III + IX + X + IV = 3+ 9+10+4 = 26
I+ IV+VI+VIII = 1+4+6+8 = 19
V +V+VI = 5+5 +6 = 16
**** CHO MÌNH NHÉ !!1
a)3+4+10+9=26(xxvi)
b)1+4+6+8=19(xix)
c)5+5+6=16(xvi)
3+9+10+4=26
1+4+6+8=19
5+5+6=16
III + IX + X + IV I + IV + VI + VIII
III + IX + X + IV = 3 + 9 + 10 + 4 I + IV + VI + VIII = 1 + 4 + 6 + 8
III + IX + X + IV = 26 I + IV + VI + VIII = 19
V + V + VI
V + V + VI = 5 + 5 + 6
V + V + VI = 16