你孩子比较厉害，有很高的数字才能。我自己做两位数乘法心算都费劲，特例除外。

来源: ca981 于 2015-11-14 14:22:49 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.