Which is the rule for this table?
| In | Out |
| –18 | –5 |
| –15 | –2 |
| –10 | 3 |
| –3 | 10 |
| 1 | 14 |
| 6 | 19 |
Add 13
Subtract 13
Add 14
Subtract 14
ref_doc_title.
Jumping to level 1 of 1
Excellent!
Now entering the Challenge Zone—are you ready?



