27+40=
68﹣45=
79+11﹣54=
84﹣30=
36+63=
88﹣24﹣32=
75+19=
97﹣64=
100﹣77+15=
61-24= 54-28= 18+35= 48+19=
32+40=
69-7=
54+10=
62+7-30=
45+8=
26-8=
25+14=
98-(20+50)=