99×0.625＋0.625 递等式计算快
问题描述：
99×0.625＋0.625 递等式计算
快
答
99×0.625＋0.625
＝（99+1）*0.625
＝62.5
答
99×0.625＋0.625
=0.625*(99+1)
=0.625*100
=62.5