57+8= 36-8= 25+70= 68-50=
42+6= 57-3= 7+80= 37-7=
80-60= 46-9= 15-9= 68+5=
9+72= 32-5= 57-30= 71+9=
46-9= 28+5= 6+35= 6+56=
7+8= 57-3= 48-20= 30+25=
83-20= 9+27= 13-6= 89-8=
24-6= 24+30= 54-7= 93-30=
63-8= 41-8= 60-3= 84-80=
39-7= 75-50= 95-70= 24+5=
