Subtraction of Matrices...

The first rule of subtracting matrices is:

1. In order to subtract two matrices they must be OF THE SAME SIZE

2. When subtracting two matrices of the same size, then the matrix's answer is of the same size as the subtractants.

3. If you are subtracting two matrices of different sizes, then the answer is undefined.

4. The size of the matrix is denoted by the amount of rows and columns it has. If a matrix has three rows (across) and four columns (down) then the measurements are 3x4, the rows are always listed first, whereas the columns are always second.

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Definition of Matrix Subtraction:

If A = C and B = D and the matrices are both 1x2,and you are subtracting matrix [C, D] from matrix [A, B], then the answer is [A-C, B-D].

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For examples of subtracting matrices click HERE.

To practice subtracting matrices click HERE.

When finished doing the above problems, click HERE for the answers.

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Just click the NEXT button to continue your lesson in matrices by learning how to do scalar multiplication of matrices...


To skip straight to the multiplication of two matrices, click HERE.

To review the addition of matrices, click HERE

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Latest update to this document: 16 November 2001

Jessica Schneider: jeschnei@nmu.edu