What's the largest number you can write with the seven basic symbols?

With the seven basic symbols (I, V, X, L, C, D, M) and no extra marks, Roman numerals can write up to 3,999, which is MMMCMXCIX. For numbers beyond that, the Romans used a line above a letter to multiply its value by a thousand, but this is rarely taught in primary school since everyday needs are covered by Roman numerals 1-1000.

What grade do Indonesian kids start learning Roman numerals?

Under Kurikulum Merdeka, Roman numerals are generally introduced in Grade 4, alongside material on number symbols and place value. The prerequisite is that a child is already fluent in two-to-three-digit addition and subtraction, since the addition-subtraction logic in Roman numerals uses similar thinking. Kids whose basic operations are still shaky should strengthen those first before moving to Roman numerals.

What's the easiest way for a child to memorize Roman numerals?

The easiest way isn't memorizing the symbol for every number one by one, but memorizing the seven base values (I=1, V=5, X=10, L=50, C=100, D=500, M=1000) plus the two addition-subtraction rules. After that, a child can build any number on their own. Regular practice with cards, a calendar, or writing their age and the date in Roman numerals for 10 minutes a few times a week is usually enough for a Grade 4-6 child.

Math Education

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Roman Numerals 1-1000: Full Table & How to Read Them

Published: 25.07.2026·Updated: 25.07.2026

Dewi Lestari

Mathematics Specialist

Roman Numerals 1-1000: Full Table & How to Read Them

Roman numerals are the Ancient Roman number system built from seven letters, I, V, X, L, C, D, and M, used to write every number from 1 up past 1000. Once a child memorizes the value of these seven letters plus the two writing rules (addition and subtraction), they can read or write any Roman numeral without memorizing a table one entry at a time. This guide gives you the full 1-1000 Roman numeral table, a step-by-step reading method, and worked examples for children aged 8-12.

Algonova is an online course platform for coding, math, AI, and design for kids aged 5-17, with 600,000+ alumni across 90+ countries since 2016. Classes are held live with certified teachers in groups of up to 6 students, not pre-recorded videos.

What Are Roman Numerals and What Are the Basic Rules?

Roman numerals are the numbering system Ancient Rome used before the Arabic numerals (0-9) we use today spread across Europe. The system has no zero and no place value like the ones-tens-hundreds system we're used to. A number's value is built from a combination of seven letter symbols, each with a fixed value.

The seven basic symbols:

Letter	Value
I	1
V	5
X	10
L	50
C	100
D	500
M	1000

From these seven letters, every number from 1 to 3,999 can be built (and beyond, using a line above a letter to multiply it by a thousand). For everyday needs and the primary-to-middle-school curriculum, mastering up to 1000 is enough.

The Full 1-1000 Roman Numeral Table

This table is split into three parts to make it easy to use: numbers 1-20 (the ones kids use most), multiples of 10 up to 100, and multiples of 100 up to 1000. Combine all three to build any number, such as 987 or 444, as explained in the next section.

Roman Numerals 1-20

Number	Roman	Number	Roman
1	I	11	XI
2	II	12	XII
3	III	13	XIII
4	IV	14	XIV
5	V	15	XV
6	VI	16	XVI
7	VII	17	XVII
8	VIII	18	XVIII
9	IX	19	XIX
10	X	20	XX

Roman numeral flashcards from I to V next to a notebook with handwriting practice of Roman numerals

Multiples of 10 (10-100)

Number	Roman
10	X
20	XX
30	XXX
40	XL
50	L
60	LX
70	LXX
80	LXXX
90	XC
100	C

Multiples of 100 (100-1000)

Number	Roman
100	C
200	CC
300	CCC
400	CD
500	D
600	DC
700	DCC
800	DCCC
900	CM
1000	M

It looks like a lot to memorize at first, but the pattern repeats: X, XX, XXX follows exactly the same pattern as C, CC, CCC, just with a different symbol. Once a child understands one group, the rest just swap the letter.

My daughter was confused at first why 4 is written IV, not IIII. Once I explained the addition-subtraction rule with colored cards, she got excited hunting for clocks or books at home that use Roman numerals.

Sari, mother of Kirana (Grade 4), Depok

How to Read and Write Roman Numerals: The Addition & Subtraction Rules

Two rules determine how to read a Roman numeral.

