WorksheetsMatrices
Total questions: 11
Worksheet time: 22mins
Name
Class
Date
1.
Add
a)
11 8
-4 2
-4 2
b)
3 2
-6 -6
-6 -6
c)
-3 2
-4 -6
-4 -6
d)
10 8
-6 2
-6 2
2.
Subtract
a)
3 -8
0 -1
0 -1
b)
3 -4
8 -13
8 -13
c)
-3 8
0 1
0 1
d)
3 -8
-8 1
-8 1
3.
Find A+B
a)
8 10
8 1
8 1
b)
12 25
7 1
7 1
c)
10 30
0 1
0 1
d)
can't add two together because the rows dont match columns
4.
What are the dimensions of this matrix?
a)
2 x 3
b)
3 x 2
c)
6 x 1
d)
1 x 6
5.
What comes first in the order?
a)
Row
b)
Column
6.
Can the operation be performed?
a)
Yes
b)
No
c)
Sometimes
d)
only Mrs. Jordan knows
7.
If the matrices can be multiplied, what dimension is the product? If not, write undefined.
a)
undefined
b)
( 3 x 1 )
c)
( 1 x 2 )
d)
( 3 x 2 )
8.
Perform the operation if possible.
a)
A
b)
B
c)
C
d)
D
9.
find: B*A
a)
47 30
9 5
9 5
b)
17 15
42 35
42 35
c)
10 25
7 1
7 1
d)
not possible because rows do not match columns
10.
Which matrix is an identity matrix
a)
A
b)
B
c)
C
d)
D
11.
Matrices can be multiplied only...
a)
if the row of the first matrix is equal to the column of the second matrix.
b)
if the column of the first matrix is equal to the column of the second matrix.
c)
if the column of the first matrix is equal to the row of the second matrix.
d)
if the row of the first matrix is equal to the row of the second matrix.
100 %
