Write any 5 rules for writing roman numerals
Answers
Rule 4: (a) If we have to write the numbers beyond 10 we should write the number 10 or groups of number 10 and then number 1 or 5 as the case may be. Then these numbers are used to change to the corresponding Roman numerals. As:
12 = 10 + 2 = 1 0 + 1 + 1 = XII
20 = 10 + 10 = XX
22 = 10 + 10 +1 + 1= XXII
26 = 10 + 10 + 5 + 1 = XXVI
39 = 10 + 10 + 10 + (10 - 1) = XXXIX
37 = 10 + 10 + 10 + 5 + 1 + 1 = XXXVII
(b) According to this pattern, numbers higher than number 40 are also formed:
43 = (50 - 10) + 1 +1 + 1= XLIII
56 = 50 + 5 + 1 = LVI1
59 = 100 + 50 + (10 - 1) = CLIX
1238 = 1000 + 100 + 100 + 10 + 10 + 10 + 5 + 1 + 1 + 1 = MCCXXXVIII
Rule 5: If a horizontal line is drawn over the symbols or digits of Roman numerals, then the value of the numerals becomes 1000 times. As:
XV = 15 but XV = 15000,CLV = 155 but CLV = 155000
For example:
1. Write the Roman numerals for the following numbers:
(i) 13 = XIII
(ii) 14 = XIV
(iii) 18 = XVIII
(iv) 26 = XXVI
(v) 39 = XXXIX
(vi) 42 = XXXXII
(vii) 61 = LXI
(viii) 545 = DXLV
(ix) 217 = CCXVII
Answer:
write five rules for writing Roman numerals?