101×51.8-1.25×51.8×0.8怎么简便计算?(要写过程)

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101×51.8-1.25×51.8×0.8怎么简便计算?(要写过程)
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101×51.8-1.25×51.8×0.8怎么简便计算?(要写过程)
101×51.8-1.25×51.8×0.8怎么简便计算?(要写过程)

101×51.8-1.25×51.8×0.8怎么简便计算?(要写过程)
101×51.8-1.25×51.8×0.8
=51.8*(101-1.25*0.8)
=51.8*100
=5180

101×51.8-1.25×51.8×0.8
=(100+1-1.25×0.8)×51.8
=100×51.8
=5180

101×51.8-1.25×51.8×0.8
=51.8*(101-1.25*0.8)
=51.8*100
=5180