A to F   G to M   N to T   U to Z   Numbers Addition Table Multiplication Table Roman Numerals Metric Prefixes Base-n Conversions Log Table   Algebra   Trigonometry   Integration   Differentiation   SI Units   Symbols Maths Numbers - Roman Numerals Roman Numerals I = 1 II = 2 III = 3 IIII or IV = 4 V = 5 VI = 6 VII = 7 VIII = 8 IX = 9 X = 10 XI = 11 XII = 12 XIII = 13 XIV = 14 XV = 15 XVI = 16 XVII = 17 XVIII = 18 XIX = 19 XX = 20 XXV = 25 XXX = 30 XXXV = 35 XL = 40 XLV = 45 L = 50 LX = 60 LXX = 70 LXXX = 80 XC = 90 C = 100 CL = 150 CC = 200 CCL = 250 CCC = 300 CCCL = 350 CCCC or CD = 400 CDL = 450 D = 500 DC = 600 DCC = 700 DCCC = 800 DCCCC or CM = 900 M = 1000 MD = 1500 MM = 2000 MMD = 2500 MMM = 3000

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