You can see in the examples below that not all number lines increase by one unit from mark to mark. Sketch the number lines on your paper and fill in the missing numbers.

• 1. 

     Hint (a):

     On this number line, each mark indicates an increase of $2$. Can you fill in the rest of the number line?

  2. 

     Answer (b):

     

  3. 

     Hint (c):

     This number line increases by $7$ with each mark.

     Answer (c):

     

     Some numbers have been added for you. Try filling in the rest on your own.

  4. 

     Hint (d):

     This is a zoomed-out perspective on the number line, since each mark represents an increase of $2000$.