Page 19 - Mathematics_Std_4

=
+
(b) LXXVI 70 6 (c) XCIX 90 9

+
=

= 76 = 99
Therefore, the number Therefore, the number
FOR ONLINE READING ONLY
LXXVI is seventy-six. XCIX is ninety-nine.
(d) LIV 50 4
=
+

= 54
Therefore, the number LIV is fifty-four.

Example 2

Write the following numerals in Roman numbers:
(a) 53 (b) 67 (c) 57 (d) 88

Solution

(a) 53 = + L III (b) 67 LX VII
=
+

=LIII =LXVII
Therefore, 53 is LIII. Therefore, 67 is LXVII.
=
+
(c) 57 = +L VII (d) 88 LXXX VIII

LVII =LXXXVIII
Therefore, 57 is LVII. Therefore, 88 is LXXXVIII.

Exercise 5

1. Write the following Roman numbers in words:

(a) LXVII (b) XC (c) LXXXII (d) XCVIII

2. Write the following numerals in Roman numbers:
(a) 52 (b) 66 (c) 70 (d) 93

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06/11/2024 17:16:57
MATHEMATICS STD 4 PB 2024.indd 12
MATHEMATICS STD 4 PB 2024.indd 12 06/11/2024 17:16:57