9+?=93,24+?=88,66+?=160
?-23=61,?-37=73,?-32=168
99-?=23,165-?=51,289-?=193
32+55=?,43+154=?,166+148=?
?*4=28,5*?=45,?*9=63
---
?-45=123-62,18+63+74+31=?
99-38=?+24,25+67+32-123=?
81+?+48=155,49+95-53-75=?
68+?-34=112,400-56-153-142=?
猫狗龟兔狐