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01.乘法的初步认识.mp4 | 2024-07-01 17:57:55 | 523.94 MB | |
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02.表内乘法（一）（1）.mp4 | 2024-07-01 17:57:55 | 477.91 MB | |
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03.表内乘法（一）（2）.mp4 | 2024-07-01 17:57:55 | 183.33 MB | |
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04.表内除法（一）（1）.mp4 | 2024-07-01 17:57:55 | 189.24 MB | |
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05.表内除法（一）（2）.mp4 | 2024-07-01 17:57:55 | 150.76 MB | |
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06.统计表和条形统计图（一）.mp4 | 2024-07-01 17:57:55 | 168.26 MB | |
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07.表内乘法和除法（二）（1）.mp4 | 2024-07-01 17:57:55 | 173.54 MB | |
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08.表内乘法和除法（二）（2）.mp4 | 2024-07-01 17:57:55 | 174.05 MB | |
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09.乘加乘减.mp4 | 2024-07-01 17:57:55 | 131.27 MB | |
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10.有余数的除法.mp4 | 2024-07-01 17:57:55 | 509.3 MB | |
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11.有余数除法的解决问题.mp4 | 2024-07-01 17:57:55 | 146.74 MB | |
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12.角的初步认识.mp4 | 2024-07-01 17:57:55 | 138.42 MB | |
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13.长方体和正方体的认识.mp4 | 2024-07-01 17:57:55 | 146.65 MB | |
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14.长方形和正方形（1）.mp4 | 2024-07-01 17:57:55 | 190.61 MB | |
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15.长方形和正方形（2）.mp4 | 2024-07-01 17:57:55 | 189.76 MB | |
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16.1000以内数的认识.mp4 | 2024-07-01 17:57:55 | 177.42 MB | |
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17.时、分、秒的认识(1).mp4 | 2024-07-01 17:57:55 | 177.59 MB | |
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18.时、分、秒的认识(2).mp4 | 2024-07-01 17:57:55 | 190.38 MB | |
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19.整百、整千数加减法.mp4 | 2024-07-01 17:57:55 | 135.67 MB | |
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20.万以内的加法和减法（二）1.mp4 | 2024-07-01 17:57:55 | 168.05 MB | |
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21.万以内的加法和减法（二）2.mp4 | 2024-07-01 17:57:55 | 190.08 MB | |
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22.克与千克.mp4 | 2024-07-01 17:57:55 | 150.89 MB | |
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23.位置与方向.mp4 | 2024-07-01 17:57:55 | 225.3 MB | |
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24.平行四边形的初步认识.mp4 | 2024-07-01 17:57:55 | 177.98 MB | |
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25.三角形的特性和分类.mp4 | 2024-07-01 17:57:55 | 521.47 MB |