Topic 8: Properties of Addition

Front

What is the Identity Property of Addition?

Back

The Identity Property of Addition states that when you add zero to any number, the result is that number. For example, 10 + 0 = 10.

Front

What is the Commutative Property of Addition?

Back

The Commutative Property of Addition states that changing the order of the numbers you are adding does not change the sum. For example, 3 + 5 = 5 + 3.

Front

What is the Associative Property of Addition?

Back

The Associative Property of Addition states that when you add three or more numbers, the way in which the numbers are grouped does not change the sum. For example, (2 + 3) + 4 = 2 + (3 + 4).

Front

Give an example of the Identity Property of Addition.

Back

An example is 7 + 0 = 7.

Front

Give an example of the Commutative Property of Addition.

Back

An example is 4 + 6 = 6 + 4.

Front

Give an example of the Associative Property of Addition.

Back

An example is (1 + 2) + 3 = 1 + (2 + 3).

Front

What does it mean to use parentheses in addition?

Back

Using parentheses in addition indicates which numbers to add first, as in the Associative Property.

Front

Is 10 + 5 = 5 + 10 an example of the Identity Property of Addition?

Back

No, it is an example of the Commutative Property of Addition.

Front

Is 13 + 7 = 7 + 18 an example of any property?

Back

No, this problem isn't any of the properties.

Front

What is the sum of 2 + 3 + 4?

Back

The sum is 9.