This number of the day work page accompanies my math wall. Each of the boxes labeled 1-7 correspond to a pocket chart asking students to manipulate the number of the day in some way (round to the nearest 10, 100, 1000, write the number in expanded form, etc.). I place the page in a sheet protector and the kids work on this with a whiteboard marker.
I included three different styles along with some picture examples of the pocket chart this goes along with in my classroom. There is a new page that is better suited for younger students as well!