So, I understand that the number line is a way to conceptualize relational distances between numbers, but in that example I’m struggling to see the relation between 57 where the line ends and 111, the answer. If you have insight, do you mind elaborating?

Edit: actually… Aren’t the numbers they wrote in on the line WRONG? Why did they go down by 20 to 107, then by 10 to 57 arbitrarily? If you do 10 instead, then increment by 1 to 111… You get the answer. Did the person solve it wrong and put the right answer to get people outraged?