发布网友 发布时间:2022-04-23 14:39
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热心网友 时间:2022-05-26 22:26
搜同
6.7×0.83+2.7×0.67-0.67
=0.67×8.3+2.7×0.67-0.67
=0.67×(8.3+2.7-1)
=0.67×10
=6.7