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7.3○12○0.72○0.8 =7.3○12○0.9 =7.3○10.8 =18.1

分类: 作业答案 • 2022-01-09 18:05:33

问题描述：

7.3○12○0.72○0.8 =7.3○12○0.9 =7.3○10.8 =18.1

答

7.3+12÷(0.72÷0.8 )=7.3+12÷0.9 =7.3+10.8 =18.1