Summarize this article:
Last updated on September 27, 2025
Roman Numerals are symbols derived from Latin letters used by Romans for daily transactions and counting purposes. In this topic, we will learn how to write Roman Numerals and their uses, focusing on numbers from 10000 to 20000.
Roman Numerals use symbols to represent number systems. Ancient Romans used the letters I, V, X, L, C, D, and M to represent numbers.
For larger numbers, a bar over the numeral indicates that it should be multiplied by 1,000. This is how we extend Roman Numerals to represent numbers like 10000 or 20000.
Roman numbers are used today in various contexts, such as in formal documents and historic numbering. The following chart helps us to understand the numerals better. List of Roman Numerals 10000 to 20000 The list of Roman Numerals provides an organized way to understand how those letters combine to represent a number.
Learning these numerals helps you in a deeper understanding of the numerical system.
Roman Numerals from 10000 to 11000
Roman Numerals from 11001 to 12000
Roman Numerals from 12001 to 13000
Roman Numerals from 13001 to 14000
Roman Numerals from 14001 to 15000
Roman Numerals from 15001 to 16000
Roman Numerals from 16001 to 17000
Roman Numerals from 17001 to 18000
Roman Numerals from 18001 to 19000
Roman Numerals from 19001 to 20000
Roman Numerals rely on specific symbols, and it has rules of addition and subtraction. The basic symbols in Roman Numerals are: I = 1 V = 5 X = 10 L = 50 C = 100 D = 500 M = 1000
For larger numbers, a line over the numeral indicates multiplication by 1,000. For example, X̅ = 10,000.
Through the expansion method, we break down the numbers into thousands, hundreds, tens, and ones parts, then convert them into numerals.
Step 1: Break the numbers into thousands, hundreds, tens, and ones parts.
Step 2: Write Roman Numerals for each part.
Step 3: Combine all the parts to get the numerals.
Example: For the number 19500.
Step 1: Break the numbers 10000 + 9000 + 500 = 19500
Step 2: Add Roman Numerals for each part The Roman Numeral of 10000 is X̅. The Roman Numeral of 9000 is I̅X̅. The Roman Numeral of 500 is D.
Step 3: Combine all the parts 10000 (X̅) + 9000 (I̅X̅) + 500 (D) = X̅I̅X̅D. Therefore, the Roman Numeral of 19500 is X̅I̅X̅D.
Grouping method directly from the number by combining Roman Numeral symbols. It uses addition and subtraction rules.
Step 1: Start writing numerals for the largest number.
Step 2: Smaller numbers are either getting added or subtracted.
Following the rule of adding and subtraction is mandatory.
Addition: smaller numeral after the larger numeral.
Subtraction: smaller numeral before the large numeral. Example: For the number 12000.
Step 1: Start with the larger numbers. While splitting, we will get 10000 and 2000 The Roman Numeral of 10000 is X̅
Step 2: Add or subtract the smaller number The Roman Numeral of 2000 is MM Therefore, the Roman Numeral of 12000 is X̅MM.
Roman Numerals follow rules to ensure numbers are written correctly. Here are some main rules:
In Roman Numerals, if the smaller numeral comes after the large numeral, add their values. Example: If the given number is XII. The number X refers to 10, and the other numbers refer to 2. So, the smaller numeral is after the large numeral, so we need to add 10 and 2 to get the value 12.
A Roman Numeral can be repeated up to three times to increase its value. Only symbols like I, X, C, and M can be repeated, whereas V, L, and D cannot. Example: XXX = 10 + 10 + 10 = 30. Repeating the numeral X for the fourth time is not allowed.
If the smaller numeral comes before the large numeral, subtract the smaller numeral from the larger numeral. There are three rules in subtraction: I can be subtracted from V and X. X can be subtracted from L and C. C can be subtracted from D and M. Example: In the number IX. Here, X is the largest numeral, and I is the smallest. As we see that the smaller numeral is before the larger numeral, we subtract to get the number. X (10) - I (1) = IX (9).
Roman Numerals have limitations: A numeral cannot be repeated more than three times. For example, III (3) cannot be repeated more than 3 times, instead we use IV for writing 4. Subtraction cannot be done with non-pair numbers. For example, XI here X (10) - I(1) gives IX is applicable, but IC, C (100) - I(1), is not applicable. Only one subtraction can be allowed in one numeral. For example, XL (40), L (50) - X (10), is applicable to get 40, but XXL is not applicable to get the number 30.
Roman Numerals are fun to learn and easy to write when you know the following tips and tricks:
It is easy to make mistakes while learning Roman Numerals, but using the following mistakes and the ways to avoid them can help you avoid those mistakes.
Write the Roman Numerals for 15000 using the breakdown method.
The Roman Numeral of 15000 is X̅V̅.
Step 1: Break the numbers into thousands. 15000 = 10000 + 5000
Step 2: Add numerals to each part. The Roman Numeral of 10000 is X̅. The Roman Numeral of 5000 is V̅.
Step 3: Combine the parts 10000 (X̅) + 5000 (V̅) = X̅V̅ (15000).
Add X̅ + V̅.
X̅V̅
Adding X̅ (10000) and V̅ (5000) = X̅V̅ (15000).
Subtract X̅V̅ - V̅.
X̅
X̅V̅ = 15000 V̅ = 5000 15000 - 5000 = 10000 = X̅.
Write the Roman Numeral of 20000.
X̅X̅
The Roman Numeral of 20000 is X̅X̅.
Add 17000 + 2000 and write the answer in Roman Numeral.
X̅V̅II̅.
17000 + 2000 = 19000 X̅VII̅ = X̅V̅II̅.
Hiralee Lalitkumar Makwana has almost two years of teaching experience. She is a number ninja as she loves numbers. Her interest in numbers can be seen in the way she cracks math puzzles and hidden patterns.
: She loves to read number jokes and games.