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简算[0.75×42.7－0.573×25＋57.3]÷3×760

分类: 作业答案 • 2021-12-31 14:01:34
问题描述：

简算[0.75×42.7－0.573×25＋57.3]÷3×760

答

[0.75×42.7－0.573×25＋57.3]÷3×760
=[0.75×42.7－57.3×0.25＋57.3]÷3×760
=[0.75×42.7+57.3×0.75]÷3×760
=[0.75×(42.7+57.3)]÷3×760
=75÷3×760
=25×4×190
=100×190
=19000

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