59+?=742,403+?=818,384+?=959
436-28=?,758-143=?,842-374=?
326+483=?,268+554=?,421+663=?
15*8=?,32*5=?,80*3=?
28/?=?,54/3=?,100/5=?
---
?-326=710-425,175+213+318+155=?
703-273=?+387,338+124+273-607=?
247+?+303=924,428+254-173-368=?
236+?-406=265,999-303-186-329=?
天气变凉爽