4.6k
3.33k
15-2-3=
7-4+7=
7+11-10=
7+7-10=
8-5+7=
12+1-2=
15-4+1=
16+2-5=
11-7+11=
18-1-4=
16+3-3=
5+7+4=
6-4+13=
10-7+9=
7-5+1=
12-7-2=
2+9+8=
15-8+2=
18-8+3=
6+5+4=
4+12-2=
13+3-7=
10+2+5=
2+7+10=
18-2-4=
15-3+4=
19-4+3=
5+5+7=
16-8+7=
16-5-10=
5+5-4=
2-1+7=
4-4+14=
11+3-2=
7+2-7=
11-8+8=
14-8-6=
10+1+8=
19-1-6=
5+1+12=
反馈