10+10
20
20-5
15
2x2
4
100/10
10
25+25
50
54-21
33
12x11
132
63/9
7
km = ?
167
93-18
75
100x3
300
84/4
21
5
326+215
541
121
204x4
816
969/3
323
550
649+271
920
541-327
214
437x3
1,311
426/3
142
LXIV
64
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