1 to 50
50 to 500
500 to 100,000
addition 1 to 1000
subtraction 1 to 1000
100
what is I
1
100
what is LI
51
100
what is LXXL
170
100
what is D+D+X
1010
100
what is C-I
99
200
what is VII
7
200
what is LXXV
75
200
what is CCLXI
261
200
what is D+D
1000
200
what is D-X
490
300
what is XV
15
300
what is LLXXII
122
300
what is DCCDXIII
1213
300
what is X+X+X+D+C
630
300
what is M-D-X
490
400
what is XXI
21
400
what is CCLLX
310
400
what is MDCLXVI
1666
400
what is M
1000
400
what is M-D
500
500
what is XXXXV
45
500
what is CCCCLL
500
500
what is MMXXLI
2071
500
what is X+X+X+X+X+X+X+I
71
500
what is M-D-X-V-I
484
M
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