1.25×3.2×o.25 的简便计算

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1.25×3.2×o.25 的简便计算
1.25×3.2×o.25 的简便计算

1.25×3.2×o.25 的简便计算
1.25×3.2×o.25
=1.25×(0.8×4)×0.25
=(1.25×0.8)×(4×0.25)
=1×1
=1

1.25×3.2×o.25
=1.25×0.8×4×o.25
=1×1
=1

1.25×3.2×o.25 =5/4×16/5×1/4=1

1.25x3.2x0.25
=1.25x0.8x4x0.25
=(1.25x0.8)x(4x0.25)
=1x1
=1

原式=【0.8*4】*1.25*0.25
=0.8*1.25*4*0.25
=1*1
=1