# Worksheet: Adding and Subtracting Matrices

Q1:

Find .

• A
• B
• C
• D

Q2:

Find .

• A
• B
• C
• D

Q3:

Find .

• A
• B
• C
• D

Q4:

Evaluate

• A
• B
• C
• D
• E

Q5:

Find .

• A
• B
• C
• D

Q6:

Find .

• A
• B
• C
• D

Q7:

Find .

• A
• B
• C
• D

Q8:

Consider the matrix Suppose the sum of matrices and is Find the matrix .

• A
• B
• C
• D
• E

Q9:

Given that find the values of , , , , and .

• A , , , ,
• B , , , ,
• C , , , ,
• D , , , ,

Q10:

Given that find the values of , , , , and .

• A , , , ,
• B , , , ,
• C , , , ,
• D , , , ,
• E , , , ,

Q11:

Given that find the values of , , , , and .

• A , , , ,
• B , , , ,
• C , , , ,
• D , , , ,
• E , , , ,

Q12:

Given that find the values of , , , , and .

• A , , , ,
• B , , , ,
• C , , , ,
• D , , , ,

Q13:

Suppose the sum makes sense. We also know that has 2 rows and has 3 columns. What can we say about matrix ?

• A is a matrix.
• B is a matrix.
• C is a matrix.
• D is a matrix.
• E is a matrix.

Q14:

Let be a matrix whose entries are all zero. If is any matrix, which of following is equivalent to ?

• A
• B
• C
• D
• E

Q15:

Given that is the zero matrix of order , find the value of .

• A
• B
• C
• D

Q16:

Given that, for the following, is the zero matrix of order , find the value of .

• A
• B
• C
• D
• E