Addition & Subtraction Vocabulary

17 + 14 = 14 + 17

• Associative Property

• Commutative Property

• Identity Property

• Distributive Property

93 + 0 = 93

• Associative Property

• Commutative Property

• Identity Property of Addition

• Distributive Property

7 + (9 + 2) = (7 + 9) + 2

• Associative Property

• Commutative Property

• Identity Property of Addition

• Distributive Property

The order of the addends can be switched around and you will still get the same sum.

• Associative Property of Addition

• Commutative Property of Addition

• Identity Property of Addition

• Zero Property of Addition

Any addend plus zero equals the addend.

• Associative Property of Addition

• Commutative Property of Addition

• Identity Property of Addition

• Distributive Property

The way that you group the addends does not change the sum.

• Associative Property of Addition

• Commutative Property of Addition

• Identity Property of Addition

• Distributive Property

You do not need paper and pencil to do what?

• Place Value

• Mental Math

• Multiplication

• Inverse Operations

Addition and subtraction are...

• ...the same operation of math.

• ...alike in many ways.

• ...the opposite of multiplication.

• ....inverse operations.

Numbers that are easy to compute mentally are...

• ...factors.

• ...multiples.

• ...compatible numbers.

• ...place value.

What is the value given to the place a digit has in a number?

• Place Value

• Rounding

• Estimate

• Compatible Number