5th math

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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.


  • 5th math -

    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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