187.6×9.9+18.76怎么简算
问题描述:
187.6×9.9+18.76怎么简算
十万火急!
答
187.6 X9.9+18.76=18.76X99+18.76=18.76X(99+1)=18.76X100=1876
187.6×9.9+18.76怎么简算
十万火急!
187.6 X9.9+18.76=18.76X99+18.76=18.76X(99+1)=18.76X100=1876