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1.1_认识东、南、西、北.mp4 | 2024-02-29 14:36:54 | 43.81 MB | |
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1.2_简单的平面示意图.mp4 | 2024-02-29 14:36:54 | 48.22 MB | |
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1.3_认识东南、东北、西南、西北.mp4 | 2024-02-29 14:36:54 | 58.1 MB | |
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1.4_简单的路线图.mp4 | 2024-02-29 14:36:54 | 55.45 MB | |
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2.1_口算除法（1）.mp4 | 2024-02-29 14:36:54 | 23.99 MB | |
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2.2_口算除法（2）.mp4 | 2024-02-29 14:36:54 | 23.94 MB | |
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2.3_两位数除以一位数.mp4 | 2024-02-29 14:36:54 | 38.15 MB | |
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2.4_三位数除以一位数（1）.mp4 | 2024-02-29 14:36:54 | 37.59 MB | |
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2.5_三位数除以一位数（2）.mp4 | 2024-02-29 14:36:54 | 37.73 MB | |
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2.6_商中间有0的除法.mp4 | 2024-02-29 14:36:54 | 33.32 MB | |
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2.7商末尾有0的除法.mp4 | 2024-02-29 14:36:54 | 31.35 MB | |
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2.8_解决问题（1）.mp4 | 2024-02-29 14:36:54 | 34.91 MB | |
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2.9_解决问题（2）.mp4 | 2024-02-29 14:36:54 | 47.1 MB | |
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3.1_复式统计表.mp4 | 2024-02-29 14:36:54 | 43.87 MB | |
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4.1_口算乘法（1）.mp4 | 2024-02-29 14:36:54 | 29.06 MB | |
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4.2_口算乘法（2）.mp4 | 2024-02-29 14:36:54 | 36.04 MB | |
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4.3_两位数乘两位数笔算乘法（不进位）.mp4 | 2024-02-29 14:36:54 | 54.62 MB | |
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4.4_两位数乘两位数笔算乘法（进位）.mp4 | 2024-02-29 14:36:54 | 36.29 MB | |
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4.5_解决问题（1）.mp4 | 2024-02-29 14:36:54 | 57.53 MB | |
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4.6_解决问题（2）.mp4 | 2024-02-29 14:36:54 | 42.04 MB | |
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5.1_认识面积.mp4 | 2024-02-29 14:36:54 | 23.97 MB | |
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5.2_认识面积单位.mp4 | 2024-02-29 14:36:54 | 30.29 MB | |
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5.3_长方形、正方形面积的计算（1）.mp4 | 2024-02-29 14:36:54 | 23.6 MB | |
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5.4_长方形、正方形面积的计算（2）.mp4 | 2024-02-29 14:36:54 | 22.44 MB | |
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5.5_面积单位间的进率.mp4 | 2024-02-29 14:36:54 | 25.81 MB | |
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5.6_解决问题.mp4 | 2024-02-29 14:36:54 | 41.19 MB | |
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6.1_认识年、月、日.mp4 | 2024-02-29 14:36:54 | 37.65 MB | |
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6.2_认识平年、闰年.mp4 | 2024-02-29 14:36:54 | 32.99 MB | |
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6.3_24时计时法.mp4 | 2024-02-29 14:36:54 | 41.5 MB | |
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6.4_解决问题.mp4 | 2024-02-29 14:36:54 | 26.14 MB | |
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7.1_认识小数.mp4 | 2024-02-29 14:36:54 | 42.62 MB | |
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7.2_小数的大小比较.mp4 | 2024-02-29 14:36:54 | 56.07 MB | |
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7.3_简单的小数加、减法.mp4 | 2024-02-29 14:36:54 | 49.47 MB | |
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7.4_解决问题.mp4 | 2024-02-29 14:36:54 | 33.75 MB | |
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8.1_搭配（1）.mp4 | 2024-02-29 14:36:54 | 42.6 MB | |
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8.2_搭配（2）.mp4 | 2024-02-29 14:36:54 | 40.88 MB | |
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8.3__搭配（3）.mp4 | 2024-02-29 14:36:54 | 34.65 MB |