0+4=
3+6=
7+2=
9-3=
10-0=
8-4=
9+0=
7-5=
3+7=
4+3=
(人)
11-2= 14-4= 13-7= 16-9= 12-5=
15-5= 17-6= 12-8= 17-8= 20-5=
3-3= 4-0= 5-3= 0+5=
2+3= 4+0= 4-3= 5-5=
4+2= 5+2= 6-5= 8-6=
4+0= 9-9= 4-1= 3+7=
10-8= 2+6= 1+7= 3+5=
8+413 17-1011 8+87+7
6+410 9+618 8+319-9
问题: ?
算式: