0.78×98简便计算方法
问题描述:
0.78×98简便计算方法
答
= 0.78 × (100 - 2) = 0.78 × 100 - 0.78 × 2 = 78 - 1.56 = 76.44
0.78×98简便计算方法
= 0.78 × (100 - 2) = 0.78 × 100 - 0.78 × 2 = 78 - 1.56 = 76.44