Conversion of Numbers
to Roman Numerals

The Roman digits are used for the conversion of numbers to Roman numerals. In the Hindu-Arabic system, the digits used in English or International numeration are 1, 2, 3, 4, 5, 6, 7, 8, 9 and 0.

The values of the international numeration in Roman digits are as follow:

One (1) = I

Five (5) = V

Ten (10) = X

Fifty (50) = L

Hundred (100) = C

Five hundred (500) = D


Examples on conversion of numbers to Roman numerals:

Write the following numbers in Roman numerals:

(i) 4 = 5 - 1 = IV

So, 4 = IV


(iii) 24 = 25 - 1 = XXIV

So, 24 = XXIV


(v) 11 = 10 + 1 = XI

So, 11 = XI


(vii) 39 = 40 - 1 = 30 + 10 - 1

= XXXIX

So, 39 = XXXIX

(ii) 9 = 10 - 1 = IX

So, 9 = IX


(vi) 20 = 10 + 10 = XX

So, 20 = XX


(vi) 26 = 25 + 1 = XXVI

So, 26 = XXVI


(viii) 38 = 20 + 10 + 5 + 3

= XXXVIII

So, 38 = XXXVIII

3rd Grade Math Lessons

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