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21.36除以0.8-13.36除以0.8怎样简算?
人气:221 ℃ 时间:2020-03-24 19:08:28
解答
21.36÷0.8-13.36÷0.8
=(21.36-13.36)÷0.8
=8÷0.8
=10
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