86-8=
60-50=
85-2=
81-9=
76-9=
70-28=
89-50=
78-10=
83-20=
40-7=
20-8=
66-9=
40-8=
70-9=
44-8=
62-7=
67-7=
26-7=
53-9=
83-7=
97-30=
75-9=
47-9=
46-6=
91-3=
72-8=
38-3=
98-7=
67-6=
33-33=
60-50=
85-2=
81-9=
76-9=
70-28=
89-50=
78-10=
83-20=
40-7=
20-8=
66-9=
40-8=
70-9=
44-8=
62-7=
67-7=
26-7=
53-9=
83-7=
97-30=
75-9=
47-9=
46-6=
91-3=
72-8=
38-3=
98-7=
67-6=
33-33=