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125x16x25的简便运算

125x16x25=(125*4)*(4*25)=500*100=50000

解: 125x16x25 =(125x4)x(4x25) =500x100 =50000

125x16 =125x(2x8) =(125X8)x2 =1000x2 =2000

125X25x16 =(125x8)x(25x2) =1000x50 =50000

(125×8)×(25×4)×3 =1000×100×3 =300000

25×125×16 =(4×25)×(8×125)÷2 =100×1000÷2 =100000÷2 =50000.

125*8*2*50 =1000*100 =100000

125×25x16 =125×25x8x2 =(125x8)x(25x2) =1000x50 =50000

125×16×7 =125×(8×2)×7 =(125×8)×(2×7) =1000×14 =14000

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