The rules

You will be given a random selection of Roman numerals.

12 = XII The computer will then display numbers in English one by one.
It's your job to translate the English numbers into Roman numerals. If you see a number that is on one of your blocks, click to select it.

Look carefully!

You'll be playing against the computer to see who can tick off all of their numbers first, so the number won't always appear on your blocks.

Read the numeral guide to help you identify them correctly.

For schools

Roman numeral bingo is a great way to help children calculate, remember and recall Roman numerals.

To generate random Roman numeral sheets for use in class, simply select how many sheets you'd like to print and click the GENERATE button below.

This will create a printable PDF for you to download. Once you have downloaded and printed the sheets, return to this page and click the PLAY IN CLASS button below to start the game.

Numerals per sheet Max. numeral value Sheets Generate

Number to find


Can you find the number above?

If you see it on your sheet, tick it off.
When you've found all of your numbers remember to shout bingo!

Next number End game

Level XX: here are your numerals


Is this number on one of your blocks?

If you can find it, select the block and click "continue".
If it's not there, just click "continue" for the next number.


The number you chose doesn't match the one you were looking for.
Please try again, and check the numeral guide if you need a bit of help.

Well done!

You found the correct numeral.


Congratulations, you have passed this level.

Get certificate

Oh no!

Sorry, this time the computer beat you to it. Better luck next time.

Roman numeral guide

Numerals only use seven different letters.

  • I = 1
  • V = 5
  • X = 10
  • L = 50
  • C = 100
  • D = 500
  • M = 1000.

Here are some examples of how to add Roman numerals together:

2 = II which is just two ones combined (1 + 1 = 2).

12 = XII which is X + II (10 + 1 + 1 = 12).

27 = XXVII which is XX + V + II (10 + 10 + 5 + 1 + 1 = 27).

Roman numerals are usually written largest to smallest from left to right, and then added together. However this is not always the case. The Romans didn't like four of the same letter in a row so they developed a system of subtraction.

can be placed before V (5) and X (10) to make 4 and 9.

X can be placed before L (50) and C (100) to make 40 and 90.

C can be placed before D (500) and M (1000) to make 400 and 900.

For example:

4 = IV the smaller I appears before V so subtract 1 from 5.

9 = IX the smaller I appears before X so subtract 1 from 10.

90 = XC the smaller X appears before C so subtract 10 from 100.



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