简便算74×25+25×13×2
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简便算74×25+25×13×2简便算74×25+25×13×2简便算74×25+25×13×274×25+25×13×2=74×25+25×26=25×(74+26)=25×100=250074×2
简便算74×25+25×13×2
简便算74×25+25×13×2
简便算74×25+25×13×2
74×25+25×13×2=74×25+25×26=25×(74+26)=25×100=2500
74×25+25×13×2
=25×(74+13×2)
=25×(74+26)
=25×100
=2500
简便算74×25+25×13×2
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