文件 | 时间 | 大小 | 下载 | |
---|---|---|---|---|
1.1_数据收集整理(1).mp4 | 2024-02-29 14:36:54 | 20.8 MB | ||
1.2_数据收集整理(2).mp4 | 2024-02-29 14:36:54 | 21.28 MB | ||
2.1_平均分(1).mp4 | 2024-02-29 14:36:54 | 18.18 MB | ||
2.2_平均分(2).mp4 | 2024-02-29 14:36:54 | 22.58 MB | ||
2.3_除法(1).mp4 | 2024-02-29 14:36:54 | 18.04 MB | ||
2.4_除法(2).mp4 | 2024-02-29 14:36:54 | 22.9 MB | ||
2.5_用2-6的乘法口诀求商.mp4 | 2024-02-29 14:36:54 | 21.88 MB | ||
2.6_解决问题.mp4 | 2024-02-29 14:36:54 | 20.68 MB | ||
3.1_轴对称图形的认识.mp4 | 2024-02-29 14:36:54 | 37.59 MB | ||
3.2_平移.mp4 | 2024-02-29 14:36:54 | 38.67 MB | ||
3.3_旋转.mp4 | 2024-02-29 14:36:54 | 29.46 MB | ||
3.4_剪纸.mp4 | 2024-02-29 14:36:54 | 39.28 MB | ||
4.1_用7、8的乘法口诀求商.mp4 | 2024-02-29 14:36:54 | 39.1 MB | ||
4.2_用9的乘法口诀求商.mp4 | 2024-02-29 14:36:54 | 47.37 MB | ||
4.3_解决问题.mp4 | 2024-02-29 14:36:54 | 29.48 MB | ||
5.1_加减或乘除同级运算.mp4 | 2024-02-29 14:36:54 | 37.45 MB | ||
5.2_加减乘除混合运算.mp4 | 2024-02-29 14:36:54 | 51.55 MB | ||
5.3_有括号的混合运算.mp4 | 2024-02-29 14:36:54 | 42.69 MB | ||
5.4_解决问题.mp4 | 2024-02-29 14:36:54 | 48.64 MB | ||
6.1_有余数的除法(1).mp4 | 2024-02-29 14:36:54 | 26.82 MB | ||
6.2_有余数的除法(2).mp4 | 2024-02-29 14:36:54 | 43.34 MB | ||
6.3_解决问题.mp4 | 2024-02-29 14:36:54 | 61.03 MB | ||
7.1_1000以内数的认识.mp4 | 2024-02-29 14:36:54 | 23.74 MB | ||
7.2_千以内数的读写和组成.mp4 | 2024-02-29 14:36:54 | 30.62 MB | ||
7.3_用算盘计数.mp4 | 2024-02-29 14:36:54 | 37.59 MB | ||
7.4_10000以内数的认识.mp4 | 2024-02-29 14:36:54 | 45.19 MB | ||
7.5_万内数的读法和写法.mp4 | 2024-02-29 14:36:54 | 39.95 MB | ||
7.6_万以内数的大小比较.mp4 | 2024-02-29 14:36:54 | 31.77 MB | ||
7.7_近似数.mp4 | 2024-02-29 14:36:54 | 19.51 MB | ||
7.8_整百、整千数加减法.mp4 | 2024-02-29 14:36:54 | 15.45 MB | ||
8.1_克和千克.mp4 | 2024-02-29 14:36:54 | 23.61 MB | ||
8.2_解决实际问题.mp4 | 2024-02-29 14:36:54 | 24.35 MB | ||
9.1_推理(1).mp4 | 2024-02-29 14:36:54 | 16.58 MB | ||
9.2_推理(2).mp4 | 2024-02-29 14:36:54 | 39.12 MB |