4.2×0.34÷﹙1.4×0.34﹚简便方法

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4.2×0.34÷﹙1.4×0.34﹚简便方法4.2×0.34÷﹙1.4×0.34﹚简便方法4.2×0.34÷﹙1.4×0.34﹚简便方法4.2×0.34÷﹙1.4×0.34﹚=4.2÷1.4=3

4.2×0.34÷﹙1.4×0.34﹚简便方法
4.2×0.34÷﹙1.4×0.34﹚简便方法

4.2×0.34÷﹙1.4×0.34﹚简便方法
4.2×0.34÷﹙1.4×0.34﹚=4.2÷1.4=3