(1)如果2005+(-200.5)=X+(20.05),那么X等于_______(2)1+(-2)+3+(-4)+.+2007+(-2008)=_________(3)9+(-7)+10+(-9)+(-3)=( )(4)6箱苹果,以每箱15KG为标准,超过的记为正数,不足的记为负数,称重如下:1.5,-2.3,+1.5,-0.8,+3.1,-2.4.则6箱
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![(1)如果2005+(-200.5)=X+(20.05),那么X等于_______(2)1+(-2)+3+(-4)+.+2007+(-2008)=_________(3)9+(-7)+10+(-9)+(-3)=( )(4)6箱苹果,以每箱15KG为标准,超过的记为正数,不足的记为负数,称重如下:1.5,-2.3,+1.5,-0.8,+3.1,-2.4.则6箱](/uploads/image/z/998936-8-6.jpg?t=%281%29%E5%A6%82%E6%9E%9C2005%2B%28-200.5%29%3DX%2B%2820.05%29%2C%E9%82%A3%E4%B9%88X%E7%AD%89%E4%BA%8E_______%282%291%2B%28-2%29%2B3%2B%28-4%29%2B.%2B2007%2B%28-2008%29%3D_________%283%299%2B%28-7%29%2B10%2B%28-9%29%2B%28-3%29%3D%28+%29%284%296%E7%AE%B1%E8%8B%B9%E6%9E%9C%2C%E4%BB%A5%E6%AF%8F%E7%AE%B115KG%E4%B8%BA%E6%A0%87%E5%87%86%2C%E8%B6%85%E8%BF%87%E7%9A%84%E8%AE%B0%E4%B8%BA%E6%AD%A3%E6%95%B0%2C%E4%B8%8D%E8%B6%B3%E7%9A%84%E8%AE%B0%E4%B8%BA%E8%B4%9F%E6%95%B0%2C%E7%A7%B0%E9%87%8D%E5%A6%82%E4%B8%8B%3A1.5%2C-2.3%2C%2B1.5%2C-0.8%2C%2B3.1%2C-2.4.%E5%88%996%E7%AE%B1)
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