Matching Pairs AD MILLE MIXING ROMAN NUMERALS & NUMBER WORDSOnline version TRY SAYING ALOUD OR IN YOUR HEAD, USING FACIUNT OR AEQUUNT FOR EQUALS. by Robin Schweitzer 1 CCXC ET M 2 CML MINUS DL 3 DLXXX ET CDXX 4 CCCXX ET CCLXX QUINQENTI NONAGINTA MILLE, DUCENTI NONAGINTA MILLE QUADRINGENTI