77-70= 88-8= 65-60= 27-7=
85-80= 46-6= 86-80= 43-3=
26-20= 63-3= 56-50= 32-2=
64-60= 26-6= 29-20= 56-6=
87-80= 42-2= 62-60= 84-4=
77-70= 88-8= 65-60= 27-7=
85-80= 46-6= 86-80= 43-3=
26-20= 63-3= 56-50= 32-2=
64-60= 26-6= 29-20= 56-6=
87-80= 42-2= 62-60= 84-4=