1.25×0.25乘三点九的简便算法是什么
答案:3 悬赏:30
解决时间 2021-01-07 21:58
- 提问者网友：我们很暧昧
- 2021-01-07 00:38
1.25×0.25乘三点九的简便算法是什么
最佳答案
- 二级知识专家网友：鸽屿
- 2021-01-07 01:04
1.25×0.25乘三点九的简便算法
1.25x0.25x3.9
=（1+0.25）x0.25x3.9
=(0.25+0.25x0.25)x3.9
=0.3125x3.9
=1.21875
1.25x0.25x3.9
=（1+0.25）x0.25x3.9
=(0.25+0.25x0.25)x3.9
=0.3125x3.9
=1.21875
全部回答
- 1楼网友：罪歌
- 2021-01-07 03:07
1.25×0.25乘三点九的简便算法是什么
=1.25×【0.25×（4-0.1）】
=1.25×[0.25×4-0.25×0.1】
=1.25×[1-0.025]
=1.25×0.975
=1.21875
=1.25×【0.25×（4-0.1）】
=1.25×[0.25×4-0.25×0.1】
=1.25×[1-0.025]
=1.25×0.975
=1.21875
- 2楼网友：玩世
- 2021-01-07 01:51
1.25×0.25乘三点九
=1.25×0.25×4-1.25×0.25×0.1
=1.25-0.03125
=1.21875
=1.25×0.25×4-1.25×0.25×0.1
=1.25-0.03125
=1.21875
我要举报
如以上问答内容为低俗、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！
大家都在看
推荐资讯