巧算:39+399+3999+39999+399999+8
答案:3 悬赏:80 手机版
解决时间 2021-02-11 11:14
- 提问者网友:回忆在搜索
- 2021-02-11 06:10
巧算:39+399+3999+39999+399999+8
最佳答案
- 五星知识达人网友:愁杀梦里人
- 2021-02-11 06:55
巧算:
39+399+3999+39999+399999+8
=40-1+400-1+4000-1+40000-1+400000-1+8
=(40+400+4000+40000+400000)+(8-5)
=444440+3
=444443
39+399+3999+39999+399999+8
=40-1+400-1+4000-1+40000-1+400000-1+8
=(40+400+4000+40000+400000)+(8-5)
=444440+3
=444443
全部回答
- 1楼网友:像个废品
- 2021-02-11 08:55
=(40-1)+(400-1)+(4000-1)+(40000-1)+(400000-1)+(10-2)
=40+400+4000+40000+400000+10-7
=444440+3=444443
=40+400+4000+40000+400000+10-7
=444440+3=444443
- 2楼网友:往事隔山水
- 2021-02-11 08:14
39+399+3999+39999+399999+8
=40+400+4000+40000+400000+8-5
=444443
=40+400+4000+40000+400000+8-5
=444443
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