4.12*10.1还有8.7*4.3+8.7*5.7还有2.17*2-0.42递等式简便
答案:1 悬赏:10 手机版
解决时间 2021-11-17 18:42
- 提问者网友：山高云阔
- 2021-11-17 14:11
4.12*10.1还有8.7*4.3+8.7*5.7还有2.17*2-0.42递等式简便
最佳答案
- 五星知识达人网友：煞尾
- 2021-11-17 14:26
4.12×10.1
=4.12×(10+0.1)
=4.12×10+4.12×0.1
=41.2+0.412
=41.612
8.7×4.3+8.7×5.7
=8.7×(4.3+5.7)
=8.7×10
=87
2.17×2-0.42
=4.34-0.42
=3.92
=4.12×(10+0.1)
=4.12×10+4.12×0.1
=41.2+0.412
=41.612
8.7×4.3+8.7×5.7
=8.7×(4.3+5.7)
=8.7×10
=87
2.17×2-0.42
=4.34-0.42
=3.92
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