58×98怎么简算啊
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/04 19:32:49
![58×98怎么简算啊](/uploads/image/z/4408-16-8.jpg?t=58%C3%9798%E6%80%8E%E4%B9%88%E7%AE%80%E7%AE%97%E5%95%8A)
58×98怎么简算啊
58×98怎么简算啊
58×98怎么简算啊
58×98
=58×(100-2)
=58×100-58×2
=5800-116
=5684
58*98
=(60-2)(100-2)
=6000-200-120+4
=5684
58×98
=58×(100-2)
=58×100-58×2
=5800-116
=5684
=58*(100-2)
=5800-(60-2)*2
=5800-120+4
=5684
58(100-2)=5800-116=5684
可以先58*100,再减去58*2
(60-2)*(100-2)
=6000-120-200+4
=5684