Workbooks or Worksheets to go along with Math Lessons

Hi, I love Khan Academy.  I love the lessons in Math and the immediate feedback for the questions.  However, lately my daughter has complained about being on a screen so much (which I understand).  She is begging me for some physical material.  I am wondering if after she watched a lesson, there was a worksheet or workbook that corresponds that we could print out.  Not wanting to do that all the time, but do want to listen to her needs.  Other suggestions welcome!!