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Class 5 Exam  >  Class 5 Notes  >  Mathematics for Class 5  >  Practice Questions with Solutions: Roman Numerals

Class 5 Maths - Roman Numerals - Question Answers

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Roman Numerals 1 to 30Roman Numerals 1 to 30

Question 1: Write the following in Roman numerals :
(a) 258
(b) 410
(c) 285
(d) 335
(e) 444
(f) 247
(g) 438
(h) 365
(i) 495
(j) 466

(a) 258 = 200 + 50 + 8 = CC + L + VIII = CCLVIII

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • Break down 258 into its parts: 200 + 50 + 8.
  • Roman numeral for 200 is CC.
  • Roman numeral for 50 is L.
  • Roman numeral for 8 is VIII.
  • Combine them: CC + L + VIII = CCLVIII.

(b) 410 = 400 + 10 = CD + X = CDX

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • Break down 410 into its parts: 400 + 10.
  • Roman numeral for 400 is CD.
  • Roman numeral for 10 is X.
  • Combine them: CD + X = CDX.

(c) 285 = 200 + 80 + 5 = CC + LXXX + V = CCLXXXV

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • Break down 285 into its parts: 200 + 80 + 5.
  • Roman numeral for 200 is CC.
  • Roman numeral for 80 is LXXX.
  • Roman numeral for 5 is V.
  • Combine them: CC + LXXX + V = CCLXXXV.

(d) 335 = 300 + 30 + 5 = CCC + X X X + V = CCCXXXV

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • Break down 335 into its parts: 300 + 30 + 5.
  • Roman numeral for 300 is CCC.
  • Roman numeral for 30 is XXX.
  • Roman numeral for 5 is V.
  • Combine them: CCC + XXX + V = CCCXXXV.

(e) 444 = 400 + 40 + 4 = CD + XL + IV = CDXLIV

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • Break down 444 into its parts: 400 + 40 + 4.
  • Roman numeral for 400 is CD.
  • Roman numeral for 40 is XL.
  • Roman numeral for 4 is IV.
  • Combine them: CD + XL + IV = CDXLIV.

(f) 247 = 200 + 40 + 7 = CC + X L + VII = CCXLVII

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • Break down 247 into its parts: 200 + 40 + 7.
  • Roman numeral for 200 is CC.
  • Roman numeral for 40 is XL.
  • Roman numeral for 7 is VII.
  • Combine them: CC + XL + VII = CCXLVII.

(g) 438 = 400 + 30 + 8 = CD + X X X + VIII = CDXXXVIII

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • Break down 438 into its parts: 400 + 30 + 8.
  • Roman numeral for 400 is CD.
  • Roman numeral for 30 is XXX.
  • Roman numeral for 8 is VIII.
  • Combine them: CD + XXX + VIII = CDXXXVIII.

(h) 365 = 300 + 60 + 5 = CCC + LX + V = CCCLXV

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • Break down 365 into its parts: 300 + 60 + 5.
  • Roman numeral for 300 is CCC.
  • Roman numeral for 60 is LX.
  • Roman numeral for 5 is V.
  • Combine them: CCC + LX + V = CCCLXV.

(i) 495 = 400 + 90 + 5 = CD + X C + V = CDXCV

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • Break down 495 into its parts: 400 + 90 + 5.
  • Roman numeral for 400 is CD.
  • Roman numeral for 90 is XC.
  • Roman numeral for 5 is V.
  • Combine them: CD + XC + V = CDXCV.

(j) 466 = 400 + 60 + 6 = CD +LX + VI = CDLXVI

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • Break down 466 into its parts: 400 + 60 + 6.
  • Roman numeral for 400 is CD.
  • Roman numeral for 60 is LX.
  • Roman numeral for 6 is VI.
  • Combine them: CD + LX + VI = CDLXVI.

Question 2: Write the following in Roman numerals :
(a) 42
(b) 63
(c) 85
(d) 99
(e) 105
(f) 109
(g) 115
(h) 136
(i) 171
(j) 184
(k) 197
(l) 200

(a) 42 = 40 + 2 = X L + II = XLII

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • Break down 42 into its parts: 40 + 2.
  • Roman numeral for 40 is XL.
  • Roman numeral for 2 is II.
  • Combine them: XL + II = XLII.

(b) 63 = 60 + 3 = LX + III = LXIII

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • Break down 63 into its parts: 60 + 3.
  • Roman numeral for 60 is LX.
  • Roman numeral for 3 is III.
  • Combine them: LX + III = LXIII.

(c) 85 = 80 + 5 = LXXX + V = LXXXV

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • Break down 85 into its parts: 80 + 5.
  • Roman numeral for 80 is LXXX.
  • Roman numeral for 5 is V.
  • Combine them: LXXX + V = LXXXV.

