原式=25✘40✘38=1000✘38=38000....原式=4✘25✘125=100✘125=12500,,8✘125✘9=1000✘9=9000.........365✘(50✘2)=365✘100=36500,,,,25✘4✘(27✘2)=100✘54=5400.......125✘8(50✘4)=1000✘200=200000
先算得后面是0如25x4=100x27=2700x2=5400
38*25*40
=38*(25*40)
=38*1000
=38000
4*(25*125)
=4*25+4*125
=100+500
=600
8*9*125
=8*125*9
=1000*9
=9000
365*50*2
365*(50*2)
=365*100
=36500
25*27*4*2
=25*4*(27*2)
=100*54
=5400
125*50*8*4
=125*8*(50*4)
=1000*20
=20000