Study of mathematics online.
Study math with us and make sure that "Mathematics is easy!"

# Exercises. Addition and subtraction of matrices

Rules. Addition and subtraction of matrices.

You can add and subtract matrices of same size, as result you get a matrix of the same size.

Addition of matrices (sum of matrices) A + B is the operation of finding the matrix C, all of whose elements are equal to the sum of pairwise all relevant elements of the matrices A and B, that is, each element of the matrix C is

сi,j = ai,j + bi,j

Subtraction of matrices (difference of matrices) A - B is the operation of finding the matrix C, all of whose elements are pairwise differences of all relevant elements of the matrices A and B, that is, each element of the matrix C is

сi,j = ai,j - bi,j

Exercises. Addition of two matrices (sum of matrices) and the subtraction of two matrices (difference of matrices).

Given two matrices A and B:

 A = -9 -3 -11 -10 20 -7 -15 20 4

 B = 9 -11 -18 16 -20 6 10 -10 -10

Find the value of the matrix: C = A
+
B

Select the size of the matrix С:
Number of rows:
Number of columns:

Write the answer and press the button "Submit".

 C = ... 