试卷第页共页第单元运算律常考易错检测卷单元测试小学数学四年级下册苏教版一选择题下面哪个算式是正确的eqId8bac4f47d8b325f3ff93f0dd25970a80eqId4b9e520d646aadf3c8480b2a36eafb4ceqId8052d3630b5398cc29b2cb37a2bd9989eqId6649d5ad2779f1fd4bdf5721fa634ed3计算eqId279694ab8282e1e5791d639815c29bc7正确的是原式eqIdbeb68a016856b08f16ff866adbd7bc1e原式eqIda9801a17ef7f6061a2919506c72b7963原式eqId4ba99c4bf47c6cccc1ede2985fd36efa下列算式中运用乘法交换律可使计算简便的是计算eqId3d29e7dc53af9b8a72a20a10dca5b353下列的算法是正确的eqId002a1a5b91a9a12ae16b35501f31c875eqId55a32b1911c26f0cfe7f9b469d8b4406eqId3bee6669