Question 1138334
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For each sequence, choose any number you want and make it the next number.  Any next number you choose will make a valid sequence; and any next number you choose will be as good an answer as any purported "right" answer.<br>
Without any information about what kinds of sequences these are, finding "the" answers is merely a guessing game; there is no mathematical reasoning involved.<br>
Whenever you see a problem like this, spend only a very short time (if any!) looking for a pattern in the given numbers ---realizing even then that any pattern you see might not be the "right" one.