.
Calculate CV + V and write your answer in Roman numerals.
Add XC and XV together and express the total as a Roman numeral.
In Roman numerals, 105 is written as CV by combining C (which represents 100) and V (which represents 5). This is a simple example that helps students understand how Roman numerals are used similarly to creating numbers. Learning it also makes it easier to read and write different Roman numerals.
105 in Roman numerals is CV.
Explanation:
C = 100
V = 5
So, 100 + 5 = 105 → CV
Roman numerals are combined by adding the values of symbols written from left to right in descending order.
Since both C (100) and V (5) are in descending order, they are added:
C + V = 105
| 
 Number  | 
 Roman Numeral  | 
| 
 101  | 
 CI  | 
| 
 102  | 
 CII  | 
| 
 103  | 
 CIII  | 
| 
 104  | 
 CIV  | 
| 
 105  | 
 CV  | 
| 
 106  | 
 CVI  | 
| 
 107  | 
 CVII  | 
| 
 108  | 
 CVIII  | 
| 
 109  | 
 CIX  | 
| 
 110  | 
 CX  | 
Step 1: Break 105 into parts → 100 + 5
Step 2: Write 100 as C
Step 3: Write 5 as V
Step 4: Combine them → CV
Therefore, 105 in Roman Numerals = CV
Let’s calculate step by step:
210 − 105 = 105
Therefore, the answer is CV (105 in Roman numerals)
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