In Roman Numerals what does XXVI mean?

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 ones.

→ XXVI = 10 + 10 + 5 + 1 = 26

Answer 2

The X is for 10, the V is for 5 and the I is for 1. That makes this the number 26.

Answer 3

xxvi is equal to the number 26.