4.25-(18.1-15.27)简便计算,可以简便吗?和3.84-2.9+2.16-3.1_数学解答

4.25-(18.1-15.27)简便计算,可以简便吗?和3.84-2.9+2.16-3.1

人气：138 ℃　时间：2020-01-29 13:15:29

解答

4.25-(18.1-15.27)
=4.25+15.27-18.1
=19.52-18.1
=1.42
3.84-2.9+2.16-3.1
=(3.84+2.16)-(2.9+3.1)
=6-6
=017.05+4.18-7.05+4.82呢？怎么写？O(∩_∩)O谢谢