怎么简算14.3*0.2*7.5-10*0.15*4.3 怎么简算
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怎么简算14.3*0.2*7.5-10*0.15*4.3怎么简算怎么简算14.3*0.2*7.5-10*0.15*4.3怎么简算怎么简算14.3*0.2*7.5-10*0.15*4.3怎么简算14.3
怎么简算14.3*0.2*7.5-10*0.15*4.3 怎么简算
怎么简算
14.3*0.2*7.5-10*0.15*4.3 怎么简算
怎么简算14.3*0.2*7.5-10*0.15*4.3 怎么简算
14.3*0.2*7.5-10*0.15*4.3
=14.3*1.5-1.5*4.3
=1.5*(14.3-4.3)
=1.5*10
=15
14.3*0.2*7.5-10*0.15*4.3
=10*0.2*7.5+4.3*0.2*7.5-10*0.15*4.3
=10*1.5+4.3*1.5-1.5*4.3
=10*1.5
=15
14.3*0.2*7.5-10*0.15*4.3
=14.3*(0.2*7.5)-(10*0.15)*4.3
=14.3*1.5-1.5*4.3
=(14.3-4.3)*1.5
=10*1.5
=15