5.79×2.6+0.579×75-579×0.001的简便计算!
人气:142 ℃ 时间:2020-06-16 20:47:28
解答
5.79×2.6+0.579×75-579×0.001
=5.79×2.6+5.79×7.5-5.79×0.1
=5.79×(2.6+7.5-0.1)
=5.79×10
=57.9
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