Roman Numerals — Syllabus
ICSE · Class 5 · Mathematics
What Roman Numerals covers in ICSE Class 5 Mathematics: 3 topics, for the 2026-27 session. Part of the ICSE Class 5 Mathematics syllabus.
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Topics in Roman Numerals
Basic Roman Numerals and Their Values
- There are 7 basic Roman numerals: I, V, X, L, C, D, and M.
- Each letter stands for a specific number: I = 1, V = 5, X = 10, L = 50, C = 100, D = 500, M = 1000.
- These letters are combined in different ways to form other numbers.
Rules for Writing Roman Numerals
- Letters I, X, C, and M can be repeated up to 3 times only. For example: III = 3, XXX = 30, CCC = 300.
- Letters V, L, and D are never repeated.
- When a smaller numeral is on the right of a larger one, we add them. Example: VI = 5 + 1 = 6.
Converting Numbers: Steps and Examples
- To convert Indo-Arabic numbers to Roman numerals, break the number into parts (like 900 + 20 + 4).
- Convert each part separately and then join them.
- To convert Roman numerals to Indo-Arabic, break the numeral into parts and add or subtract as needed.
Key Concepts
Central concept: Roman Numerals
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Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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