Lance wants to find the total length of three boards he use the special 3 1/2 + 2 + 4 1/2 how can Lance rewrite the expression using both the associative and commutative properties of addition

The associative property states that you can add or multiply regardless of how the numbers are grouped.

(3.5 + 2) + 4.5 = 3.5 + (2 + 4.5)
5.5 + 4.5 = 3.5 + 6.5
10 = 10

The commutative property states that you can add or multiply regardless of how the numbers arranged.

3.5 + 2 + 4.5 = 4.5 + 3.5 + 2 = 2 + 4.5 + 3.5
10 = 10 = 10

Where's the answers to the question

DUN DUN DUNNNNNNNNNNNNNNNNNNNNNNNNNNNN

I do not see the answer that involves to the question.

immature the answer is 5. . .

get beaten by a fourth grader =)

To rewrite the expression using the associative and commutative properties of addition, Lance can rearrange the terms and group them differently.

The associative property of addition states that changing the grouping of the terms does not affect the sum. The commutative property of addition states that changing the order of the terms does not affect the sum.

Let's rewrite the expression using these properties:

1. Associative Property:
Lance can group the terms differently by associating the 3 1/2 and 4 1/2 together, and adding them to 2 separately. This can be written as:
(3 1/2 + 4 1/2) + 2

2. Commutative Property:
Lance can also rearrange the terms using the commutative property of addition. This allows him to change the order of the terms without affecting the sum. For example, instead of adding 3 1/2 and 2 first, he can add 2 and 3 1/2 first. This can be written as:
2 + (3 1/2 + 4 1/2)

By rewriting the expression using these properties, Lance has flexibility in how he groups and orders the terms, but it will yield the same total length.