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计算:(1)(-1/15+2/3-5/6)×|-30|
(2)-22×(-8)-(-1/2)3×(-10+2)+4/9÷(-1/3)2
人气:329 ℃ 时间:2020-04-13 20:47:52
解答
1.原式=(3/5-5/6)×丨-30丨 =-7/30×30 =-72.原式=-4×(-8) - (-1/8)×(-8)+4/9×(-9) =32-1-4 =27
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