9.72*1.6-18.305/7简便584+8008/26*15简便..

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9.72*1.6-18.305/7简便584+8008/26*15简便..9.72*1.6-18.305/7简便584+8008/26*15简便..9.72*1.6-18.305/7简便584+800

9.72*1.6-18.305/7简便584+8008/26*15简便..
9.72*1.6-18.305/7简便
584+8008/26*15简便..

9.72*1.6-18.305/7简便584+8008/26*15简便..
9.72*1.6-18.305/7
=(10-0.28)*1.6-2.615
=16-0.448-2.615
=12.937
584+8008/26*15
=584+308*15
=4*(146+77*15)
=4*(146+1155)
=4*1301
=5204