Question 1040618: I have problems I need help with for my nephew. They are figure out the next number.
12,20,4,2,14,3,23,10,2,10
25,27,22,23,40,27,29,34,24,28
37,36,24,41,42,36,37,39,31,32
60,41,31,53,43,56,60,59,57,61
69,58,33,63,52,69,64,63,66,64
20,7,10,11,17,25,6,4,18,12
Answer by josgarithmetic(39618)   (Show Source):
You can put this solution on YOUR website! Identify and formalize the pattern of each sequence. Some of those sequences seem difficult.
Example, this one:
60,41,31,53,43,56,60,59,57,61
minus 19;
minus 10;
plus 22;
minus 10;
plus 13;
plus 4;
minus 1;
minus 2;
plus 3.
That appears to be no pattern, so no next number can be predicted.
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