Knowledge is power. Roman numerals
Interactive exercises
Results
Converter
Rules
Worksheets
Reviews
DAILY BRAIN GAMES
Like Wordle but harder
PLAY WORD MASTER
Interactive exercises
Results
Converter
Rules

## Interactive exercises - Roman numerals

Interactive exercises are generic, application compiles a new series of tasks each time you start.
INTERACTIVE EXERCISES
 Interactive exercises: {{restit}} Name: Virtual keyboard:
 Number of tasks: {{(plynum)}} Difficulty: {{resdifi}}
{{one.qins}}

{{one.qtxt}} =

Share result on TW and FB
{{shareResHtml.length}}
COPY
RESULT
 Interactive exercises: {{restit}} Name: Date: {{timest * 1000 | date:'dd.MM.yyyy HH:mm:ss'}} Num. of tasks: {{(anscor+answro)}} Difficulty: {{resdifi}} Correct answers: {{anscor}} Wrong answers: {{answro}} Efficiency: {{anscor/(anscor+answro)*100|number:0}} % Time: {{tmdur}} s Time per task: {{tmdur / (anscor+answro)|number:1}} s

Save the result and track your progress.
6
10
15

# Roman numerals

Roman numerals are a numeral system that was used by ancient Rome. Numbers in this system are represented by combinations of letters from the Latin alphabet.

Roman numerals were in use until the 14th century, when system was replaced by the more convenient Arabic numerals. However, Roman numerals are still used today in certain contexts. If you don't have a profile yet, create your profile.
Performance - Roman numerals
Proportion of correct answers (in %) for the last {{chrAnum}} exercises.
Show:
SHOW
Tasks solved by months - Roman numerals
Number of completed tasks by months. One exercise usually contains 6 to 15 tasks.
Show difficulty:
SHOW
Performance by months - Roman numerals
Proportion of correctly solved tasks (in %) by months.
Show difficulty:
SHOW
Tasks by difficulty - Roman numerals
Number of solved tasks by difficulty in each month.
Show month:
SHOW

## Learn Roman numerals

Select a Roman numeral and check out its decimal value.

{{shwro}} = {{shwar}}

## Roman numerals converter

You can convert numbers between 1 and 3999.
Enter a Roman numeral

CONVERT

{{ronumdn}} = {{ronumres}}

Enter a decimal number

CONVERT

{{arnumdn}} = {{arnumres}}

### Table Roman numerals

Basic table for converting Roman numerals into Arabic decimal numerals.

 Roman numerals Arabic numerals I 1 V 5 X 10 L 50 C 100 D 500 M 1000

Roman numerals have no symbol to represent 0.

### Roman numerals conversion rules

If a numeral comes after a numeral that is larger or equal in value, then it must be added to the numeral before it.
VI = 5 + 1 = 6
XX = 10 + 10 = 20

2. Subtraction
A smaller numeral placed before a larger numeral indicates subtraction of that smaller numeral from the larger one.
You cannot subtract more than one value from a Roman numeral.
IV = 5 - 1 = 4
IX = 10 - 1 = 9

3. Max three together
You cannot add more than three of the same Roman numeral together.
III = 3
Wrong: IIII, correct: IV = 4

4. L and D cannot be subtracted
Only powers of ten (I, X, C, M) can be subtracted.
Value 5
Wrong: VX (10 - 5)
Correct: V (5)

5. One-fifth or one-tenth
You can subtract only value that is 1/5th (one-fifth) or 1/10th (one-tenth) the larger one.
Wrong: IC = 100 - 1 = 99
Correct: XCIX = (100 - 10) + (10 - 1) = 99
Share the link to the page with friends.
https://kveez.com/en/roman-numerals/
COPY

## Worksheets - Roman numerals

Create worksheets and PRINT or SAVE them. You can create unlimited number of different worksheets.

1. CHOOSE SETTINGS :: Choose the number of tasks, difficulty and type of tasks.
2. GENERATE TASKS :: Use the GENERATE button to create a new serie of tasks if you don't like the worksheet you can easily generate another.
3. CREATE PDF :: The worksheet (PDF) opens in a new tab, you can PRINT it or SAVE it to your computer.