30+60
90
25-10
15
5x10
50
16/2
8
17+70
87
30-16
14
2x77
154
50/5
10
400+400
800
60-7
53
9x7
63
50/2
25
108+108
216
90-60
30
37x3
111
100/50
2
525+525
1050
500-87
413
67x10
670
888/8