打开App
360P
二年级数学上册解决两步计算的问题，期末必考题，有点偏难。
必须知道先求什么，再求什么。第一小题要先求前两次跳的总数，第2小题比较简单，第3小题孩子们容易做错，必须要先把白鸭的只数算出来，才能算花鸭和白鸭一共有多少只？
二年级数学上册101/269
App01:59
App05:13
App03:22
App05:29
App01:35
App03:13
App01:54
App02:23
App02:27
App05:45
App01:31
App02:29
App03:33
App02:39
App03:54
App05:18
App02:07
App02:03
App02:56
App02:49
App02:32
App04:02
App01:02
App02:39
App03:35
App02:36
App03:11
App04:42
App08:03
App05:28
App05:53
