Properties of Arithmetic and Inverse Operations

If you can switch the order of the numbers in a math operation and still get the same answer, then that operation has the: ___________________ Property

• Identity

• Commutative

• Associative

• Zero

Math operations that “undo” each another are called:

• Order of Operations

• Addition and Multiplication

• Inverse Operations

• Subtraction and Division

True/False: Addition and Multiplication are Inverse Operations.

• True

• False

True/False: Addition and Multiplication have the Commutative Property.

• True

• False

True/False: Multiplication and Division are Inverse Operations.

• True

• False

Inverse Operation means (check all that apply)

• to use some other operation

• to use the opposite operation

• to use the same operation

• to undo an operation

Complete the fact family:

if:  $4+5=9\ \ or\ \ 5+4=9$  then: 

•  $5-4=1\ \ or\ \ 9-4=5$  

•  $9-4=5\ \ or\ \ 9-5=4$  

•  $5\ +\ 4\ =\ 9\ \ or\ \ 5-4=1$  

Complete the fact family:

if:  $6\times3=18\ \ or\ \ 3\times6=18$  then: 

•  $6+3=9\ \ or\ \ 6-3=3$  

•  $18\div6=3\ \ or\ 18-6=12$  

•  $18\div3=6\ \ or\ \ 18\div6=3$  

True/False: Addition and Subtraction are Inverse Operations

• True

• False

Which pairs of operations are Inverse Operations? (check all that apply)

• Addition and Division

• Division and Multiplication

• Subtraction and Multiplication

• Addition and Subtraction

• Multiplication and Division