there is a solution in the walkthrough that i linked in the original post.Let me know in case the link is broken
I saw it and still don´t get it
add 7 I don't understand how I should add 7
Add 7 and disregard the first digit.
Example
5 + 7 is 12, so the answer is 2
Another example
8 + 6 is 14, so the answer is four and so on