20道简便计算过程及答案
- 你的回答被采纳后将获得:
- 系统奖励15(财富值+成长值)+难题奖励20(财富值+成长值)
引用瀛洲烟雨的回答:
4.8×10.1
=4.8×10+4.8×0.1
=48+0.48
=48.48
4.5×0.99
=4.5×1-4.5×0.01
=4.5-0.045
=4.455
3.4+3.4×99
=3.4×100
=340
187.7×11-187.7
=187.7×10
=1877
12×12/13
=12×13/13-12/13
=12-12/13
= 11又12/13
24×11/23
=11-1-1/23
=9又22/23
6/5-2/7+4/5-5/7
=(6/5+4/5)-(2/7+5/7)
=2-1
=1
4.8×10.1
=4.8×10+4.8×0.1
=48+0.48
=48.48
4.5×0.99
=4.5×1-4.5×0.01
=4.5-0.045
=4.455
3.4+3.4×99
=3.4×100
=340
187.7×11-187.7
=187.7×10
=1877
12×12/13
=12×13/13-12/13
=12-12/13
= 11又12/13
24×11/23
=11-1-1/23
=9又22/23
6/5-2/7+4/5-5/7
=(6/5+4/5)-(2/7+5/7)
=2-1
=1
展开全部
3.4+3.4×99
=3.4×1+3.4×99
=3.4×1+3.4×99
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
2017-12-27
展开全部
图片在哪里
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
2016-02-17 · 知道合伙人教育行家
关注
展开全部
4.8×10.1
=4.8×10+4.8×0.1
=48+0.48
=48.48
4.5×0.99
=4.5×1-4.5×0.01
=4.5-0.045
=4.455
3.4+3.4×99
=3.4×100
=340
187.7×11-187.7
=187.7×10
=1877
12×12/13
=12×13/13-12/13
=12-12/13
= 11又12/13
24×11/23
=11-1-1/23
=9又22/23
6/5-2/7+4/5-5/7
=(6/5+4/5)-(2/7+5/7)
=2-1
=1
=4.8×10+4.8×0.1
=48+0.48
=48.48
4.5×0.99
=4.5×1-4.5×0.01
=4.5-0.045
=4.455
3.4+3.4×99
=3.4×100
=340
187.7×11-187.7
=187.7×10
=1877
12×12/13
=12×13/13-12/13
=12-12/13
= 11又12/13
24×11/23
=11-1-1/23
=9又22/23
6/5-2/7+4/5-5/7
=(6/5+4/5)-(2/7+5/7)
=2-1
=1
追问
20个……
本回答被提问者和网友采纳
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询