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重难点:分数乘除应用专项训练(09)已知增减后的量,反求单位“1”

  • 2026-11-11 01:53:03
重难点:分数乘除应用专项训练(09)已知增减后的量,反求单位“1”

解题步骤（四步法）

1. 找分率句：找出题目中“谁是谁的几分之几”的句子。

2. 定单位1：分率句中“是”“占”“比”后面的量就是单位1。

3. 画线段图：用线段表示单位1，标出已知部分和对应分率。

4. 列式计算

专项训练09-例1

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专项训练09-举一反三1-1
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专项训练09-举一反三1-2
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专项训练09-例2
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专项训练09-举一反三2-1
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六年级数学上册应用题专项训练.pdf 
六年级数学上册应用题专项训练 - 答案.pdf 
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  1. CONNECT:[ UseTime:0.000739s ] mysql:host=172.18.0.4;port=3306;dbname=www_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001036s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000496s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000297s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000525s ]
  6. SELECT * FROM `set` [ RunTime:0.000336s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000594s ]
  8. SELECT * FROM `article` WHERE `id` = 543672 LIMIT 1 [ RunTime:0.000423s ]
  9. UPDATE `article` SET `lasttime` = 1794340341 WHERE `id` = 543672 [ RunTime:0.001663s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000332s ]
  11. SELECT * FROM `article` WHERE `id` < 543672 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000492s ]
  12. SELECT * FROM `article` WHERE `id` > 543672 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000439s ]
  13. SELECT * FROM `article` WHERE `id` < 543672 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000913s ]
  14. SELECT * FROM `article` WHERE `id` < 543672 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000828s ]
  15. SELECT * FROM `article` WHERE `id` < 543672 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000776s ]
0.099658s