10-3=
5+9=
5+3=
9+4=
7+4=
12+2=
6+4=
5+7=
19-6=
8+2=
9+8=
11+5=
4+10=
10+6=
18-8=
8+8=
16-4+6=
2+3+4=
8-3-1=
11-6+3=
2+3+2=
7-6+3=
4+7-2=
4+9+1=