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5.4×0.33+2.7×1.35的简便计算
人气:382 ℃ 时间:2020-04-18 11:34:49
解答
5.4×0.33+2.7×1.35
=2.7×2×0.33+2.7×1.35
=2.7×(0.66+1.35)
=2.7×2.01
=2.7×(2+0.01)
=5.4+0.027
=5.427
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