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2.5x0.32x1.25能简算吗?

2.5*0.4*0.8*1.25 1*1 1

能。 原式=(2.5×4)×(0.08×1.25) =10×0.1 =1

2.5*0.4*1.25*0.8

2.5X0.32X1.25 =(2.5×0.4)×(0.8×1.25) =1×1 =1

2.5x0.32x1.25 =(2.5x0.4)x(0.8x1.25) =10x1 =10

1.25×0.32×1.25 =(1.25×0.8)*(0.4×1.25) =1*0.5 =0.5

答:把0.32拆成0.4×0·80.32x2.5x1.25=1x1=1

=0.04×8×2.5×1.25 =0.04×2.5×8×1.25 =0.1×10 =1

2.5x1.25x0.32 =2.5×1.25×(0.4×0.8) =(2.5×0.4)×(1.25×0.8) =1×1 =1

=1.5ⅹ0.4ⅹ(0.8ⅹ1.25)二 =0.6ⅹ1 =0.6

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