简便计算:230×54+540×77=
问题描述:
简便计算:230×54+540×77=
答
230×54+540×77=54x(230+10x77)=54x1000=54000
答
230×54+540×77
=230×54+54×770
=54×(230+770)
=54×1000
=54000
答
230×54+540×77
=23×540+540×77
=540×(23+77)
=540×100
=54000
答
54*(230+10*77)=54*1000=54000
答
230×54+540×77
=540×﹙23+77﹚
=540×100
=54000