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September 30, 2014

Homework Help: Converting Roman numerals to arabic Numbers

Posted by Rina on Tuesday, March 15, 2011 at 7:59pm.

1) CCXIX

C = 100
X = 10
I = 1

because there are 2 C's I added them together and I got 200
because there are 2 X's I added them together and got 20
because there is 1 I that equaled 1
So I added 200 + 20 + 1 = 221 which is my final answer

But according to the back of the book the answer is 219. Please help me determine how they got 219 for the answer or am I correct. Thank you

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