answersLogoWhite

0


Best Answer

First you subtract six, then add eight, then add six so far. I'm not sure, but I think you subtract eight next, which would make the next number 13 again.

User Avatar

Wiki User

14y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is the pattern of 13 7 15 21?
Write your answer...
Submit
Still have questions?
magnify glass
imp