18-9=
10-9=
19-9=
16-9=
17-9=
11-9=
12-9=
19-9=
17-9=
15-9=
18-9=
13-9=
14-9=
18-9=
19-9=
14-9=
13-9=
12-9=
16-9=
15-9= 16-8=
14-8=
17-8=
12-8=
11-8=
13-8=
15-8=
17-8=
11-7=
15-7=
16-7=
12-7=
14-7=
13-7=
15-8=
14-7=
17-8=
12-7=
16-8=
17-9= 15-9=
16-8=
12-7=
13-8=
17-8=
11-9=
13-9=
15-7=
14-8=
14-9=
13-7=
16-9=
18-9=
12-9=
16-7=
11-8=
14-8=
15-8=
17-9=
15-7= 11-7=
16-8=
11-9=
13-8=
13-7=
18-9=
12-8=
12-7=
15-9=
13-7=
16-7=
16-8=
12-9=
16-9=
14-8=
14-7=
12-7+8=
16-8+9=
17-8+6=
16-7-2= 17-8=
14-9=
18-8=
16-7=
15-8=
11-8=
12-7=
17-9=
14-7=
12-8=
15-7=
13-9=
12-9=
16-6=
18-9=
17-9=
15-8○14-8
11-7○11-9
14-9○17-8
13-7○12-9