125*(8+40)*25的简便算法怎样计算?

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125*(8+40)*25的简便算法怎样计算?

125*(8+40)*25的简便算法怎样计算?
125*(8+40)*25的简便算法怎样计算?

125*(8+40)*25的简便算法怎样计算?
125*(8+40)*25
=125*8*(1+5)*25
=1000*6*25
=1000*3*50
=150000

125*(8+40)*25
=125*8*25+125*40*25
=25000+125000
=150000

=125*8*25+125*40*25
=(125*8)*25+125*(40*25)
=1000*25+125*1000
=1000*(25+125)
=1000*150
=150000

125*(8+40)*25
=125x8x25+125x40x25
=1000x25+125x100
=25000+12500
=37500

125*(8+40)*25
=(125x8+125x40)x25
=(1000+500)x25
=1000x25+500x25
=25000+12500
=37500