Mathematics

Simple Roman Numerals

Jul 1, 2026 · 4 views

I, II, III, IV, V... discover Roman numerals with your child — the number system we still see on clocks and book covers.

المادةالرياضيات

المرحلةالصف الثالث الابتدائي

مدة الدرس12 د

أهداف الدرس

Recognize the basic Roman numeral letters and their values
Understand the addition and subtraction rule in Roman numerals
Read simple Roman numerals from 1 to 10

نشاط تطبيقي

Make cards with your child for Roman numerals I through X, ask them to order them from smallest to largest, then match them to regular numbers.

Roman numerals are an ancient number system that uses letters instead of the digits we're used to. We still see them sometimes on clock faces, book covers, and chapter numbering.

The basic letters are: I = 1, V = 5, X = 10, L = 50, C = 100. To write a number, we combine letters: II = 2, III = 3. IV means 4 (because I before V means subtract 1 from 5), and VI means 6 (because I after V means add 1 to 5). Likewise: VII = 7, VIII = 8, IX = 9 (1 before 10), X = 10.

The golden rule: if the smaller letter comes before the bigger one, we subtract; if it comes after, we add. Try reading Roman numerals together on an old wall clock or a picture of one.