16*1.25-1.25/0.25的简便计算

问题描述:

16*1.25-1.25/0.25的简便计算

16*1.25-1.25/0.25 =16×1.25-1.25×4 =1.25×(16-4) =1.25×12 =1.25×4×3 =5×3 =15