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北京版小学数学四年级下册电子课本/教材(高清完整版)

  • 2026-03-27 07:12:46
北京版小学数学四年级下册电子课本/教材(高清完整版)

北京版小学数学四年级下册电子课本/教材

（更多电子课本请关注公众号发送“电子课本”免费获取）

目录

一、小数

二、小数加、减法

三、平行与相交

四、图形变换

设计和装饰《数学小报》

五、解决问题

“周末一日游”旅游计划

六、生活中的负数

七、统计表

八、数学百花园

九、总复习

（因篇幅有限，仅展示部分内容）
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北京版小学数学六年级下册电子课本/教材(高清完整版)

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  1. CONNECT:[ UseTime:0.000893s ] mysql:host=127.0.0.1;port=3306;dbname=c_sjds;charset=utf8mb4
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  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001153s ]
  6. SELECT * FROM `set` [ RunTime:0.000483s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001425s ]
  8. SELECT * FROM `article` WHERE `id` = 463594 LIMIT 1 [ RunTime:0.000934s ]
  9. UPDATE `article` SET `lasttime` = 1775584277 WHERE `id` = 463594 [ RunTime:0.016128s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000561s ]
  11. SELECT * FROM `article` WHERE `id` < 463594 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001088s ]
  12. SELECT * FROM `article` WHERE `id` > 463594 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000894s ]
  13. SELECT * FROM `article` WHERE `id` < 463594 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001982s ]
  14. SELECT * FROM `article` WHERE `id` < 463594 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.015036s ]
  15. SELECT * FROM `article` WHERE `id` < 463594 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.007860s ]
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