64-45= 86-59= 55+18=
71-(65-43)= 81-9-25= 58+23-19=
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)=
45+8= 26+47= 92-7=
29+15= 64-27= 35+63=
54+35= 28+49= 62-27=
82-37= 85-32= 46+24=
90-54= 38+44= 70-7=
29+26= 56-33= 53-45=
①58+29=
②71-32=
③64+18=
④48+52=
⑤90-76=
⑥72-18=