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Grade 1 Math
Number
3. N1.3
3.4 Identifying the value of a roman numeral
Identifying the Value of a Roman Numeral
Discover how the seven Roman numeral symbols combine using addition and subtraction rules to build any value from 1 up to 100 and beyond.
What You'll Learn
Memorize the seven basic symbols I, V, X, L, C, D, and M and the value each one stands for
Apply the addition rule by reading symbols left to right and adding their values, such as \( 10 + 1 + 1 = 12 \) for XII
Apply the subtraction rule when a smaller symbol appears before a larger one, such as \( 10 - 1 = 9 \) for IX
Recognize the numerals for 1 through 10 (I, II, III, IV, V, VI, VII, VIII, IX, X) without hesitating
Build larger values such as 100 in Roman numerals by combining C with smaller symbols like L and X
Check a numeral's value by breaking it into groups no symbol repeats more than three times in a row
What You'll Practice
1
Reading Roman numerals with symbols I, V, and X
2
Converting Roman numerals to whole numbers
3
Identifying values of Roman numerals in various combinations
Why This Matters
Roman numerals appear everywhere in daily lifeon clocks, in book chapters, at the Super Bowl, and in historical dates. Learning to read them builds your number sense and helps you navigate documents, architecture, and media that use this ancient numbering system.
This Unit Includes
Practice exercises
Learning resources
Skills
Roman Numerals
Number Systems
Symbol Recognition
Number Conversion
Place Value
SK Curriculum Aligned