Matrices - Basic Operations

How many rows are in a 7 x 3 matrix?

• 7
• 3
• 21
• 10

Tags

CCSS.3.OA.A.3

What must be true in order to ADD two matrices?

• They must be square.

• They must be the same size matrices.

• The determinant can't equal 0.

• The column of the 1st must equal the row of the 2nd.

You can multiply a 2X3 matrix by which matrix?

• 2X2
• 2X12
• 3X12
• 2X3

Tags

CCSS.HSN.VM.C.8

Find the product of the two matrices.

• 1   2
  6   -8
• -3   -5
  -5   -11
• -2     8
  -6   -12
• 2  -3
  5   -2

Tags

CCSS.HSN.VM.C.8

If the matrices can be multiplied, what is the size of the product?

• The product is undefined.

• 3 x 1

• 1 x 2

• 3 x 2

What are the dimensions of this matrix?

• 2 x 3
• 3 x 2
• 6 x 1
• 1 x 6

Tags

CCSS.HSN.VM.C.6

CCSS.HSN.VM.C.8

Find B-A

• -4     0
  6     -1
• 1     0
  1     -4
• 4       0
  -6     1
• not possible because rows do not match columns

Tags

CCSS.HSN.VM.C.8

Perform the indicated operation

• 
• 
• 
• 
• not possible

Tags

CCSS.HSN.VM.C.8

Perform the following operation

• 
• 
• 
• 
• not possible

Tags

CCSS.HSN.VM.C.8

Multiply

• 25
  25
  5
• -25
  25
  -5
• -10
  -10
  -6
• 10
  10
  6

Tags

CCSS.HSA.APR.A.1