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简算:6.75+6.75*7.6+1.4*6.75
人气:348 ℃ 时间:2020-03-25 08:32:07
解答
6.75+6.75×7.6+1.4×6.75=6.75×1+6.75×7.6+1.4×6.75=6.75×(1+7.6+1.4) =6.75×10=67.5
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