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1.25x3.2x0.25这题怎样简便计算。

1.25x3.2x0.25 =1.25x0.8x4x0.25 =1x1 =1

1.25×3.2×0.25用简便计算 =1.25x4x0.8x0.25 =(1.25x0.8)x(4...

0.25x3.2x1.25 =0.25x4x0.8x1.25 =(0.25x4)x(0.8x1....

=0.25×(4×0.8)×1.25 =(0.25×4)×(0.8×1.25) =1×1 =1

0.25x1.25x3.2 =0.25x4x1.25x0.8 =1x1 =1

1.25x3.2x2.5 =1.25x8x0.4x2.5 =10x1 =10

1.25X0.25X3.2 =1.25x(0.8x4)x0.25 =(1.25x0.8)(0.2...

原式 =1.25*0.8*4*0.25 =1*1 =1 满意采纳奥

(3.2x4.8)+(1.25x1.25)

=(1.25×0.8)×(0.21×4) =1×0.84 =0.84

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