打开App
360P
趣味数学之牛吃草问题：一块草地可供10头牛和75只羊吃多少天呢
本节的内容主要讲述的是小学趣味数学（多为思维训练的题目），可以尝试让孩子做一做，很有挑战意义；本节涉及的是牛吃草问题：一块草地可供10头牛和75只羊一起吃多少天？
小学趣味数学：奥数精炼，让孩子打开思维，爱上数学学习332/373
App02:34
App04:04
App04:13
App01:23
App01:25
App03:59
App01:40
App01:35
App01:34
App02:02
App01:30
App01:29
App01:27
App03:02
App01:32
App01:40
App03:25
App02:56
App02:25
App03:33
App03:40
App03:13
App03:30
App03:52
App01:55
App02:18
App02:28
App03:49
App03:04
App03:06
App04:04打开App观看
