19.98*37-1998.8*1.9+19998等于多少(过程)
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/01 06:33:42
![19.98*37-1998.8*1.9+19998等于多少(过程)](/uploads/image/z/1051169-41-9.jpg?t=19.98%2A37-1998.8%2A1.9%2B19998%E7%AD%89%E4%BA%8E%E5%A4%9A%E5%B0%91%28%E8%BF%87%E7%A8%8B%29)
19.98*37-1998.8*1.9+19998等于多少(过程)
19.98*37-1998.8*1.9+19998等于多少(过程)
19.98*37-1998.8*1.9+19998等于多少(过程)
19.98*37-1998.8*1.9+19998
=1998*0.37-(1998+0.8)*1.9+19998
=1998*0.37-1998*1.9-0.8*1.9+19998
=1998*(0.37-1.9)-0.8*1.9+19998
=-1998*1.53-0.8*1.9+19998
=16939.54