原式=(101+199)+(103+197)+(105+195)+(107+193)+···+(149+151)-101
101到199一共50个奇数,两两相加和为300,一共有25组,就是一共25个括号
=300X25-101
=7500-101
=7399
本文地址: http://www.goggeous.com/20241223/1/898814
文章来源:天狐定制
版权声明:除非特别标注,否则均为本站原创文章,转载时请以链接形式注明文章出处。
2025-01-08职业培训
2025-01-08职业培训
2025-01-08职业培训
2025-01-08职业培训
2025-01-08职业培训
2025-01-08职业培训
2025-01-08职业培训
2025-01-08职业培训
2025-01-08职业培训
2025-01-08职业培训
2024-12-23 13:27:52职业培训
2024-12-23 13:27:52职业培训
2024-12-23 13:27:51职业培训
2024-12-23 13:27:50职业培训
2024-12-23 13:27:43职业培训
2024-12-23 13:27:43职业培训
2024-12-23 13:27:42职业培训
2024-12-23 13:27:41职业培训
2024-12-23 13:27:40职业培训
2024-12-23 13:27:38职业培训
2024-12-17 15:36职业培训
2024-12-05 14:57职业培训
2024-12-23 01:24职业培训
2024-12-15 17:02职业培训
2024-12-17 07:13职业培训
2024-12-01 00:42职业培训
2024-12-01 22:40职业培训
2024-12-14 13:24职业培训
2024-12-30 00:43职业培训
2024-12-09 14:20职业培训
扫码二维码
获取最新动态