WorksheetsMatrix Part 1
Total questions: 24
Worksheet time: 24mins
Name
Class
Date
1.
What is a Matrix?
a)
An equation of over 5 numbers or symbols
b)
A set of numbers in rows and columns
c)
A method of finding the nth value of a series
d)
A complicated number system
2.
What is the name of each entry of a matrix?
a)
Row
b)
Element
c)
Dimension
d)
Rectangle
3.
How many rows are in a 7 x 3 matrix?
a)
7
b)
3
c)
21
d)
10
4.
How many columns are in a 5 x 4 matrix?
a)
5
b)
4
c)
20
d)
9
5.
In Matrix R (pictured) what is the value of element R3,2
a)
8
b)
9.01
c)
6
d)
1
6.
What are the dimensions of this matrix?
a)
2 x 3
b)
3 x 2
c)
6 x 1
d)
1 x 6
7.
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.
8.
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
9.
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
10.
You can multiply a 2X3 matrix by which matrix?
a)
2X2
b)
2X12
c)
3X12
d)
2X3
11.
What do w, x, y and z equal in this matrix subtraction?
a)
w = 13, x = 4, y = 7, z = 23
b)
w = 13, x = -4, y = 11, z = 23
c)
w = 13, x = 4, y = 11, z = 23
d)
w = 13, x = 4, y = 11, z = 17
12.
Name the dimensions:
a)
6x2
b)
2x6
c)
12
d)
36
13.
Name the dimensions
a)
3x1
b)
1x3
c)
3
d)
1
14.
Can the operation be performed?
a)
Yes
b)
No
c)
potato
15.
What is the value of element a34?
a)
2
b)
-3
c)
6
d)
1
16.
What is the value of element a31?
a)
2
b)
4
c)
5
d)
6
17.
Subtract
a)
-5
-8
3
10
-8
3
10
b)
-9
8
3
2
8
3
2
c)
5
-8
3
10
-8
3
10
d)
-5
8
3
2
8
3
2
18.
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
19.
Multiply
a)
20 15 -10
30 -5 0
30 -5 0
b)
-20 15 -10
30 -5 0
30 -5 0
c)
1 8 3
11 4 5
11 4 5
d)
20 -15 10
-30 5 0
-30 5 0
20.
If A is a square matrix of m by n then
a)
m=n
b)
m>n
c)
m<n
d)
none
21.
What is the order(dimension) of this matrix?
a)
6 x 4
b)
3 x 2
c)
2 x 3
d)
Rectangular
22.
a)
-1 -8
-1 0
-1 0
b)
1 -8
-1 0
-1 0
c)
1 -8
-7 0
-7 0
d)
1 8
-1 0
-1 0
23.
a)
2 -1 6
-6 -2 9
-6 -2 9
b)
2 -1 6
-6 2 9
-6 2 9
c)
2 -1 6
4 -2 9
4 -2 9
d)
2 -9 6
-6 -2 9
-6 -2 9
24.
N+M
a)
b)
c)
100 %
