六年级人教版数学练习册（湖北长江出版社出版的）第三页第4题怎么做？？？
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答：我发现了在同一行上的瓷砖的数对相比较，列数变，行数不变；同一列的瓷砖的数对相比较，行数变，列数不变。都是斜上方
太模糊了，我看不清，清晰点，谢谢
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绛旓細鍛ㄩ暱鏄640绫,鍒欓暱瀹戒箣鍜=640/2=320绫 鎵浠 闀 =320*9/(9+7)=320*9/16 =180绫 瀹 =320-180 =140绫 鎵浠 杩欎釜鐞冨満鐨勯潰绉 =180*140 =25200骞虫柟绫
