9.2×o.25+0.75用简便方法
答案:1 悬赏:10 手机版
解决时间 2021-11-24 04:50
- 提问者网友：人生佛魔见
- 2021-11-23 19:07
9.2×o.25+0.75用简便方法
最佳答案
- 五星知识达人网友：平生事
- 2021-11-23 19:13
第一种方法：
9.2*0.25+0.75
=（4*2.3）*0.25+0.75
=4*0.25*2.3+0.75
=1*2.3+0.75
=2.3+0.75
=3.05
第二种方法：
9.2*0.25+0.75
=9.2*0.25+3*0.25
=（9.2+3）*0.25
=12.2*0.25
=（10+2+0.2）*0.25
=10*0.25+2*0.25+0.2*0.25
=2.5+0.5+0.05
=3+0.05
=3.05
第三种方法：
9.2*0.25+0.75
=9.2*0.25+3*0.25
=（9.2+3）*0.25
=12.2*0.25
=（4*3.05）*0.25
=4*0.25*3.05
=1*3.05
=3.05
9.2*0.25+0.75
=（4*2.3）*0.25+0.75
=4*0.25*2.3+0.75
=1*2.3+0.75
=2.3+0.75
=3.05
第二种方法：
9.2*0.25+0.75
=9.2*0.25+3*0.25
=（9.2+3）*0.25
=12.2*0.25
=（10+2+0.2）*0.25
=10*0.25+2*0.25+0.2*0.25
=2.5+0.5+0.05
=3+0.05
=3.05
第三种方法：
9.2*0.25+0.75
=9.2*0.25+3*0.25
=（9.2+3）*0.25
=12.2*0.25
=（4*3.05）*0.25
=4*0.25*3.05
=1*3.05
=3.05
我要举报
如以上回答内容为低俗、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！
点此我要举报以上问答信息
大家都在看
推荐资讯