1)

Halee set up a lemonade and cookie stand at the end of her street. She is selling lemonade for $0.25 per cup and cookies for $0.25 each. She sells 15 cookies and 35 cups of lemonade. Her total sales can be represented by the expression shown.

0.25(35) + 0.25(15)

Use the commutative property to write an equivalent expression.

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The solution is 0.25(15) + 0.25(35). The order in which the products are added does not matter. This is an example of using the commutative property.

Solution

This is the result of solving an equation to find a value(s) for the variable(s) which make the equation true.

Product

This is the result after multiplying a set of numbers or algebraic expressions.

Commutative Property

This property allows you to change the order of the terms when adding OR multiplying without changing the outcome.

1)

Halee set up a lemonade and cookie stand at the end of her street. She is selling lemonade for $0.25 per cup and cookies for $0.25 each. She sells 15 cookies and 35 cups of lemonade. Her total sales can be represented by the expression shown.

0.25(35) + 0.25(15)

Use the commutative property to write an equivalent expression.

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Take this time to do your best on this question.

A)

0.25(15 + 35)

B)

0.25(15) + 35

C)

0.25 + 35 + 15

D)

0.25(15) + 0.25(35)

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Number and Operations - Representations and Relationships

(1.g) Simplify Expressions

(1.g) Simplify Expressions

Apply the commutative, associative, distributive, equality, and identity properties, including order of operations, to simplify mathematical expressions, equations, and inequalities.

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Total Answered: 44,420

Percent Correct: 42%

DOK Level: 2

2)

Students are asked to write an equivalent expression for (a + b) + c using the associative property. Which student correctly wrote the expression?

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