数学题!向高手求助!18.76x9.9+18.76怎么做?

数学题!向高手求助!18.76x9.9+18.76怎么做?
数学题!向高手求助!18.76x9.9+18.76怎么做?

数学题!向高手求助!18.76x9.9+18.76怎么做?
=18.76*（9.9+1）
=18.76*9.9+18.76*1
=86.724+18.76
=105.484

把18.76看成一个苹果，9.9个苹果加一个苹果等于10.9个苹果。则18.76*9.9+18.76=18.76*10.9=105.484
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