2+7.25/(31-29.55)能怎么简便计算就怎样计算
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/06/26 02:51:14
2+7.25/(31-29.55)能怎么简便计算就怎样计算
3.2+7.25/(31-29.55)能怎么简便计算就怎样计算列综合算式
3.2+7.25/(31-29.55)能怎么简便计算就怎样计算列综合算式
![2+7.25/(31-29.55)能怎么简便计算就怎样计算](/uploads/image/z/3436465-49-5.jpg?t=2%2B7.25%2F%EF%BC%8831-29.55%EF%BC%89%E8%83%BD%E6%80%8E%E4%B9%88%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%E5%B0%B1%E6%80%8E%E6%A0%B7%E8%AE%A1%E7%AE%97)
3.2+7.25/(31-29.55)
=3.2+7.25/[(30-29)+(1-0.55)]
=3.2+7.25/[1+0.45]
=3.2+7.25/1.45
=3.2+(7.25x500)/(1.45x500)
=3.2+(725x5)/725
=3.2+5
=8.2
=3.2+7.25/[(30-29)+(1-0.55)]
=3.2+7.25/[1+0.45]
=3.2+7.25/1.45
=3.2+(7.25x500)/(1.45x500)
=3.2+(725x5)/725
=3.2+5
=8.2