高思动画 四年级

俞老师

高思动画 四年级

俞老师

4101差倍差不变
https://www.bilibili.com/video/BV1Ff421q79A/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325

4101差倍和不变
https://www.bilibili.com/video/BV1Ff421q79A/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4102多个对象差倍
https://www.bilibili.com/video/BV19W421X7Tp/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4102多个对象差倍2
https://www.bilibili.com/video/BV1AS411w7Pb/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4103假设推理
https://www.bilibili.com/video/BV17w4m1Y7SM/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4103列表推理
https://www.bilibili.com/video/BV1XS421R7i7/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325




4103矛盾推理
https://www.bilibili.com/video/BV1L6421f7TT/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325




4104大数的读写
https://www.bilibili.com/video/BV1tT421k7bz/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4104四舍五入
https://www.bilibili.com/video/BV1ew4m1Y7ky/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4105三位数乘以两位数
https://www.bilibili.com/video/BV1Y1421b7Mc/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4106平行四边形梯形
https://www.bilibili.com/video/BV1Pz421B7Hs/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4107商不变
https://www.bilibili.com/video/BV1wE421P7CF/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4108多重周期
https://www.bilibili.com/video/BV18m421G7eM/?vd_source=d8df96881a3056060f96a6e244a3a325



4108公共周期
https://www.bilibili.com/video/BV1jZ421T7ok/?spm_id_from=333.999.0.0



4109擦线法最短路线
https://www.bilibili.com/video/BV1SH4y1w7cA/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4110两堆棋子拿取
https://www.bilibili.com/video/BV1XS42197nE/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4110一堆棋子拿取策略
https://www.bilibili.com/video/BV1Ry411q7j8/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4201树形图传球问题
https://www.bilibili.com/video/BV12T421k7Mh/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4201树形图计数
https://www.bilibili.com/video/BV11H4y1F74L/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4201树形图数字问题
https://www.bilibili.com/video/BV1MS411w7KS/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4202年龄差差倍
https://www.bilibili.com/video/BV1pS421R7Jo/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4202年龄差差倍2
https://www.bilibili.com/video/BV1aS421R7GS/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325


4202年龄和相关
https://www.bilibili.com/video/BV1bz421q7cg/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4203过去现在将来
https://www.bilibili.com/video/BV1Hx4y1x7rh/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4204和同近积大
https://www.bilibili.com/video/BV1VS411w7cT/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4204算式最值乘法
https://www.bilibili.com/video/BV1pZ421T7eU/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4205认识速度
https://www.bilibili.com/video/BV1S1421b7Pk/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4205行程基本公式
https://www.bilibili.com/video/BV1aw4m1Y78C/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325




4205行程有变
https://www.bilibili.com/video/BV1UZ421K7tS/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4206相遇问题1
https://www.bilibili.com/video/BV1Xx4y1t7Lq/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4206相遇问题2
https://www.bilibili.com/video/BV11H4y1F7UZ/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4206相遇问题3
https://www.bilibili.com/video/BV1a1421b7CQ/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4207追击问题
https://www.bilibili.com/video/BV1cf421q7m5/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4207追击问题2
https://www.bilibili.com/video/BV14z421q75Z/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4207追击问题3
https://www.bilibili.com/video/BV1BM4m127G4/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4208定义新运算
https://www.bilibili.com/video/BV1uW421d7j5/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325


4208平方差公式
https://www.bilibili.com/video/BV1SM4m117Qk/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4209除法竖式谜
https://www.bilibili.com/video/BV1ST421r7EY/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4301比较法解幻方
https://www.bilibili.com/video/BV1WJ4m1M7Fv/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4301幻方幻和
https://www.bilibili.com/video/BV19S42197LW/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4302加法字母迷
https://www.bilibili.com/video/BV1D4421U7po/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4302减法字母迷
https://www.bilibili.com/video/BV1JH4y1w7Gm/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325




4303重复字母末位分析
https://www.bilibili.com/video/BV1N4421U7K7/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4303字母末位分析
https://www.bilibili.com/video/BV1dE421A7aS/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4304假设法鸡兔同笼
https://www.bilibili.com/video/BV1oH4y1w7Gh/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4305分组法2
https://www.bilibili.com/video/BV1Mf421q7px/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4305分组法鸡兔同笼
https://www.bilibili.com/video/BV1Py411B7sS/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325



4401多个对象还原问题
https://www.bilibili.com/video/BV1s4421U7h4/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325




4401基本还原问题
https://www.bilibili.com/video/BV1HS411w7SQ/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325




4402平均，基准数法
https://www.bilibili.com/video/BV1E6421f7Xd/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325


4402平均价格
https://www.bilibili.com/video/BV1rZ421K7Zi/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325




4402平均数与总数
https://www.bilibili.com/video/BV1Bz421z7Ct/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325




4403平均数移多补少
https://www.bilibili.com/video/BV1Wb421E7gT/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325




4404标数法
https://www.bilibili.com/video/BV1uw4m1Y75X/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325




4404分类和分布
https://www.bilibili.com/video/BV1rb421n7Xo/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325




4405网格中数正方形
https://www.bilibili.com/video/BV1bS411w7JP/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325




4406连线法
https://www.bilibili.com/video/BV18f421q7pj/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325




4407多人多次相遇问题
https://www.bilibili.com/video/BV1Y4421D73d/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325




4408平行四边形面颊计算
https://www.bilibili.com/video/BV1UH4y1F7Ld/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325




4408长方形正方形面积计算
https://www.bilibili.com/video/BV1GS411w7to/?spm_id_from=333.999.0.0&vd_source=d8df96881a3056060f96a6e244a3a325