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25x16x125x7脱式计算

25x16x25=25x4x25x4=10000

25x4x2x8x125x7=100x2x1000x7=100000x14=1400000

25*16*125 =25*4*4*125 =(25*4)*(4*25*5) =100*500=50000

x=25/16x=5/4 或者x=-5/4

2*8*25*1252*25*8*12550*10005000

=25*4*4*125=100*500=50000

2512x7 脱式计算?25*12*7=300*7=2100

25*16*125=25*(2*8)*125=(25*2)*(8*125)=50*1000=50000

16X25X125=(4x25)x(4x125)=100x500=50000

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