A list of roman numeral numbers?

Answer 1

I = 1

v = 5

x = 10

l = 50

c = 100

d = 500

m = 1000

i, ii, iii, iv, v, vi, vii, viii, ix, x, (1-10)

xi, xii, xiii, xiv, xv, xvi, xvii, xviii, xix, xx (11-20)