Powers of 10 Roundtable Activity EDITABLE
Zip file includes PDF and Word (.docx) editable format.
Powers of 10 Roundtable activity with directions. Can also be converted into a traditional worksheet by changing the directions. Questions ask for students to work 'backward' and 'forward'. would suggest using this after a few days of your powers of ten unit/lesson.
I would suggest having each student use a different colored pencil to encourage accountability.