8+50=
14-6=
17-8=
13-4-3=
56-50=
47-7=
15-9=
3+4+9=
78-8=
13-8=
11-2=
6+7-5=
20+9=
14-8=
15-7=
12-6+4=
78-=70 +10=90
66-=6 -9=9
9-3=
12+4=
17-4=
9+7+3=
2+8=
18-9=
60-30=
12-8-4=
6+5=
11-4=
5+7=
14-6+7=
17+3=
13-7=
9+5-9=
16-9=