Rule 1: Add, when a smaller symbol sits to the right of a larger one. Take VI: V (5) is on the left, I (1) is the smaller symbol on the right, so they're added: 5 + 1 = 6. Likewise XV = 10 + 5 = 15, and LXVI = 50 + 10 + 5 + 1 = 66.

Rule 2: Subtract, when a smaller symbol sits to the left of a larger one. Take IV: I (1) is on the left of the larger V (5), so it's subtracted: 5 - 1 = 4. This subtraction pattern only applies to the following six pairs, and no others:

Pair	Value	Meaning
IV	4	5 - 1
IX	9	10 - 1
XL	40	50 - 10
XC	90	100 - 10
CD	400	500 - 100
CM	900	1000 - 100

Three extra rules that trip kids up most often:

The symbols I, X, and C can repeat up to three times in a row (III = 3, XXX = 30), but V, L, and D never repeat (there's no VV for 10, the correct form is X).
A subtracting symbol may only sit one letter before the larger symbol, never stacked (IIX for 8 is wrong, the correct form is VIII).
Numbers are read left to right, thousands first, then hundreds, tens, and units: MCMXCIV breaks down as M (1000) + CM (900) + XC (90) + IV (4) = 1994.

Worked Roman Numeral Examples

Example 1: Convert 987 to Roman numerals. First break it into place-value groups: 900 + 80 + 7. From the table, 900 = CM, 80 = LXXX, 7 = VII. Combine all three: CM + LXXX + VII. So 987 = CMLXXXVII.

A stone tablet engraved with the Roman numeral MCMXCIV next to a calculator and stacked building blocks

Example 2: Convert CDXLIV to a regular number. Read it group by group: CD = 400, XL = 40, IV = 4. Add them up: 400 + 40 + 4 = 444.

Example 3: Why is the year 1994 written MCMXCIV, not MDCCCCLXXXXIIII? Because the maximum-three-repeats rule and the subtraction rule both require the most compact form. 1994 breaks down as 1000 + 900 + 90 + 4, so M + CM + XC + IV = MCMXCIV. The other form has the same numeric value but breaks the standard writing rules.

Example 4: Where do kids usually encounter Roman numerals? Book chapter numbers, the numerals on classic-style analog clocks, the ordinal numbers of kings or popes (Elizabeth II, Pope Francis), a film's production year in the closing credits, and Super Bowl or Olympic edition numbers. Spotting this pattern in real life makes Roman numerals feel relevant, not just a school memorization drill.

Roman numerals are great for training kids to think in value groups, not just the usual ones-tens-hundreds. Once a child understands the pattern, they become sharper at reading numbers in any form.

Ms. Dewi, math teacher at Algonova

Roman Numerals in Everyday Life & When Kids Learn This

In Indonesia, Roman numerals are usually introduced in Grade 4 under Kurikulum Merdeka, alongside material on number symbols and place value. Children who are already fluent in two-to-three-digit addition and subtraction tend to grasp the addition-subtraction logic behind Roman numerals faster, since the concept is similar: building a value from smaller parts.

The easiest way to practice at home: stick Roman numeral cards on a calendar, ask your child to write their own age in Roman numerals, or read book chapter numbers together. Short 10-minute sessions, two to three times a week, are usually enough for a Grade 4-6 child to become fluent up to 1000 within a month.

Frequently Asked Questions About Roman Numerals

What are Roman numerals?

Roman numerals are the number system from Ancient Rome, built from seven letters, I, V, X, L, C, D, and M, used to write numbers with no zero and no place value like our usual ones-tens-hundreds system. A Roman numeral's value comes from combining these symbols using two rules, addition and subtraction. The system is still used today for book chapter numbers, analog clocks, the ordinal numbers of kings or popes, and edition numbers for yearly events like the Olympics.

Why is 4 written IV, not IIII?

The rules for writing Roman numerals cap the repetition of I, X, and C at three times in a row. Writing IIII would break that rule. Instead, the subtraction rule applies: a smaller symbol to the left of a larger one means subtract, so IV means 5 minus 1, equal to 4. IIII was historically used on some antique clock faces for aesthetic reasons, but IV is the standard form taught in schools.

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Roman Numerals 1-1000: Full Table & How to Read Them

What Are Roman Numerals and What Are the Basic Rules?