简便计算(519/123+657/324+573/947)×(657/324+573/947+246/173)—(519/123+657/324+573/947+246/173)×(657/324+573/947)赶紧的!
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/05 05:04:44
![简便计算(519/123+657/324+573/947)×(657/324+573/947+246/173)—(519/123+657/324+573/947+246/173)×(657/324+573/947)赶紧的!](/uploads/image/z/754821-45-1.jpg?t=%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%EF%BC%88519%2F123%2B657%2F324%2B573%2F947%29%C3%97%28657%2F324%2B573%2F947%2B246%2F173%29%E2%80%94%28519%2F123%2B657%2F324%2B573%2F947%2B246%2F173%29%C3%97%28657%2F324%2B573%2F947%29%E8%B5%B6%E7%B4%A7%E7%9A%84%21)
简便计算(519/123+657/324+573/947)×(657/324+573/947+246/173)—(519/123+657/324+573/947+246/173)×(657/324+573/947)赶紧的!
简便计算
(519/123+657/324+573/947)×(657/324+573/947+246/173)—(519/123+657/324+573/947+246/173)×(657/324+573/947)
赶紧的!
简便计算(519/123+657/324+573/947)×(657/324+573/947+246/173)—(519/123+657/324+573/947+246/173)×(657/324+573/947)赶紧的!
=(519/123+657/324+573/947)×(657/324+573/947)+(519/123+657/324+573/947)×246/173—(519/123+657/324+573/947)×(657/324+573/947)-246/173×(657/324+573/947)
=(519/123+657/324+573/947)×246/173-246/173×(657/324+573/947)
=246/173×(519/123+657/324+573/947-657/324-573/947)
=(246/173)×(519/123)
=6
==,我在做,10分钟,别删问题,