Properties of Addition

Front

What is the Commutative Property of Addition?

Back

The Commutative Property of Addition states that changing the order of the numbers being added does not change the sum. For example, 2 + 3 = 3 + 2.

Front

What is the Associative Property of Addition?

Back

The Associative Property of Addition states that when adding three or more numbers, the way in which the numbers are grouped does not change the sum. For example, (1 + 2) + 3 = 1 + (2 + 3).

Front

What is the Identity Property of Addition?

Back

The Identity Property of Addition states that when you add zero to any number, the sum is that number. For example, 5 + 0 = 5.

Front

Fill in the blank: 4 + (3 + 2) = (4 + ___) + 2

Back

3

Front

Fill in the blank: 6 + ____ = 10 + 6

Back

10

Front

What does it mean to 'group' numbers in addition?

Back

Grouping numbers in addition means to use parentheses to show which numbers are added together first. For example, in (2 + 3) + 4, the 2 and 3 are grouped.

Front

Give an example of the Commutative Property of Addition.

Back

An example is: 7 + 5 = 5 + 7.

Front

Give an example of the Associative Property of Addition.

Back

An example is: (2 + 3) + 4 = 2 + (3 + 4).

Front

What is the sum of 8 + 0?

Back

The sum is 8, according to the Identity Property of Addition.

Front

What is the sum of 1 + 2 + 3?

Back

The sum is 6, and you can group the numbers in any way, like (1 + 2) + 3 or 1 + (2 + 3).