This probably why the math so bad for many kids, even though it

来源: 美利坚老农 于 2016-12-29 17:04:28 [] [旧帖] [给我悄悄话] 阅读数 : (0 bytes)
回答: Anyone who has some commen sense can teach math 由 noworry 于 2016-12-29 16:52:07

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• Doesn't matter -美利坚老农- ♂ 给 美利坚老农 发送悄悄话 (0 bytes) () 12/29/2016 postreply 17:05:22

• The truth is for kids -noworry- ♂ 给 noworry 发送悄悄话 noworry 的博客首页 (844 bytes) () 12/29/2016 postreply 17:19:59

• 无忧????。 -美利坚老农- ♂ 给 美利坚老农 发送悄悄话 (0 bytes) () 12/29/2016 postreply 18:27:48

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