This document provides examples and practice problems for addition, subtraction, multiplication, and division of imaginary numbers. It demonstrates how to combine like terms in addition and subtraction problems, and how to simplify expressions by multiplying or dividing both the numerical coefficient and the variable i. The document concludes with a chart for students to fill in the powers of i from i^0 to i^11.

1. Addition:
Example: 5i + 6i
Practice:
1. 4i + i 2. -8i + 2i
1

2. Subtraction:
Example: 5i - 6i
Practice:
1. 7i - 2i 2. 6i - 22i
2

3. Multiplication:
Example: 2(4i) =
Practice:
1. 5(3i) = 2. 21(5i) =
3

4. Division:
Example: 4i
2
Practice:
1. 25i 2. 12i
5 2
4

5. Directions:
Fill in the chart below using your knowledge of
imaginary numbers.
i0 = i1 = i2 = i3 =
i4 = i5 = i6 = i7 =
i8 = i9 = i10 = i11 =
5