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1、简便计算
(注:)
(1)4.83×0.59+0.41×1.59-0.324×5.9
59
(2)0.5×236×——
119
人气:419 ℃ 时间:2020-04-06 17:10:54
解答
(1)4.83×0.59+0.41×1.59-0.324×5.9=4.83*0.59+0.41*0.59+0.41-3.24*0.59=(4.83+0.41-3.24)*0.59+(1-0.59)=1+(4.83+0.41-3.24-1)*0.59=1+(5.24-3.24-1)*0.59=1.59(2)0.5*236*119=118*119=(120-2)(120-1)=120*120-3...
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