找规律 1,4,5,6,9,8,13,10 ( ),( ),21,14.
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![找规律 1,4,5,6,9,8,13,10 ( ),( ),21,14.](/uploads/image/z/217157-5-7.jpg?t=%E6%89%BE%E8%A7%84%E5%BE%8B+1%2C4%2C5%2C6%2C9%2C8%2C13%2C10+%28+%29%2C%28+%29%2C21%2C14.)
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找规律 1,4,5,6,9,8,13,10 ( ),( ),21,14.
找规律 1,4,5,6,9,8,13,10 ( ),( ),21,14.
找规律 1,4,5,6,9,8,13,10 ( ),( ),21,14.
12 、17
间隔一个数字有规律
1 5 9 13 后一个数字比前一个数字大4
4 6 8 10 两个两个递增