北大学霸的数学培优课（四年级），百度网盘分享

01.配套练习题1.mp4 [1.96M]

01.怎么证明世界上没有两片一样的树叶？.mp4 [11.84M]

02.配套练习题2.mp4 [1.34M]

02.如何用画图的方法解决
火车爬坡问题.mp4 [20.30M]

03竟然还有自恋的数学？.mp4 [10.76M]

03配套练习题.mp4 [2.63M]

04配套练习题.mp4 [2.64M]

04足不出户，怎么算出地球的周长.mp4 [8.71M]

05配套练习题.mp4 [4.80M]

05如何选出修桥的最短路径 – 副本.mp4 [17.79M]

06配套练习题.mp4 [2.11M]

06怎么用5升、3升的水桶，量出4升的水.mp4 [7.38M]

07配套练习题.mp4 [2.84M]

07骗人的条形统计图 – 副本.mp4 [19.35M]

08.mp4 [9.96M]

08配练习题.mp4 [2.99M]

09.mp4 [11.77M]

09配练习题.mp4 [3.39M]

10.mp4 [8.45M]

10配练习题.mp4 [2.67M]

11.mp4 [7.32M]

11配练习题.mp4 [1.71M]

12.mp4 [8.53M]

12配练习题.mp4 [1.80M]

13.mp4 [9.20M]

13配练习题.mp4 [2.42M]

14.mp4 [8.67M]

14配练习题.mp4 [2.12M]

15.mp4 [7.84M]

15配练习题.mp4 [2.06M]

16.mp4 [10.53M]

16配练习题.mp4 [1.52M]

17.mp4 [9.62M]

17配练习题.mp4 [3.00M]

18.mp4 [10.23M]

18配练习题.mp4 [1.60M]

19.mp4 [7.56M]

19配练习题.mp4 [2.87M]

20.mp4 [11.00M]

20配练习题.mp4 [2.83M]

彩蛋：称球问题加强版.mp4 [4.02M]

学好四年级数学20套方法.mp4 [10.31M]