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125X16用简便方法计算

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

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

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

50x125x16用简便方法计算 =50*2*125*8 =100*1000 =100000

125x16x5 =125x8x2x5 =1000x10 =10000

0.125x16 =0.125x8x2 =1x2 =2

原式 =125x16x39 =(125x8)x(2x39) =1000x78 =78000

125×35×16 =125×35×4×4 =500×140 =70000

54X125X16X8X625 =54X(125X8)X(2X8X5X125) =54X1000X10X1000 =540000000

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