5th math
posted by pat .
please show me an example of this one so.i can use it later to pratice the actual test next week here is the problem. complete each pattern.
17,,,62,,92
39,,,75,84
57,,,33,,17
15,,,33,,45 PLEASE FILLED OUT ALL THE BLANK FOR ME THANK YOU!!

In the last series, all the numbers are divisible by 3, and when you divide each number by three, the quotient is always an odd number. So maybe this?
15, 21, 27, 33, 39, 45
That is 
3 x 5
3 x 7
3 x 9
3 x 11
3 x 13
3 x 15
What patterns can you find for the others?
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