13个回答
展开全部
6.7×0.99
=6.7×(1-0.01)
=6.7-0.067=6.633
=6.7×(1-0.01)
=6.7-0.067=6.633
展开全部
6.7*0.99
=6.7*(1-0.01)
=6.7-0.067
=6.633
=6.7*(1-0.01)
=6.7-0.067
=6.633
展开全部
=6.7*(1-0.01)
=6.7-6.7*0.01
=6.7-0.067
=6.633
乘法分配率
=6.7-6.7*0.01
=6.7-0.067
=6.633
乘法分配率
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