问题标题:
【4.2×0.34÷(1.4×0.34)】
问题描述:
4.2×0.34÷(1.4×0.34)
宁先圣回答:
4.2×0.34÷(1.4×0.34),
=4.2×0.34÷0.476,
=1.428÷0.476,
=3.
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4.2×0.34÷(1.4×0.34)