Introduction to Complex Numbers

High School Math based on the topics required for the Regents Exam conducted by NYSED to help students learn about complex numbers.

Introducing and Writing Complex Numbers

Complex Numbers
Introduction to the Imaginary unit (imaginary number) i which is the square root of -1, and complex numbers. Several examples are provided, showing how to simplify square roots of negative numbers, define pure imaginary numbers, state the standard form of a complex number, and identify the real and imaginary parts of a complex number in standard form

Complex numbers - Adding, Subtracting, and Graphing

Complex numbers - Multiplying and Dividing
Learn how to multiply and divide complex numbers in this step by step video.

Try out our new and fun Fraction Concoction Game.

Add and subtract fractions to make exciting fraction concoctions following a recipe. There are four levels of difficulty: Easy, medium, hard and insane. Practice the basics of fraction addition and subtraction or challenge yourself with the insane level.

We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page.