用简便方法计算:(-3.14)*35.2+6.28*(-23.3)-1.57*36.4
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/04 07:21:36
![用简便方法计算:(-3.14)*35.2+6.28*(-23.3)-1.57*36.4](/uploads/image/z/34419-3-9.jpg?t=%E7%94%A8%E7%AE%80%E4%BE%BF%E6%96%B9%E6%B3%95%E8%AE%A1%E7%AE%97%EF%BC%9A%EF%BC%88-3.14%EF%BC%89%2A35.2%2B6.28%2A%EF%BC%88-23.3%EF%BC%89-1.57%2A36.4)
用简便方法计算:(-3.14)*35.2+6.28*(-23.3)-1.57*36.4
用简便方法计算:(-3.14)*35.2+6.28*(-23.3)-1.57*36.4
用简便方法计算:(-3.14)*35.2+6.28*(-23.3)-1.57*36.4
=(-6.28)*17.6+6.28*(-23.3)-6.28*9.1=6.28*(-17.6-23.3-9.1)=6.28*(-50)=-314