University of Waterloo (Canada)
University of Waterloo: Cemc: Math Circles: Exponents [Pdf]
This worksheet provides exercises in writing expressions in exponential form, multiplying and dividing powers, and working with zero and negative exponents. A series of challenging word problems are included.
Houghton Mifflin Harcourt
Holt, Rinehart and Winston: Homework Help Independent Practice: Simplifying Polynomials
Get independent practice working with simplifying polynomials. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.