Convert

We do this by assigning numeric values to each letter in LCD and taking an increasing total until we get our answer.

Letter Values are N=0, I=1, V=5, X=10, L=50, C=100, D=500, and M=1,000.

Letter 1 is L which has a numeric value of 50

Since the next letter C has a higher numeric value of 100, we assign a negative value to L

We subtract 50 from our Roman numeral sum of 0 to get: 0 - 50 = -50

Letter 2 is C which has a numeric value of 100

Since the next letter D has a higher numeric value of 500, we assign a negative value to C

We subtract 100 from our Roman numeral sum of -50 to get: -50 - 100 = -150

Letter 3 is D which has a numeric value of 500

Since the next letter has a lower numeric value of 0, we assign a positive value to D

We add 500 to our Roman numeral sum of -150 to get: 500 + -150 = 350

Therefore, the Roman numeral LCD has a numeric value of