In this video, Salman Khan of Khan Academy explains complex numbers. Part 2 of 2.
Khan Academy

This video includes sample exercises and stepbystep explanations of complex numbers and conjugates for the California Standards Test.
Khan Academy

This video includes sample exercises and stepbystep explanations of imaginary and complex numbers for the California Standards Test.
Khan Academy

A helpful scientific calculator that runs in your web browser window.
Holt Online Learning

In this video, Salman Khan of Khan Academy explains complex numbers. Part 1 of 2.
Khan Academy

The perfect study site for high school, college students and adult learners. Get help to do your homework, refresh your memory, prepare for a test, ....
SOS math

In this video, Salman Khan of Khan Academy explains i and imaginary numbers.
Khan Academy

How to solve equations with complex numbers
SOS Math

Good site for students to look at if they have just been introduced to complex/imaginary numbers. Works some example problems dealing with simplification of complex expressions.
Pauls Online Math Notes
