To add or subtract matrices, they must have the same number of rows and columns. Adding matrices is done by adding the elements in the same locations, and subtracting matrices is done by subtracting the elements in the same locations. The document provides examples of adding and subtracting matrices and includes two problems for the reader to solve with answers provided at the end.

2. To add two matrices, they must have the same number of rows and columns. Adding matrices is easy. Simply add the elements that are at the same location. 4 + 2 = 6 8 + 7 = 15 3 + 11 = 14 7 + -5 = 2

3. Problem #1: Add the matrices below: Check your answer at the end of the presentation.

4. To subtract two matrices, they must have the same number of rows and columns. Subtracting matrices is easy. Simply subtract the elements that are at the same location. 4 - 2 = 2 8 - 7 = 1 3 - 11 = -8 7 - -5 = 12

5. Problem #2: Subtract the matrices below: Check your answer at the end of the presentation.

6. Answer to Problem #1

7. Answer to Problem #2