| 文件 | 时间 | 大小 | 下载 | |
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01.时、分、秒的认识(1).mp4 | 2024-07-01 17:57:55 | 490.52 MB | |
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02.时、分、秒的认识(2).mp4 | 2024-07-01 17:57:55 | 502.54 MB | |
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03.万以内的加法和减法（一）1.mp4 | 2024-07-01 17:57:55 | 195.84 MB | |
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04.万以内的加法和减法（一）2.mp4 | 2024-07-01 17:57:55 | 196.09 MB | |
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05.测量（1）.mp4 | 2024-07-01 17:57:55 | 184.12 MB | |
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06.测量（2）.mp4 | 2024-07-01 17:57:55 | 185.37 MB | |
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07.万以内的加法和减法（二）1.mp4 | 2024-07-01 17:57:55 | 168.05 MB | |
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08.万以内的加法和减法（二）2.mp4 | 2024-07-01 17:57:55 | 190.08 MB | |
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09.倍的认识.mp4 | 2024-07-01 17:57:55 | 202.3 MB | |
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10.多位数乘一位数（1).mp4 | 2024-07-01 17:57:55 | 200.36 MB | |
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11.多位数乘一位数（2）.mp4 | 2024-07-01 17:57:55 | 228.61 MB | |
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12.长方形和正方形（1）.mp4 | 2024-07-01 17:57:55 | 190.61 MB | |
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13.长方形和正方形（2）.mp4 | 2024-07-01 17:57:55 | 189.76 MB | |
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14.分数的初步认识（1）.mp4 | 2024-07-01 17:57:55 | 223.47 MB | |
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15.分数的初步认识（2）.mp4 | 2024-07-01 17:57:55 | 209.98 MB | |
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16.数学广角—集合.mp4 | 2024-07-01 17:57:55 | 252.99 MB | |
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17.整理和复习(1).mp4 | 2024-07-01 17:57:55 | 252.68 MB | |
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18.整理和复习(2).mp4 | 2024-07-01 17:57:55 | 221.65 MB | |
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19.位置与方向（一）.mp4 | 2024-07-01 17:57:55 | 225.3 MB | |
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20.除数是一位数的除法（1）.mp4 | 2024-07-01 17:57:55 | 154.04 MB | |
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21.除数是一位数的除法（2）.mp4 | 2024-07-01 17:57:55 | 254.59 MB | |
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22.复式统计表.mp4 | 2024-07-01 17:57:55 | 170.37 MB | |
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23.两位数乘两位数（1）.mp4 | 2024-07-01 17:57:55 | 132.3 MB | |
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24.两位数乘两位数（2）.mp4 | 2024-07-01 17:57:55 | 148.63 MB | |
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25.面积(1).mp4 | 2024-07-01 17:57:55 | 175.58 MB | |
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26.面积(2).mp4 | 2024-07-01 17:57:55 | 174.12 MB | |
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27.面积(3).mp4 | 2024-07-01 17:57:55 | 165.07 MB | |
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28.年、月、日(1).mp4 | 2024-07-01 17:57:55 | 169.59 MB | |
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29.年、月、日(2).mp4 | 2024-07-01 17:57:55 | 158.59 MB | |
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30.小数的初步认识(1).mp4 | 2024-07-01 17:57:55 | 172.34 MB | |
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31.小数的初步认识(2).mp4 | 2024-07-01 17:57:55 | 188.09 MB | |
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32.数学广角——搭配（二）.mp4 | 2024-07-01 17:57:55 | 180.93 MB | |
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33.总复习.mp4 | 2024-07-01 17:57:55 | 667.11 MB |