300道异分母分数加减法计算题精品文档 1 1 1 = 1 = += = = = 2 = += = 1= = = -)= + +=+ + = ( ) = ( )= = ()= = = = 1 =1 = ()= = += -=+ = += ( )= ( ) ()= -(+)= + = += 单纯的课本内容,并不能满足学生的需要,通过补充,达到内容的完善 教育之通病是教用脑的人不用手,不教用手的人用脑,所以一无所能。教育革命的对策是手脑联盟,结果是手与脑的力量都可以大到不可思议。收集于网络,如有侵权请联系管理员删除