750乘43加430乘25 怎样简便
问题描述:
750乘43加430乘25 怎样简便
答
750×43+430×25
=750×43+43×250
=(750+250)×43
=1000×43
=43000
答
750×43+430×25
=75×430+430×25
=(75+25)×430
=100×430
=43000
答
750×43+430×25
=750×43+43×10×25
=43×(750+10×25)
=43×1000
=43000