鸡场有鸡3200只:第一周卖出
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①第二周比第一周少卖多少只?______
②周一共卖出多少只?______
③还剩多少只?______.(1)3200×
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=1280-1200,
=80(只),
答:第二周比第一周少卖80只;
(2)3200×
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答:周一共卖出1280只;
(3)3200-3200×
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=3200-1280-1200,
=1920-1200,
=720(只),
答:还剩720只.
故答案依次为:3200×
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