This math topic focuses on converting Roman numerals to their corresponding Arabic numeral equivalents. The problems cover basic conversions up to the number 40, with specific examples such as converting XX, MM, DC, LX, CC, II, and VI. Each problem is formatted as a multiple-choice question, where learners need to select the correct Arabic numeral from a list of options. The numerals discussed in these problems range across different values, including those made by repeated symbols or by combining symbols like adding 100 to 500 or 10 to 50.