2+?=68,32+?=75,68+?=192
?-65=68,?-43=76,?-32=183
85+42=?,66+168=?,136+256=?
4*6=?,7*5=?,8*9=?
32/8=?,27/9=?,16/4=?
---
?-138=277-123,68+75+84+93=?
146-86=?+32,77+65+136-221=?
76+?+74=257,152+83-95-98=?
86+?-37=182,500-172-213-73=?
酷暑难耐热