Simplify expressions with base i (the imaginary unit) raised to a positive exponent. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice rewriting fractions with positive and negative denominators. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice finding the signs of the answers to multiplication and division problems with positive and negative numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

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.

See if you can identify the positions of the 9 planets in our solar system. Take an online quiz and get feedback on your answers.