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六年级数学：先降价10%，后涨价10%，价格发生了怎样的变化呢？
先降价后涨价
六年级数学12/17
App01:42
App02:02
App02:20
App01:20
App02:46
App03:00
App00:52
App06:39
App02:08
App02:19
App01:09
App01:41
App01:40
App03:26
App01:51
App01:07
App03:33打开App观看
先降价后涨价
App01:42App02:02App02:20App01:20App02:46App03:00App00:52App06:39App02:08App02:19App01:09App01:41App01:40App03:26App01:51App01:07App03:33
