Free Printable Matrices 1

1.

What is a matrix?

a)

A matrix is a quadrilateral array of numbers, symbols, or expressions arranged in rows and columns.

b)

A matrix is a square or rectangular array of numbers, symbols, or expressions arranged in rows and columns.

c)

A matrix is a square or rectangular array of numbers, symbols, or expressions arranged in lines.

d)

A matrix is a square or rectangular array of numbers, symbols, or expressions arranged in columns.

2.

Matrices can be used to store (a) of data.

3.

Matrices can be written in the form:

a)

r x l

b)

l x r

c)

c x r

d)

r x c

4.

Identify the order of this worded matrix: TWO BY SEVEN MATRIX

a)

7 X 2

b)

2 X 77

c)

2 X 7

d)

77 X 2

5.

A row matrix only has (a)

6.

Add

a)

11 8
-4 2

b)

3 2
-6 -6

c)

-3 2
-4 -6

d)

10 8
-6 2

7.

Multiply

a)

20 15 -10
30 -5 0

b)

-20 15 -10
30 -5 0

c)

1 8 3
11 4 5

d)

20 -15 10
-30 5 0

8.

Subtract

a)

-5
-8
3
10

b)

-9
8
3
2

c)

5
-8
3
10

d)

-5
8
3
2

9.

What comes first in the order?

a)

Row

b)

Column

10.

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.

11.

You can multiply a 2X3 matrix by which matrix?

a)

2X2

b)

2X12

c)

3X12

d)

2X3

12.

What are the dimensions of this matrix?

a)

2 x 3

b)

3 x 2

c)

6 x 1

d)

1 x 6

13.

What are the dimensions of this matrix?

a)

3x1

b)

1x3

c)

3x3

d)

1x1

14.

How many columns are in a 5 x 4 matrix?

a)

5

b)

4

c)

20

d)

9

15.

What is a square matrix?

a)

A square matrix has an unequal number of rows and likewise columns.

b)

A square matrix has an equal number of rows and likewise columns.

c)

A square matrix has an equal number of rows and but not columns.

d)

A square matrix has an unequal number of rows and an unequal number of columns.

16.

If the matrices can be multiplied, what dimension is the product? If not, write undefined.

a)

( 2 x 2 )

b)

( 6 x 2)

c)

( 2 x 6 ) )

d)

( 3 x 2 )

17.

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 )

18.

If the matrices can be multiplied, what dimension is the product? If not, write undefined.

a)

( 3 x 1 )

b)

( 3 x 2 )

c)

( 3 x 3 )

d)

undefined

19.

If the matrices can be multiplied, what dimension is the product? If not, write undefined.

a)

undefined

b)

( 2 x 4 )

c)

( 2 x 2 )

d)

( 4 x 2 )

20.

a)

A

b)

B

c)

C

d)

D

e)

E

Matrices 1

Total questions: 20

Worksheet time: 9mins

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