14-6=
13-6=
15-7=
8-4+9=
9+7=
41-1=
12-4=
16-3-10=
63-3=
20+3=
37-7=
3+7+4=
13-5=
30+4=
11-8=
18-9+60=
6+40=
36-6=
9+4=
5+10-7=
15-79 45-550 57-505
4+813 7+6076 12-57
11-3=
25-5=
14-6+4=
53-3=
8+70=
13-9+10=
66-60=
19-7=
73-70+14=
= (个) = (个)