3.57+100.1 简便方法3.14乘以0.88加上5.86乘以0.88加上0.88等于?_数学解答

3.57+100.1 简便方法
3.14乘以0.88加上5.86乘以0.88加上0.88等于?

人气：208 ℃　时间：2020-06-21 12:15:54

解答

3.57+100.1
=3.57+（100+0.1）
=3.57x100+3.57x0.1
=357+0.357
=357.357
3.14x0.88+5.86x0.88+0.88
=3.14x0.88+5.86x0.88+0.88x1
=(3.14+5.86+1)x0.88
=10x0.88
=8.8