用解决问题的策略算99999×7+1111×37
答案:1 悬赏:0 手机版
解决时间 2021-03-09 01:31
- 提问者网友：斑駁影
- 2021-03-08 03:20
用解决问题的策略算99999×7+1111×37
最佳答案
- 五星知识达人网友：玩世
- 2021-03-08 04:11
9的个数与1的个数不同,题目有误
按现有题目计算
99999X7+1111X37
=90000X7+9999X7+1111X37
=90000X7+1111X9X7+1111X37
=630000+1111X(63+37)
=630000+111100
=741100
按9999X7+1111X37
=1111X9X7+1111X37
=1111X63+1111X37
=1111X(63+37)
=1111X100
=111100
按现有题目计算
99999X7+1111X37
=90000X7+9999X7+1111X37
=90000X7+1111X9X7+1111X37
=630000+1111X(63+37)
=630000+111100
=741100
按9999X7+1111X37
=1111X9X7+1111X37
=1111X63+1111X37
=1111X(63+37)
=1111X100
=111100
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