2011*0.3/2013*0.5+1.2/2013 简算,要快
来源:学生作业帮 编辑:搜狗做题网作业帮 分类:数学作业 时间:2024/07/14 12:14:06
2011*0.3/2013*0.5+1.2/2013 简算,要快
加油,加油,要快啊
加油,加油,要快啊
![2011*0.3/2013*0.5+1.2/2013 简算,要快](/uploads/image/z/15107778-18-8.jpg?t=2011%2A0.3%2F2013%2A0.5%2B1.2%2F2013+%E7%AE%80%E7%AE%97%2C%E8%A6%81%E5%BF%AB)
你的题目是2011*0.3/2013*0.5+1.2/2013 ,还2011*0.3/(2013*0.5)+1.2/2013呢?
如果是:
2011*0.3/2013*0.5+1.2/2013
=2011*0.3*0.5/2013+1.2/2013
=301.65/2013+1.2/2013
=302.85/2013
如果是:
2011*0.3/(2013*0.5)+1.2/2013
=2011*0.3*2/(2013*0.5*2)+1.2/2013
=1206.6/2013+1.2/2013
=1207.8/2013
=0.6
如果是:
2011*0.3/2013*0.5+1.2/2013
=2011*0.3*0.5/2013+1.2/2013
=301.65/2013+1.2/2013
=302.85/2013
如果是:
2011*0.3/(2013*0.5)+1.2/2013
=2011*0.3*2/(2013*0.5*2)+1.2/2013
=1206.6/2013+1.2/2013
=1207.8/2013
=0.6