简便计算(1+023+0.34)*(0.23+0.34+0.65)-(1+0.23+0.34+0.65)*(0.23+0
来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/08/27 12:05:42
简便计算(1+023+0.34)*(0.23+0.34+0.65)-(1+0.23+0.34+0.65)*(0.23+0.34)
(1+023+0.34)*(0.23+0.34+0.65)-(1+0.23+0.34+0.65)*(0.23+0.34)
=(1+023+0.34)*(0.23+0.34+0.65)-(0.23+0.34+0.65)*(0.23+0.34)-(0.23+0.34)
=(0.23+0.34+0.65)*【(1+023+0.34)-(0.23+0.34)】-(0.23+0.34)
=(0.23+0.34+0.65)*1--(0.23+0.34)
=0.65
=(1+023+0.34)*(0.23+0.34+0.65)-(0.23+0.34+0.65)*(0.23+0.34)-(0.23+0.34)
=(0.23+0.34+0.65)*【(1+023+0.34)-(0.23+0.34)】-(0.23+0.34)
=(0.23+0.34+0.65)*1--(0.23+0.34)
=0.65
简便计算(1+023+0.34)*(0.23+0.34+0.65)-(1+0.23+0.34+0.65)*(0.23+0
简便计算:(1+0.23+0.34)*(0.23+0.34+0.65)-(1+0.23+0.34+0.65)*(0.23
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