打开App
360P
整数加减混合运算，这个题怎么才能做对呢？这样算，才好理解！
这道题很多同学，不知道怎么换，其实用对方法很重要哦！
二年级上册难题易错题6/16
App02:30
App03:32
App03:29
App03:09
App05:56
App02:37
App02:42
App01:57
App01:56
App01:19
App04:50
App02:15
App01:48
App03:33
App02:32
App02:43这道题很多同学，不知道怎么换，其实用对方法很重要哦！
App02:30App03:32App03:29App03:09App05:56App02:37App02:42App01:57App01:56App01:19App04:50App02:15App01:48App03:33App02:32App02:43
