Khan Academy
Khan Academy: Multiply and Divide Powers (Integer Exponents)
In this exercise, students practice using exponent rules to evaluate expressions. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly, or to review the concepts in a video.
Wyzant
Wyzant: Worksheet Index
WyzAnt is a resource of many algebra worksheets. An answer key is available, or you can click on the problem to see the work. Topics include: basic algebra, simplifying, multiplication, exponents, order of operations, negative exponents,...