Khan Academy
Khan Academy: Exponents With Integer Bases
Practice raising positive and negative numbers (integers only) to whole number powers. Watch out for mischievous negative signs that aren't really part of the base! Students receive immediate feedback and have the opportunity to try...
Khan Academy
Khan Academy: Exponents With Negative Fractional Bases
Practice raising fractions to whole number powers. Fractions in these problems may be positive or negative. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Negative Exponents
Practice computing numbers with negative exponents. Exponents may be fractions. Students receive immediate feedback and have the opportunity to try questions repeatedly and to watch a video or get hints.
Texas A&M University
Wtamu Virtual Math Lab: Intermediate Algebra
This site is a tutorial for students in algebra 2 or for those who need a refresher. The site has explanations, definitions, examples, practice problems and practice tests are found covering topics such as linear equations, graphing,...
Khan Academy
Khan Academy: Signs of Expressions Challenge
Practice finding the signs of the answers to complex multiplication and division problems involving exponents. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.