ROMAN NUMERALS
- This numeric system originated in ancient Rome and remained the usual way of writing numbers throughout Europe.
- Numbers in this system are represented by combinations of letters from the Latin alphabet.
- Generally we use these numerals for writing numbers, showing a serial order or rank and also we see these numerals on the faces of some watches or clocks.
- These Roman Numerals are based on 7 symbols as shown below-
Roman Numerals (Symbol)
|
I
|
V
|
X
|
L
|
C
|
D
|
M
|
Value (numbers)
|
1
|
5
|
10
|
50
|
100
|
500
|
1000
|
One
|
Five
|
Ten
|
Fifty
|
Hundred
|
Five hundred
|
Thousand
|
- · The letter ‘I’ is used to represent the number 1.
- · The letter ‘V’ is used to represent the number 5.
- · The letter ‘X’ is used to represent the number 10.
Remember that in this method there is no
symbol for zero and the value of symbol did not change with its place.
REPRESENTATION
OF ROMAN NUMERALS
Following points are important to learn how to
represent the roman numerals, just remember those.
1 1.
Only
symbols I or X is written or repeated consecutively for maximum of two or three
times and their total sum is equal to the number they make.
Ex: II = 1 + 1 = 2
III = 1 + 1 + 1
= 3
XXX = 10 + 10 +
10 =30
2 2. When either of the symbol I or V
is written on the right of the symbol
of a bigger number, its value is added
to the value of the bigger number.
Ex: VI = 5 + 1 = 6
XVIII = 10 + 5 + 1 + 1 + 1 = 18
XII = 10 + 1 + 1 =12
3 3. When I is written on the left of V or X, then its value is subtracted from the value of V or X.
However, the symbol I is not written more than once before V or X. Also remember that the symbol V is not written to the left.
Ex: IV = 5 – 1 = 4
IX = 10 – 1 = 9
IIX = 10 – 1 – 1 = 8 [it is wrong]
QUESTION
SET-1 [Answers are given after question set]
Q.1. Write all the numbers from 1 to 100 using
Roman numerals.
Q.2. Write the following numbers using
international numerals.
1)
V
2)
VII
3)
X
4)
XIII
5)
XIV
6)
XVI
7)
XVIII
8)
IX
9)
XXV
10) XXIX
11) VI
12) XI
13) XIV
14) XVII
15) XXXIV
Q.3. Fill in the empty boxes.
Number
|
3
|
6
|
15
|
5
|
9
|
||||
Roman numerals
|
VIII
|
XII
|
XIX
|
XX
|
Q.4. Write the numbers using roman numerals:
1)
9
2)
2
3)
17
4)
4
5)
11
6)
18
7)
1
8)
21
9)
10
10) 3
11) 8
12) 13
13) 16
14) 29
15) 0
Q.5. In the table given below each number is
written in international numerals and then again in Roman numerals. If it is
written correctly in Roman numerals, put a in the box under
it. If not, put r and correct it.
International
numbers
|
4
|
6
|
8
|
16
|
15
|
20
|
36
|
Roman numerals
|
IIII
|
VI
|
IIX
|
XVI
|
VVV
|
XX
|
XXXVI
|
Right or Wrong
|
|||||||
If wrong correct it
|
Q.6. State true of false of the following. If
the statements is false then correct it in Roman numerals.
1) 3
is written as IIV
2) 14
is written as XIV
3) 16
is written as XVI
4) 19
is written as IXX
Q.7. Solve the following additions and write
answers in Roman numerals
1) III
+ IV
2) IV
+ V
3) IX
+ X
4) VI
+ X
5) III
+ II
6) V
+ V
7) XXX
+ XX
8) L
+ L
Q.8. Match the columns:
(A)
|
(B)
|
1)
L
|
(a)
500
|
2)
D
|
(b)
50
|
3)
M
|
(c)
100
|
4)
C
|
(d)
1000
|
Q.9. Circle the correct international number of
the following
1) XXIV
a. 10
b. 20
c. 24
2) VIII
a. 8
b. 207
c. 19
3) XXIX
a. 31
b. 29
c. 20
4) XXVII
a. 27
b. 28
c. 26
Q.10. Circle the correct Roman numeral of the
following:
1) 36
a. XXVI
b. XXXVI
c. XXXXVI
2) 27
a. XXXVI
b. XXVII
c. XXVI
3) 18
a. XVIII
b. XVI
c. XVII
4) 605
a. DCV
b. CDV
c. XXXXXV
Q.11. Put >, <, or = in the box.
CVI
|
CLX
|
|
CLXIX
|
CLXXI
|
|
XLIX
|
XXXIX
|
|
MMXVI
|
MMXXVI
|
|
LXXVII
|
LVIII
|
|
MCMMXL
|
MCMXLV
|
