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18x25x16x125用简便计算

125x25x16x28=125*25*8*2*4*7=(125*8)(25*4)*2*7=1000*100*14=1400000

25X16X125 =25X4X4X125=100X500=500000或25X16X125 =25X2X8X125=50X1000=500000常见化简算式:125X8=100025X4=100

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

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

16x25x125=4x4x25x125=4x25x4x125=(4x25)x(4x125)=100x500=50000

25X16X125 =25X4X4X125=100X500=500000或25X16X125 =25X2X8X125=50X1000=500000常见化简算式,应牢记:125X8=100025X4=100

=25x4x4x125=100x500=50000

原式=(4x4)x(2x8)x25x125=(4x25)x(8x125)x(4x2)=100x1000x8=100000x8=800000

原式=4x4x125x25=4x125x4x25=500x100=50000 或者:8x2x125x25=8x125x2x25=1000x50=50000

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