4.2÷0.35+42÷2.5简便计算怎么做
答案:5 悬赏:40 手机版
解决时间 2021-11-29 14:25
- 提问者网友：伴风望海
- 2021-11-28 16:22
4.2÷0.35+42÷2.5简便计算怎么做
最佳答案
- 五星知识达人网友：梦中风几里
- 2021-11-28 16:54
4.2÷0.35+42÷2.5
=4.2÷35/100+42÷25/10
=42x1/10÷7/20+42÷5/2
=42x1/10x20/7+42x2/5
=42x2/7+8.4x2
=6x2+16.8
=28.8
谢谢，请采纳
=4.2÷35/100+42÷25/10
=42x1/10÷7/20+42÷5/2
=42x1/10x20/7+42x2/5
=42x2/7+8.4x2
=6x2+16.8
=28.8
谢谢，请采纳
全部回答
- 1楼网友：洒脱疯子
- 2021-11-28 19:25
4.2÷0.35+42÷2.5
=4.2÷0.35+4.2÷0.25
=4.2÷（0.35+0.25）
=4.2÷0.6
=7
=4.2÷0.35+4.2÷0.25
=4.2÷（0.35+0.25）
=4.2÷0.6
=7
- 2楼网友：鱼忧
- 2021-11-28 19:19
4.2÷0.35+42÷2.5
=420÷7÷5+420÷5÷5
=60/5+84/5
=144/5
=28.8
=420÷7÷5+420÷5÷5
=60/5+84/5
=144/5
=28.8
- 3楼网友：第幾種人
- 2021-11-28 19:01
42÷3.5+42÷2.5
42÷(3.5+2.5)
42÷6
42÷(3.5+2.5)
42÷6
- 4楼网友：行路难
- 2021-11-28 18:22
4.2÷0.35+42÷2.5
=420÷7÷5+420÷5÷5
=60/5+84/5
=144/5
=28.8
=420÷7÷5+420÷5÷5
=60/5+84/5
=144/5
=28.8
我要举报
如以上问答信息为低俗、色情、不良、暴力、侵权、涉及违法等信息，可以点下面链接进行举报！
大家都在看
推荐资讯