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数学
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-2[-4+(2-2/3乘0.6)除以(-3)]等于多少?
人气:240 ℃ 时间:2019-10-23 13:07:05
解答
-2[-4+(2-2/3乘0.6)除以(-3)]
=-2[-4+(2-0.4)除以(-3)]
=-2[-4+1.6除以(-3)]
=-2[-4-8/15]
=-2×(-4又8/15)
=9又1/15
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