> 数学 >
6.75-2.75÷[10%×(9.75-
17
4
)].
人气:439 ℃ 时间:2019-09-09 18:24:37
解答
6.75-2.75÷[10%×(9.75-
17
4
)]
=6.75-2.75÷[10%×5.5]
=6.75-2.75÷0.55
=6.75-5
=1.75.
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