12.8÷[0·5×(23·5-7·5)]

12.8÷[0·5×(23·5-7·5)]
2024-11-02 14:29:53
推荐回答(3个)
回答1:


回答2:

1.6

回答3:

12.8÷[0·5×(23·5-7·5)]
=12.8÷[0·5×16]
=12.8÷8
=1.6