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Kurt used the rule add 4, subtract 1 to generate a pattern. The first term in his pattern is 5. Write a number that could be in Kurt pattern.

User Jesseca
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8.

Adding four and subtracting one is the same as adding three. So, to see if a number can be in this pattern, subtract five and check if the result is a multiple of three. If it is, it can be in the pattern.

Fun fact: to check if something is a multiple of three, add all the digits up and see if that is a multiple of three. If you don’t know, repeat the process of adding the digits.
User Shimi Shimson
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