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56×7.25+3.75×4.56-4.56简便计算
人气:209 ℃ 时间:2020-02-05 20:31:35
解答
4.56×7.25+3.75×4.56-4.56
=4.56×(7.25+3.75-1)
=4.56×10
=45.6
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