Imaginary numbers are numbers that are expressed as the square root of a negative number. They can be written as a real number that is multiplied by the imaginary unit i. Imaginary numbers tend to make their presence known when a quadratic equation has no roots in the set of real numbers. This series of worksheets will go to ask you to solve quadratics and write math statements in standard form. These worksheets will solve for variables in expressions containing imaginary numbers (either through simple reduction or balancing quadratic equations).

These lessons and activities will help you teach the concept of imaginary units. Students will practice solving expressions when the equation has no roots in real number sets.