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这道计算题怎么简算?9.81×0.1+0.5×98.1+0.049×981

来源:学生作业帮 编辑:神马作文网作业帮 分类:数学作业 时间:2024/11/10 17:13:33
这道计算题怎么简算?
9.81×0.1+0.5×98.1+0.049×981
这道计算题怎么简算?9.81×0.1+0.5×98.1+0.049×981
9.81×0.1+0.5×98.1+0.049×981
=981×0.001+0.05×981+0.049×981
=981×(0.001+0.05+0.049)
=981×0.1
=98.1