0.25×1.25+2.5×0.075简便方法运算

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0.25×1.25+2.5×0.075简便方法运算0.25×1.25+2.5×0.075简便方法运算0.25×1.25+2.5×0.075简便方法运算0.25×1.25+2.5×0.075=0.25×

0.25×1.25+2.5×0.075简便方法运算
0.25×1.25+2.5×0.075简便方法运算

0.25×1.25+2.5×0.075简便方法运算
0.25×1.25+2.5×0.075=0.25×1.25+0.25×0.75=0.25×(1.25+0.75)=0.25×2=0.5