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Directions: Give the Arabic representation for the following numerals. XI
XI = 10 + 1 = 11
So, 11 is the Arabic representation for the numeral XI.
Directions: Give the Arabic representation for the following numerals. IV
IV = 5  1 = 4
So, 4 is the required Arabic representation.
Directions: Give the Arabic representation for the following numerals. XXIII
XXIII = 10 + 10 + 1 + 1 + 1 = 23
Directions: Give the Arabic representation for the following numerals. XD
XD = 500  10 = 490
There is difference of one.
There is difference of five.
There is difference of ten.
The series is with the difference of 2, so it will be 19, 21, 23 and 25.
[15  5 = 10]
[10 + 30 = 40]
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