What is MMXX in Roman Numerals?

Answer 1

Add together the individual numerals (M = 1000, D = 500, C = 100, L = 50, X = 10, V = 5, I = 1) unless a smaller numeral precedes a larger one in which case subtract it from the larger one.

→ MMXX = 1000 + 1000 + 10 + 10 = 2020.

Answer 2

MMXX in Roman numerals is equivalent to the number 2020. In Roman numerals, M represents 1000, and two M's (MM) represent 2000. Adding XX, which represents 20, to 2000 gives us 2020.

Answer 3

M represents 1000, and X is 10. This would convert to 2020.