54327-408×23÷24
=54327-17×24×23÷24
=54327-17×23
=54327-391
=53936
80×61－65.2÷32
=80×(60+1)-(64+1.2)÷32
=4800+80-2-3/80
=4878-3/80
=4877又80分之77
54327-408×23÷24简算80×61－65.2÷32简算
54327-408×23÷24
=54327-17×24×23÷24
=54327-17×23
=54327-391
=53936
80×61－65.2÷32
=80×(60+1)-(64+1.2)÷32
=4800+80-2-3/80
=4878-3/80
=4877又80分之77