
1个回答
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用简便计算
101×37.8-1.25×37.8×0.8
=101×37.8-1.25×0.8×37.8
=101×37.8-37.8
=(101-1)×37.8
=100×37.8
=3780
101×37.8-1.25×37.8×0.8
=101×37.8-1.25×0.8×37.8
=101×37.8-37.8
=(101-1)×37.8
=100×37.8
=3780
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