27.8乘0.25+71.2乘5.64+5.64简便计算

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27.8乘0.25+71.2乘5.64+5.64简便计算
27.8乘0.25+71.2乘5.64+5.64
简便计算

27.8乘0.25+71.2乘5.64+5.64简便计算
27.8*0.25+71.2*5.64+5.64
=27.8*0.25+5.64*(71.2+1)
=27.8*0.25+72.2*5.64
=27.8*0.25+72.2*(0.25+5.39)
=27.8*0.25+72.2*0.25+72.2*5.39
=0.25*100+72.2*5.39
=25+389.158
=414.158

27.8乘0.25=6.95
71.2乘5.64=401.568
即27.8乘0.25+71.2乘5.64+5.64=6.95+401.568+5.64=414.158

27.8乘0.25+71.2乘5.64+5.64
=27.8*0.25+71.2*5.64+5.64
=27.8*0.25+5.64*(71.2+1)
=27.8*0.25+5.64*72.2
=56.4*0.125+5.64*72.2
=5.64*1.25+5.64*72.2
=5.64*(1.25+72.2)
=5.64*73.45
=414.258

不知道这是不是最简单的.试下
27.8*0.25+71.2*5.64+5.64
＝27.8*0.25+（71.2*5.64+1*5.64）
＝27.8*0.25+72.2*5.64
＝...

27.8乘0.25+71.2乘5.64+5.64简便计算 64乘0.125乘0.5乘0.25 (-5)乘8乘(-7)乘(-0.25) 27.8乘5.64加71.2乘5.64加5.64怎么简便计算 32乘0.25乘12.5乘0.2乘5简便 3.4乘7乘1.5 0.8乘0.25乘0.4乘12.5的简便运算 0.25乘0.8乘40乘5乘12.5乘0.2 3.4乘7乘1.5 0.8乘0.25乘0.4乘12.5 1.25 乘0.25乘61乘16的简便计算 . 14.72乘12.5乘3.2乘0.25简便运算 0.125乘0.25乘8乘4怎么简便计算 0.125乘0.25乘0.5乘0.64怎么简算? 0.5乘0.25乘0.125乘64这倒奥数题怎么解答 1.25乘0.25乘3232乘9.1等于多少 1.25乘0.25乘60乘16怎样简便计算 38乘四分之一+17乘0.25加45乘25％ 简算 0.25乘0.375乘0.4乘16=? （-5）乘8乘（-7）乘（-0.25）