9.8*0.74+0.148的简便运算
来源:学生作业学帮网 编辑:学帮网 时间:2024/06/05 11:05:23
9.8*0.74+0.148的简便运算
=9.8*0.74+0.2*0.74
=(9.8+0.2)*0.74
=10*0.74
=7.4
9.8*0.74+0.148
=(10-0.2)*0.74+0.148
=7.4
=(98*74+148)/1000
=[(100-2)*74+148]/1000
=[7400-2*74+148]/1000
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来源:学生作业学帮网 编辑:学帮网 时间:2024/06/05 11:05:23
9.8*0.74+0.148的简便运算
=9.8*0.74+0.2*0.74
=(9.8+0.2)*0.74
=10*0.74
=7.4
9.8*0.74+0.148
=(10-0.2)*0.74+0.148
=7.4
=(98*74+148)/1000
=[(100-2)*74+148]/1000
=[7400-2*74+148]/1000