Răspuns :
a) 549= DXLIX, 897= DCCCXCII DXLIX+DCCCXCII= 1446 - MCDXLVI b) 2589 = MMDLXXXIX
1893=MDCCCXCIII
MMDLXXXIX-MDCCC XCIII = 696 - DCXCVI
1893=MDCCCXCIII
MMDLXXXIX-MDCCC XCIII = 696 - DCXCVI