50*0.028*0.8的简算方法
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:2024/07/08 18:05:22
50*0.028*0.8的简算方法
![50*0.028*0.8的简算方法](/uploads/image/z/19206048-48-8.jpg?t=50%2A0.028%2A0.8%E7%9A%84%E7%AE%80%E7%AE%97%E6%96%B9%E6%B3%95)
50*0.028*0.8
=5×8×28÷1000
=40×28÷1000
=1120÷1000
=1·12
不懂的还可以追问!满意请及时采纳! O(∩_∩)O
再问: 2.5*3.6+2.5*7.3
再答: 2.5*3.6+2.5*7.3 =2·5×(3·6+7·3) =2·5×10·9 =2·5×(10+0·9) =2·5×10+2·5×0·9 =25+2·25 =27·25
=5×8×28÷1000
=40×28÷1000
=1120÷1000
=1·12
不懂的还可以追问!满意请及时采纳! O(∩_∩)O
再问: 2.5*3.6+2.5*7.3
再答: 2.5*3.6+2.5*7.3 =2·5×(3·6+7·3) =2·5×10·9 =2·5×(10+0·9) =2·5×10+2·5×0·9 =25+2·25 =27·25