Tablas
6 X 7
42
50 - 30
20
XXV
25
30 + 38
68
8 +? = 10
2
7 X 4
28
80 - 40
40
LIII
53
80 + 80
160
40 + ? = 50
10
9 X 8
72
50 - 1
49
CXXX
130
1,000 + 750
1, 750
20 - ? = 19
1
11 X 4
44
1,000 - 500
500
VALOR DE DV
505
2,000 + 2,400
4,400
40 - ? = 20
20
22 X 4
88
430 - 100
330
VALOR DE MMMCCLXIII
3,263
1,800 + 100
1,900
5 X? = 20
ES 4