3.2*0.25*1.25用简便计算怎么做

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3.2*0.25*1.25用简便计算怎么做3.2*0.25*1.25用简便计算怎么做3.2*0.25*1.25用简便计算怎么做1.25×3.2×0.25=1.25×0.8×4×0.25=(1.25×0

3.2*0.25*1.25用简便计算怎么做
3.2*0.25*1.25用简便计算怎么做

3.2*0.25*1.25用简便计算怎么做
1.25×3.2×0.25
=1.25×0.8×4×0.25
=(1.25×0.8)×(4×0.25)
=1×1
=1

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

可以化简为3.2*1/4*5/4,很容易得出=1

3.2×0.25×1.25
=4×0.8×0.25×1。25
=(4×0.25)×(0.8×1.25)
=1×1
=1

=3.2*1/4*1.25=0.8*1.25=1