28+60= 54+22= 48-40= 54+30=
75-32= 72-40= 62+24= 83-31=
23+25= 36+23= 89-34= 22+75=
54-13= 42+45= 76+20= 44+50=
21+7= 46-6= 24+50= 68-4= 22+5=
1+38= 28-6= 8+30= 5+72= 56-6=
2+87= 20+43= 87-1= 49-9= 78+20=