图
解:125×(8+40)×25
=[125×8+125×40]×25
=[1000+10000]×25
=1000×25+10000×25
=25000+250000
=275000
谨记
正确:
125×(8+40)×25
=125×8×25+8×25×125
错误:
125×(8+40)×25
=125×8+40×25
125*(8+40)*25=150000
125×(8+40)×25
=125×48×25
=125×8×6×25
=1000×6×25
=6000×25
=150000