1949*2012/1949+1949*1949+1949*2012/1950+1950*1950+……+1949*2012/2011+2011*2011 要简便算法及答案!注:“*”是乘号. “/”分数线,它左边是分子,右边是分母. 答好了有悬赏!
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![1949*2012/1949+1949*1949+1949*2012/1950+1950*1950+……+1949*2012/2011+2011*2011 要简便算法及答案!注:“*”是乘号. “/”分数线,它左边是分子,右边是分母. 答好了有悬赏!](/uploads/image/z/176236-52-6.jpg?t=1949%2A2012%2F1949%2B1949%2A1949%2B1949%2A2012%2F1950%2B1950%2A1950%2B%E2%80%A6%E2%80%A6%2B1949%2A2012%2F2011%2B2011%2A2011+%E8%A6%81%E7%AE%80%E4%BE%BF%E7%AE%97%E6%B3%95%E5%8F%8A%E7%AD%94%E6%A1%88%21%E6%B3%A8%EF%BC%9A%E2%80%9C%2A%E2%80%9D%E6%98%AF%E4%B9%98%E5%8F%B7.+++++++%E2%80%9C%2F%E2%80%9D%E5%88%86%E6%95%B0%E7%BA%BF%2C%E5%AE%83%E5%B7%A6%E8%BE%B9%E6%98%AF%E5%88%86%E5%AD%90%2C%E5%8F%B3%E8%BE%B9%E6%98%AF%E5%88%86%E6%AF%8D.++++++%E7%AD%94%E5%A5%BD%E4%BA%86%E6%9C%89%E6%82%AC%E8%B5%8F%21)
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