如题
9999*7778+3333+6666
怎么写
急
9999*7778+3333+6666
=9999*7778+(3333+6666)
=9999*7778+9999
=9999*7778+9999*1
=9999*(7778+1)
=9999*7779
=(10000-1)*7779
=10000*7779-1*7779
=77790000-7779
=77782221
OK?
=9999*7778+(3333+6666)
=9999*7778+9999
=9999*7778+9999*1
=9999*(7778+1)
=9999*7779
=(10000-1)*7779
=10000*7779-1*7779
=77790000-7779
=77782221
OK?
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第1个回答 2010-03-29
(9999+1)*7778+3333+6666-7778=? 答案自己算 应该对
第2个回答 2010-03-29
(9999+1)*7778+3333+6666-7778=? 自己算OK?