--=
9-3-4=
0+9= 10-2= 7+4=
15-5= 9-4= 8+5=
7+6= 7-0= 8-8=
9+3= 5-2= 10-3=
17-7-3= 9-4+5= 10-3-4=
8-4-2= 6-5+3= 10-2-6=
7+3-5= 3+2+5= 7+1+2=
9-1-5= 7-4+6= 3+7-4=
9+5= 8+20= 16-7= 4+8-7=
13-6= 45-5= 40+6= 19-10-2=
14-8= 15-6= 17-8= 14-6-3=