9.8*0.74+0.148的简便运算

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9.8*0.74+0.148的简便运算9.8*0.74+0.148的简便运算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

9.8*0.74+0.148的简便运算
9.8*0.74+0.148的简便运算

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