能简便的就简便.在线等.就3道.23*75%+17*4分之3 (29分之2+23分之3)*29*23 7.9*9975%呢...
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/06 16:10:31
![能简便的就简便.在线等.就3道.23*75%+17*4分之3 (29分之2+23分之3)*29*23 7.9*9975%呢...](/uploads/image/z/14673265-25-5.jpg?t=%E8%83%BD%E7%AE%80%E4%BE%BF%E7%9A%84%E5%B0%B1%E7%AE%80%E4%BE%BF.%E5%9C%A8%E7%BA%BF%E7%AD%89.%E5%B0%B13%E9%81%93.23%2A75%25%2B17%2A4%E5%88%86%E4%B9%8B3++++++++%2829%E5%88%86%E4%B9%8B2%2B23%E5%88%86%E4%B9%8B3%29%2A29%2A23+++++7.9%2A9975%25%E5%91%A2...)
能简便的就简便.在线等.就3道.23*75%+17*4分之3 (29分之2+23分之3)*29*23 7.9*9975%呢...
能简便的就简便.在线等.就3道.
23*75%+17*4分之3 (29分之2+23分之3)*29*23 7.9*99
75%呢...
能简便的就简便.在线等.就3道.23*75%+17*4分之3 (29分之2+23分之3)*29*23 7.9*9975%呢...
23*75%+17*4分之3
=(23+17)*3/4
=40*3/4
=30
(29分之2+23分之3)*29*23
=2/29*29*23+3/23*29*23
=2*23+3*29
=46+87
=133
7.9*99
=7.9*(100-1)
=7.9*100-7.9
=790-7.9
=782.1