50+41=
59-40=
70+0=
26-7=
50+28=
87+9=
6+25=
62-8=
50-50=
63-9=
47-3=
69+8=
68+7=
87-5=
33-30=
73+6=
30+43=
37+20=
25-10=
96-80=
97+3=
5+95=
43-8=
90-40=
66-50=
9+27=
79+4=
99-4=
4+11=
44-10=
20+70=
30+27=
28-1=
4+27=
74-20=
29+2=
60+37=
51+20=
18+40=
31+4=