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25x125x32脱式简便计算

25x125x32=25×4×125×8=100×1000=100000

(25x4)x(125x8) =100x1000 =100000

125x25x32简便脱式 125x25x32 =125*8*25*4 =1000*100 =100000

=125x(8x4) =(125x8)x (125x4) =1000x500 =500000

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