回复：儿子的数学也让俺胃疼，同时让俺也时髦一回

来源: calligraphy 于 2010-11-22 17:27:05 [] [旧帖] [给我悄悄话] 阅读数 : (146 bytes)

He knows to add 28 and 12 first. That means he is smart enough as a 2nd grader. Please do not anticipate or force him to think as an adult.

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