CDLXXV

CDLXXV is a Roman numeral. To understand its value, we break down the Roman numeral system. The system uses letters to represent numbers: I for 1, V for 5, X for 10, L for 50, C for 100, D for 500, and M for 1000. When a numeral of smaller value precedes a numeral of larger value, it is subtracted. Otherwise, the values are added.

In CDLXXV, we have the following sequence: C, D, L, X, X, V.

First, consider CD. Since C (100) is less than D (500), we subtract C from D, resulting in 500 - 100 = 400.

Next, we have LXX. Since X (10) is less than L (50), but the Xs follow the L, we add them. So, L (50) + X (10) + X (10) = 70.

Finally, we have V, which represents 5.

Combining these parts, we add the values of CD, LXX, and V: 400 + 70 + 5 = 475. Therefore, the Roman numeral CDLXXV represents the number 475 in the standard Arabic numeral system. This representation follows the rules of Roman numeral notation, where subtractive and additive principles are applied sequentially.