四年级下册数学同步练习-6单元3课时-乘法交换律-苏教版
http://t.cn/Ri466E4苏教版小学数学四年级下册《乘法交换律》同步练习及参考答案1.连线。46×13212×(125×8)120×24(25×4)×1699×12824×120(25×16)×4132×46125×8×12128×9948×50×448×(50×4)2.学校图书室买回12包书,每包4本.每本25元,买这些书一共花了多少元钱?3.根据乘法的运算定律填一填。(1)19×23=23×__(2)35×9×2=__×__×9(3)25×75×4=__×4×754.开动脑筋,用简便方法计算.25×37×4125×7×825×43×8教育1
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