30+47=
63-31=
12+21=
15+35=
78-34=
36+42=
21+28=
38-22=
5+66=
65-12= 27+11= 61+29= 92-42= 12+80=
33+57= 75-20= 35-11= 28+52= 96-16=
20+6= 85+3= 2+38=
65+20= 96-50= 81-9=
52-22= 80-50-30= 32+20-2=
88+0= 68-3= 12+45= 63+36= 54+45=
24-0= 68+3= 54+26= 24+42= 17+71=