146=8
13-6=
13-7=
11-9=
11-2=
13-9=
13-4=
12-7=
12-5=
+9=
7+=
-9=
16-=
+= -=
16-7= 15-8= 12-6= 13-5= 18-9=
11-9= 13+4= 12+8= 12-6= 19-6=
0+10= 4+9= 11-5= 16-6= 11-9=
12-7= 15-8= 6+13= 14-9= 9+6=
7+>10 3+=5+