230乘以54加上540乘以77简便怎么做

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230乘以54加上540乘以77简便怎么做

230乘以54加上540乘以77简便怎么做
230乘以54加上540乘以77简便怎么做

230乘以54加上540乘以77简便怎么做
230*54+540*77
=54*(230+10*77)
=54*1000
=54000

230*54+540*77
=23*540+540*77=540*(23+77)=540*100=54000

230*54+540*77=540*(23+77)=540*100=54000