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6 May, 19:48

Next number in sequence 3 - 6 12 4 20?

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  1. 6 May, 20:07
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    -6 - 3 = - 9

    12 - (-6) = 18

    4 - 12 = - 8

    20 - 4 = 16

    The first difference is - 9. The third difference is - 8.

    Maybe the fifth difference is - 7.

    That makes the next term 13.

    3, - 6, 12, 4, 20, 13
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