(d) 99 = 90 + 9 = X C + IX = XCIX

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • Break down 99 into its parts: 90 + 9.
  • Roman numeral for 90 is XC.
  • Roman numeral for 9 is IX.
  • Combine them: XC + IX = XCIX.

(e) 105 = 100 + 5 = C + V = CV

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • Break down 105 into its parts: 100 + 5.
  • Roman numeral for 100 is C.
  • Roman numeral for 5 is V.
  • Combine them: C + V = CV.

(f) 109 = 100 + 9 = C + IX = CIX

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • Break down 109 into its parts: 100 + 9.
  • Roman numeral for 100 is C.
  • Roman numeral for 9 is IX.
  • Combine them: C + IX = CIX.

(g) 115 = 100 + 10 + 5 = C + X + V = CXV

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • Break down 115 into its parts: 100 + 10 + 5.
  • Roman numeral for 100 is C.
  • Roman numeral for 10 is X.
  • Roman numeral for 5 is V.
  • Combine them: C + X + V = CXV.

(h) 136 = 100 + 30 + 6 = C + XXX + VI = CXXXVI

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • Break down 136 into its parts: 100 + 30 + 6.
  • Roman numeral for 100 is C.
  • Roman numeral for 30 is XXX.
  • Roman numeral for 6 is VI.
  • Combine them: C + XXX + VI = CXXXVI.

(i) 171 = 100 + 70 + 1 = C + LXX + I = CLXXI

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • Break down 171 into its parts: 100 + 70 + 1.
  • Roman numeral for 100 is C.
  • Roman numeral for 70 is LXX.
  • Roman numeral for 1 is I.
  • Combine them: C + LXX + I = CLXXI.

(j) 184 = 100 + 80 + 4 = C + LXXX + IV = CLXXXIV

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • Break down 184 into its parts: 100 + 80 + 4.
  • Roman numeral for 100 is C.
  • Roman numeral for 80 is LXXX.
  • Roman numeral for 4 is IV.
  • Combine them: C + LXXX + IV = CLXXXIV.

(k) 197 = 100 + 90 + 7 = C + XC + VII = CXCVII

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • Break down 197 into its parts: 100 + 90 + 7.
  • Roman numeral for 100 is C.
  • Roman numeral for 90 is XC.
  • Roman numeral for 7 is VII.
  • Combine them: C + XC + VII = CXCVII.

(l) 200 = 100 + 100 = C + C = CC

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • Break down 200 into its parts: 100 + 100.
  • Roman numeral for 100 is C.
  • Combine them: C + C = CC.

Question 3: Write the Hindu-Arabic numerals for each of the following :
(a) CCCXIV
(b) CDXL
(c) DCI
(d) CCCLXXVI
(e) DXVIII
(f) CCCXX XVIII
(g) CDXXXVIII

(a) CCCXIV = CCC + X + IV = 300 + 10 + 4 = 314

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • Roman numerals: CCC + X + IV.
  • CCC = 300, X = 10, IV = 4.
  • Combine them: 300 + 10 + 4 = 314.

(b) CDXL = CD + XL = 400 + 40 = 440

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • Roman numerals: CD + XL.
  • CD = 400, XL = 40.
  • Combine them: 400 + 40 = 440.

(c) DCI = D + C + 1 = 500 + 100 + 1 = 601

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • Roman numerals: D + C + I.
  • D = 500, C = 100, I = 1.
  • Combine them: 500 + 100 + 1 = 601.

(d) CCCLXX VI = CCC + L + XX + VI = 300 + 70 + 6 = 376

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • Roman numerals: CCC + L + XX + VI.
  • CCC = 300, L = 50, XX = 20, VI = 6.
  • Combine them: 300 + 50 + 20 + 6 = 376.

(e) DXVIII = D + X + VIII = 500 + 10 + 8 = 518

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • Roman numerals: D + X + VIII.
  • D = 500, X = 10, VIII = 8.
  • Combine them: 500 + 10 + 8 = 518.

(f) CCCXXXVII = CCC + XXX + VII = 300 + 30 + 7 = 337

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • Roman numerals: CCC + XXX + VII.
  • CCC = 300, XXX = 30, VII = 7.
  • Combine them: 300 + 30 + 7 = 337.

(g) CDX X X VIII = CD + XXX + VIII = 400 + 30 + 8 = 438

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • Roman numerals: CD + XXX + VIII.
  • CD = 400, XXX = 30, VIII = 8.
  • Combine them: 400 + 30 + 8 = 438.

