7.58+5.39-8.27简便算法

来源：学生作业学帮网编辑：学帮网时间：2024/05/28 18:19:51

7.58+5.39-8.27
简便算法

7.58+5.39-8.27
=7.58+0.02+5.39+0.01-8.27-0.03
=7.6+5.4-8.3
=13-8.3
=4.7

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