Roman Numerals 1 to 40 – List, Chart, Rules, Solved Problems

Roman numerals from 1 to 40 provide a fascinating glimpse into the numerical system used by ancient Romans, which is still in use today for various purposes. This system employs combinations of letters from the Latin alphabet: I (1), V (5), X (10), L (50), C (100), D (500), and M (1000). The numerals from 1 to 40 are represented as follows: I, II, III, IV, V, VI, VII, VIII, IX, X, XI, XII, XIII, XIV, XV, XVI, XVII, XVIII, XIX, XX, XXI, XXII, XXIII, XXIV, XXV, XXVI, XXVII, XXVIII, XXIX, XXX, XXXI, XXXII, XXXIII, XXXIV, XXXV, XXXVI, XXXVII, XXXVIII, XXXIX, and XL. Understanding these numerals is crucial for students and enthusiasts of history and mathematics, as they are frequently encountered in various contexts, including clocks, books, and historical documents.

Download Roman Numerals 1 to 40 in PDF

Roman Numerals 1 to 40

Download Roman Numerals 1 to 40 in PDF

Rules to Write Roman Numerals 1 to 40

1. Basic Symbols:
   • I = 1
   • V = 5
   • X = 10
   • L = 50
   • C = 100
   • D = 500
   • M = 1000
2. Repeating Symbols:
   • A symbol can be repeated up to three times to add values. For example:
     • III = 3 (I + I + I)
     • XXX = 30 (X + X + X)
3. Subtractive Notation:
   • Place a smaller numeral before a larger numeral to subtract its value. For example:
     • IV = 4 (5 – 1)
     • IX = 9 (10 – 1)
     • XL = 40 (50 – 10)
4. Additive Notation:
   • Place a smaller numeral after a larger numeral to add its value. For example:
     • VI = 6 (5 + 1)
     • XI = 11 (10 + 1)
     • XXVI = 26 (10 + 10 + 5 + 1)

Solved Problems

1. Convert 7 to Roman Numerals
   • 7 = VII
     • 5 (V) + 1 (I) + 1 (I)
2. Convert 14 to Roman Numerals
   • 14 = XIV
     • 10 (X) + (5 – 1) (IV)
3. Convert 25 to Roman Numerals
   • 25 = XXV
     • 10 (X) + 10 (X) + 5 (V)
4. Convert 39 to Roman Numerals
   • 39 = XXXIX
     • 10 (X) + 10 (X) + 10 (X) + (10 – 1) (IX)
5. Convert 18 to Roman Numerals
   • 18 = XVIII
     • 10 (X) + 5 (V) + 1 (I) + 1 (I) + 1 (I)
6. Convert 30 to Roman Numerals
   • 30 = XXX
     • 10 (X) + 10 (X) + 10 (X)
7. Convert 3 to Roman Numerals
   • 3 = III
     • 1 (I) + 1 (I) + 1 (I)
8. Convert 27 to Roman Numerals
   • 27 = XXVII
     • 10 (X) + 10 (X) + 5 (V) + 1 (I) + 1 (I)
9. Convert 12 to Roman Numerals
   • 12 = XII
     • 10 (X) + 1 (I) + 1 (I)
10. Convert 32 to Roman Numerals
    • 32 = XXXII
      • 10 (X) + 10 (X) + 10 (X) + 1 (I) + 1 (I)

Mastering Roman numerals from 1 to 40 involves understanding the combination of basic symbols: I, V, X, and L, representing 1, 5, 10, and 50 respectively. The numerals follow specific rules of repetition, addition, and subtraction to form numbers, such as III for 3, IX for 9, XV for 15, XX for 20, and XL for 40. This knowledge not only provides a historical perspective but also enhances numerical literacy in contexts where Roman numerals are still used, such as in book chapters, clock faces, and event numbering, making it a valuable skill for various applications.