用简便方法计算(3/5-1/2-7/12)*(60*3/7-60*1/7+60*5/7)
答案:3 悬赏:40 手机版
解决时间 2021-11-21 12:42
- 提问者网友：棒棒糖
- 2021-11-21 07:15
用简便方法计算(3/5-1/2-7/12)*(60*3/7-60*1/7+60*5/7)
最佳答案
- 五星知识达人网友：我住北渡口
- 2021-11-21 07:23
(3/5-1/2-7/12)*(60*3/7-60*1/7+60*5/7)
=(3/5-1/2-7/12)*60*(3/7-1/7+5/7)
=(3/5-1/2-7/12)*60*1
=36-30-35
=-29
=(3/5-1/2-7/12)*60*(3/7-1/7+5/7)
=(3/5-1/2-7/12)*60*1
=36-30-35
=-29
全部回答
- 1楼网友：执傲
- 2021-11-21 08:42
=(3/5-1/2-7/12)*60*(3-1+5)/7
=(3/5-1/2-7/12)*60*1
=36-30-35
=-29
=(3/5-1/2-7/12)*60*1
=36-30-35
=-29
- 2楼网友：笑迎怀羞
- 2021-11-21 08:29
(3/5-1/2-7/12)*(60*3/7-60*1/7+60*5/7)
=(3/5-1/2-7/12)*60*(3/7-1/7+5/7)
=(3/5-1/2-7/12)*60*1
=36-30-35
=-29
=(3/5-1/2-7/12)*60*(3/7-1/7+5/7)
=(3/5-1/2-7/12)*60*1
=36-30-35
=-29
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