一课一练是每位老师在教学过程中必不可少的教学工具,对于一些教学经验还不够丰富的老师来说需要多看一些好的一课一练,这样会成长的更快。新东方在线小学网整理了《2019年北师大版四年级上册数学一课一练:<运算律>》,供老师们参考。
北师大版四年级上册数学一课一练:运算律
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