WorksheetsAdding and Subtracting Matrices
Total questions: 10
Worksheet time: 10mins
Name
Class
Date
1.
Matrix operations:
What must be true in order to ADD two matrices?
a)
They must be square.
b)
The dimensions must be equal.
c)
The determinant can't equal 0.
d)
The column of the 1st must equal the row of the 2nd.
2.
A+B=?
a)
b)
c)
d)
e)
You can't add them because they don't have the same dimensions.
3.
a)
A
b)
B
c)
C
d)
D
4.
a)
A
b)
B
c)
C
d)
D
5.
In Matrix R (pictured) what element is in the second row, third column?
a)
8
b)
9.01
c)
6
d)
1
6.
Add.
a)
-2 4 -9
-1 -6 -17
b)
-8 12 -9
1 6 17
c)
-8 4 -9
15 6 7
d)
-2 -4 -9
15 6 7
7.
Solve for matrix X.
a)
-9
5
3
b)
9
13
-9
c)
15
-5
3
d)
10
4
6
8.
Solve for matrix Y.
a)
-4 9
-11 9
b)
4 -8
11 8
c)
4 -9
11 9
d)
-4 9
11 -9
9.
a)
A
b)
B
c)
C
d)
D
10.
a)
A
b)
B
c)
C
d)
D
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