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. Use the "Hint" button if you get stuck.

5. If any of your answers are incorrect they will be marked in red.  Correct these boxes and click "Check" again, or click the "New Problem Button" to begin with a new problem.  Note that the difficult category is very difficult.  No hints are given for this level