6+5=
13-7=
42+5=
50+22=
37+20=
8+71=
59-7=
76-40=
48-7=
15-9=
12-4=
65-4=
80-20=
30+38=
72-40=
78-6=
45+40=
14-6=
20+60=
32+50=