Select an easy, difficult, or random problem to work out.

Instructions:

1. Click on "Easy", "Middle", "Difficult", or "Random" to start on the appropriate level of exponent problem.

2. Type in the correct exponents in the white exponent boxes.

3. Click the "Check" button.

4. If any of your answers are incorrect they will be marked in red.  Correct these boxes and click check again, or click the "Start Over Button" to begin with a new problem.