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数学
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56.65-(18.22+16.65)-18.22简便运算
人气:482 ℃ 时间:2019-10-11 03:52:25
解答
56.65-(18.22+16.65)-18.22
=56.65-18.22-16.65-18.22
=(56.65-16.65)-(18.22+18.22)
=40-36.44
=3.56
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