简便计算 (1)25×17+13×25-250 (2)2009×2008-2008×2007简便计算(1)25×17+13×25-250(2)2009×2008-2008×2007+2007×2006-2006×2005
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![简便计算 (1)25×17+13×25-250 (2)2009×2008-2008×2007简便计算(1)25×17+13×25-250(2)2009×2008-2008×2007+2007×2006-2006×2005](/uploads/image/z/643636-28-6.jpg?t=%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97+%EF%BC%881%EF%BC%8925%C3%9717%2B13%C3%9725-250+%EF%BC%882%EF%BC%892009%C3%972008-2008%C3%972007%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%EF%BC%881%EF%BC%8925%C3%9717%2B13%C3%9725-250%EF%BC%882%EF%BC%892009%C3%972008-2008%C3%972007%2B2007%C3%972006-2006%C3%972005)
简便计算 (1)25×17+13×25-250 (2)2009×2008-2008×2007简便计算(1)25×17+13×25-250(2)2009×2008-2008×2007+2007×2006-2006×2005
简便计算 (1)25×17+13×25-250 (2)2009×2008-2008×2007
简便计算
(1)25×17+13×25-250
(2)2009×2008-2008×2007+2007×2006-2006×2005
简便计算 (1)25×17+13×25-250 (2)2009×2008-2008×2007简便计算(1)25×17+13×25-250(2)2009×2008-2008×2007+2007×2006-2006×2005