What is the Arabic numeral equivalent of the Roman numeral LXIV?

To understand why the Arabic numeral equivalent of the Roman numeral LXIV is 64, we break down the Roman numerals involved:

• The letter L in Roman numerals represents 50.

• The letter X represents 10. Since there are two Xs, we add another 10, giving us 20 in total from the Xs.

• The letter I represents 1. Since there are four total pieces (one L and two Xs), we have one additional I, adding 4 to our total.

Now, let's sum these values:

50 (L) + 10 (X) + 10 (X) + 1 (I) + 1 (I) + 1 (I) + 1 (I) = 50 + 10 + 10 + 4 = 64.

Thus, the Arabic numeral equivalent of LXIV is correctly identified as 64. This process illustrates how the values of the Roman numerals can be added together to arrive at the correct Arabic numeral.