Moodle in English: What do these numbers on Order and Paging mean?

Moodle 2.5.1

In the quiz on the "Oder and paging" tab there is a column of numbers after the questions with 10,30, 50 etc. See this image.

What do those numbers mean? Why would I want to change them?

Thank you

--Karl

Moyenne des évaluations Useful (1)

par Tim Hunt, %A 09/26/2013D %B %Y, %H:%M

They can be used to re-order the questions and page breaks.

Moyenne des évaluations Useful (1)

par Beverly Faber, %A 03/14/2014D %B %Y, %H:%M

Did you ever find our what these numbers meant under reorder questions? Why not 1, 2, 3, etc

Moyenne des évaluations -

par Tim Hunt, %A 03/14/2014D %B %Y, %H:%M

If you have 1, 2, 3, then there is no space to put something between 1 and 2. Between 10 and 20 there are other numbers like 15.

Moyenne des évaluations Useful (2)

Quiz