请问:(用简便方法计算)谢谢!569*18-8*669+8*100
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/22 09:57:18
![请问:(用简便方法计算)谢谢!569*18-8*669+8*100](/uploads/image/z/54833-41-3.jpg?t=%E8%AF%B7%E9%97%AE%EF%BC%9A%EF%BC%88%E7%94%A8%E7%AE%80%E4%BE%BF%E6%96%B9%E6%B3%95%E8%AE%A1%E7%AE%97%EF%BC%89%E8%B0%A2%E8%B0%A2%21569%2A18-8%2A669%2B8%2A100)
请问:(用简便方法计算)谢谢!569*18-8*669+8*100
请问:(用简便方法计算)谢谢!569*18-8*669+8*100
请问:(用简便方法计算)谢谢!569*18-8*669+8*100
569×18-8×669+8×100
=569×18-8×(669-100)
=569×18-8×569
=569×(18-8)
=569×10
=5690