0.75×42.7－0.573×25＋53.7怎么计算
2023-04-26
问题描述：
0.75×42.7－0.573×25＋53.7怎么计算最佳答案：
0.75×42.7－0.573×25＋57.3
=0.75×42.7-57.3×0.25+57.3
=0.75×42.7+57.3(1-0.25)
=0.75×42.7+0.75×57.3
=0.75×(42.7+57.3)
=75
热门标签
2023-04-26
问题描述：
0.75×42.7－0.573×25＋53.7怎么计算最佳答案：
0.75×42.7－0.573×25＋57.3
=0.75×42.7-57.3×0.25+57.3
=0.75×42.7+57.3(1-0.25)
=0.75×42.7+0.75×57.3
=0.75×(42.7+57.3)
=75
热门标签