Convert Between Roman Numerals and Normal Numbers

In this worksheet, students will convert from normal numbers to Roman numerals and vice versa.

Key stage: KS 2

Year: Year 5 Maths worksheets

Curriculum topic: Number: Number and Place Value

Curriculum subtopic: Read Roman Numerals to M (1000)

Difficulty level:

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Worksheet Overview

The Romans used the following symbols to represent their counting numbers:

I = 1

V = 5

X = 10

L = 50

C = 100

D = 500

M = 1000

Certain rules apply.

A letter placed after another letter means that you add the second letter to the first letter. Examples include:

VI = 5 + 1 = 6

VII = 5 + 1 + 1 = 7

VIII = 5 + 1 + 1 + 1 = 8

XI = 10 + 1 = 11

LX = 50 + 10 = 60

MC = 1000 + 100 = 1100

A letter placed before another letter means that you subtract the first letter from the second. Examples include:

IV = 5 - 1 = 4

IX = 10 - 1 = 9

XL = 50 - 10 = 40

CM = 1000 - 100 = 900

Example

Write the number 3874 in Roman numerals.

Answer

MMM = 3000

DCCC = 500 + 300 = 800

L = 50

XX = 20

IV = 5 - 1 = 4

So 3874 = MMMDCCCLXXIV

Phew, that's quite a number! Are you ready to have a go at these now?

a Roman centurion

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