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二年级数学，用减法来记乘法口诀，不会是异想天开吧，大家信吗
想用减法来探寻九的乘法口诀规律，学生记起来又准又快
二年级数学新授课与易错题18/32
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App02:23想用减法来探寻九的乘法口诀规律，学生记起来又准又快
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