UC知道四年级数学作业，用简便方法运算
来源：百度知道 编辑：UC知道 时间：2024/05/06 10:16:39
125*16*25
=
=
25*32*125
=
=
=
=
=
25*32*125
=
=
=
125*4*4*25
=500*100
=50000
25*32*125
=25*4*8*125
=100*1000
100000
125*16*25
=125*4*4*25
=500*100
=50000
25*32*125
=25*8*4*125
=200*500
=100000
125*16*25
=125*4*4*25
=500*100
=50000
25*32*125
=25*8*4*125
=200*500
=100000
125*16*25
= 125*8*2*25
= (125*8)*(2*25)
=1000*50
=50000
25*32*125
=25*4*8*125
= (25*4)*(8*125)
=100*1000
=100000
125*4*4*25
=500*100
=50000
25*32*125
=25*4*8*125
=100*1000
100000
够简单了
125×16×25＝（125×8）×（2×25）＝1000×50＝50000
25×32×125＝（25×4）×（8×125）＝100×1000＝100000
选我为最佳答案啊，谢谢