Question 4: Write the Hindu-Arabic numerals for each of the following:
(a) XLV
(b) LVII
(c) XCVIII
(d) LXXXVI
(e) CIV
(f) CXVI
(g) CXXXIX
(h) CLVIII
(i) CLXII
(j) CLXXVI
(k) CXCVIII
(l) CXCIX

(a) XLV = XL + V = 40 + 5 = 45

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • XL = 40 (since X (10) before L (50) means subtract 10 from 50)
  • V = 5
  • Total: 40 + 5 = 45

(b) LVII = L + VII = 50 + 7 = 57

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • L = 50
  • VII = 7 (V = 5 and II = 2)
  • Total: 50 + 7 = 57

(c) XCVIII = XC + VIII = 90 + 8 = 98

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • XC = 90 (since X (10) before C (100) means subtract 10 from 100)
  • VIII = 8 (V = 5 and III = 3)
  • Total: 90 + 8 = 98

(d) LX X X VI = L + XXX + VI = 50 + 30 + 6 = 86

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • L = 50
  • XXX = 30 (X = 10, so XXX = 10 + 10 + 10 = 30)
  • VI = 6 (V = 5 and I = 1)
  • Total: 50 + 30 + 6 = 86

(e) CIV = C + IV = 100 + 4 = 104

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • C = 100
  • IV = 4 (since I (1) before V (5) means subtract 1 from 5)
  • Total: 100 + 4 = 104

(f) CXVI = C + X + VI = 100 + 10 + 6 = 116

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • C = 100
  • X = 10
  • VI = 6 (V = 5 and I = 1)
  • Total: 100 + 10 + 6 = 116

(g) CXXXIX = C + XXX + IX = 100 + 30 + 9 = 139

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • C = 100
  • XXX = 30 (X = 10, so XXX = 10 + 10 + 10 = 30)
  • IX = 9 (since I (1) before X (10) means subtract 1 from 10)
  • Total: 100 + 30 + 9 = 139

(h) CLVIII = C + L + VIII = 100 + 50 + 8 = 158

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • C = 100
  • L = 50
  • VIII = 8 (V = 5 and III = 3)
  • Total: 100 + 50 + 8 = 158

(i) CLX II = C + LX + II = 100 + 60 + 2 = 162

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • C = 100
  • LX = 60 (L = 50 and X = 10)
  • II = 2
  • Total: 100 + 60 + 2 = 162

(j) CLXXVI = C + LXX + VI = 100 + 70 + 6 = 176

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • C = 100
  • LXX = 70 (L = 50 and XX = 20)
  • VI = 6 (V = 5 and I = 1)
  • Total: 100 + 70 + 6 = 176

(k) CXCVIII = C + XC + VIII = 100 + 90 + 8 = 198

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • C = 100
  • XC = 90 (since X (10) before C (100) means subtract 10 from 100)
  • VIII = 8 (V = 5 and III = 3)
  • Total: 100 + 90 + 8 = 198

(l) CXCIX = C + XC + IX = 100 + 90 + 9 = 199.

Class 5 Maths - Roman Numerals - Question Answers  View Answer
  • C = 100
  • XC = 90 (since X (10) before C (100) means subtract 10 from 100)
  • IX = 9 (since I (1) before X (10) means subtract 1 from 10)
  • Total: 100 + 90 + 9 = 199

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FAQs on Class 5 Maths - Roman Numerals - Question Answers

1. What are Roman numerals and how do they work?
Ans.Roman numerals are a numeral system originating from ancient Rome, using combinations of letters from the Latin alphabet (I, V, X, L, C, D, M) to represent numbers. For example, I represents 1, V represents 5, X represents 10, L represents 50, C represents 100, D represents 500, and M represents 1000. Numbers are formed by combining these letters, and the value is determined by the position of the letters.
2. How do you convert a number like 45 into Roman numerals?
Ans.To convert the number 45 into Roman numerals, you break it down into its components: 40 and 5. In Roman numerals, 40 is represented as XL (50 - 10) and 5 is represented as V. Therefore, 45 in Roman numerals is XLV.
3. What are some common rules for writing Roman numerals?
Ans.Some common rules for writing Roman numerals include: 1. If a smaller numeral appears before a larger numeral, you subtract the smaller from the larger (e.g., IV = 4). 2. If a smaller numeral appears after a larger numeral, you add the smaller to the larger (e.g., VI = 6). 3. The same numeral cannot be repeated more than three times in a row (e.g., III = 3, but 4 is not IIII; it is IV).
4. How do you write the year 2023 in Roman numerals?
Ans.To write the year 2023 in Roman numerals, you break it down: 2000 is M, 20 is XX, and 3 is III. Therefore, 2023 in Roman numerals is MMXXIII.
5. What are some examples of larger numbers in Roman numerals?
Ans.Some examples of larger numbers in Roman numerals include: - 1000 = M - 4000 = MMMM (though 4000 is rarely used, as it exceeds standard Roman numeral conventions) - 5000 = V with a line over it (indicating multiplication by 1000) - 10000 = X with a line over it. These are typically used in specific contexts such as inscriptions or numbering in historical documents.
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