12.5*0.88用多种简便方法计算_数学解答

12.5*0.88用多种简便方法计算

人气：189 ℃　时间：2020-02-16 11:43:37

解答

12.5*0.88
=（100/8）*0.88
=100*0.11
=11
12.5*0.88
=12.5*（0.8+0.08）
=12.5*0.8+12.5*0.08
=10+1
=11