494+372=?,268+436=?,474+742=?
748-97=?,935-605=?,926-144=?
48+?=817,270+?=752,304+?=977
63*7=?,6*187=?,815*4=?
213/3=?,472/8=?,873/9=?
---
?-232=881-431,132+158+489+105=?
793-243=?+356,501+397+294-919=?
239+?+321=911,457+446-280-331=?
232+?-582=416,999-209-136-441=?
乱吃药有毒