4.4+4.4*12+13*5.6怎么简便计算_数学解答

4.4+4.4*12+13*5.6怎么简便计算

人气：109 ℃　时间：2020-01-27 18:05:27

解答

4.4+4.4*12+13*5.6
=4.4+4.4*12+13*(10-4.4)
=4.4+4.4*12+13*10-13*4.4
=4.4*(1+12-13)+13*10
=4.4*0+130
=130