Last updated on May 26th, 2025
To meet their daily commerce and administration needs, the ancient Romans developed Roman Numerals. It used a combination of seven symbols — I, V, X, L, C, D, and M to represent numbers. Roman numerals were used to record transactions, keep track of data, and label military units. In this topic, we are going to learn about the Roman numeral MMMXXV.
Ancient Romans discovered that counting fingers could get very complicated after 10. To overcome this complexity, the Roman numeric system was developed.
It was widely used throughout Europe as a standard writing system until the late Middle Ages. Seven symbols are used to represent numbers in the Roman numeric system — I, V, X, L, C, D, and M.
The numerals are made up of different combinations of these symbols. MMMXXV in Roman numerals can be written in number form by adding the values of each Roman numeral, i.e., MMMXXV = 3025.
Let us learn more about the Roman numeral MMMXXV, how we write it, the common mistakes, and ways to avoid these mistakes.
When writing Roman numerals, there are a few rules that we need to follow based on the Roman numerals we are trying to write. In this section, we will learn about the rules when writing Roman numerals and how to represent them.
When a larger symbol is followed by a smaller symbol, we add the numerals to each other. For example, in VIII, we have 5 + 3 = 8.
A symbol that is repeated up to three times in continuation increases the value of the numeral. For example, XXX = 30.
We use the subtraction method when a smaller symbol precedes a larger symbol. For example, XL = 40 (which is 50 – 10).
Symbols cannot be repeated more than three times, and some symbols, such as V, L, and D, cannot be repeated more than once. For example, 10 is represented as X and not VV.
Let us learn about how to write MMMXXV in Roman numerals. There are two methods that we can use to write Roman numerals:
The expansion method involves breaking down Roman numerals into parts and then converting them into numerals to get the final number.
Step 1: Break the Roman numerals into parts.
Step 2: Write each of the Roman numerals with its numerical digit in the place value.
Step 3: Add the numerals together. For MMMXXV,
Step 1: First, break the Roman numerals. MMMXXV = M + M + M + X + X + V
Step 2: Write the Roman Numerals for each part. The Roman Numeral M is 1000 The Roman Numeral X is 10 The Roman Numeral V is 5
Step 3: Combine all the numbers. M + M + M + X + X + V = 1000 + 1000 + 1000 + 10 + 10 + 5 = 3025. Therefore, the Roman Numeral MMMXXV is 3025.
Using subtraction and addition rules, we will apply the grouping method. This means we break the Roman numerals into smaller groups, which makes it easier to work with. This method groups the Roman numerals logically, and then we write the numbers for each group.
Step 1: Take the largest number and write the number for that Roman numeral.
Step 2: Write the Roman numeral using the subtraction and addition rules. Example: Let’s take the Roman numeral MMMXXV.
Step 1: Begin with the larger Roman numerals. Once split, the Roman numerals we get are MMM, XX, and V. The numeral for MMM is 3000.
Step 2: Now add the smaller numbers to the larger group. Here, we add XX and V to MMM, and we get MMMXXV. The Roman numeral XX is 20, and V is 5. Therefore, the numeral of MMMXXV is 3025.
Students can make mistakes when studying Roman numerals. Here are a few common mistakes students make and ways to avoid them.
If a Roman sculpture was crafted in the year MMX and restored in MMXV, how many years passed between these events? Write the answer in Roman numerals.
The number of years is V.
Convert the Roman numerals into their decimal form: MMX = 2010
MMXV = 2015
Subtract the earlier year from the later year: 2015 - 2010 = 5
Convert the number into its Roman numeral: 5 = V
A historian discovers a manuscript dated MCMXXV and another one dated MDCCCXXV. How many years apart are these manuscripts? Write the answer in Roman numerals.
The manuscripts are C years apart.
Convert the Roman numerals into their decimal form: MCMXXV = 1925
MDCCCXXV = 1825
Subtract the earlier year from the later year: 1925 - 1825 = 100
Convert the number into its Roman numeral: 100 = C
A Roman aqueduct was built over a period of XII years, starting in the year MCCXVIII. In what year was it completed? Write the answer in Roman numerals.
The aqueduct was completed in the year MCCXXX.
Convert the starting year into its decimal form: MCCXVIII = 1218
Add the construction period: 1218 + 12 = 1230
Convert the completion year into its Roman numeral: 1230 = MCCXXX
A Roman vase is sold for DCCLXXV denarii, and the buyer pays with a coin worth MM denarii. How much change should the buyer receive? Write the answer in Roman numerals.
The buyer should receive MCCXXV denarii in change.
Convert the Roman numerals into their decimal form: DCCLXXV = 775
MM = 2000
Subtract the cost of the vase from the coin value: 2000 - 775 = 1225
Convert the change amount into its Roman numeral: 1225 = MCCXXV
Convert the year MMMXXV into its decimal form.
In decimal form, MMMXXV is 3025.
Break MMMXXV into components: MMM = 3000
XX = 20
V = 5
Add the values: 3000 + 20 + 5 = 3025
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.