Grade 7 McGraw Hill Glencoe - Answer Keys Answer keys Chapter 5: Expressions; Lesson 3: Properties of Operations

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Grade 7 McGraw Hill Glencoe - Answer Keys

Chapter 5: Expressions; Lesson 3: Properties of Operations

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Question 11 (request help)
Simplify the expression \( (7 + 47 + 3)[5 · (2 · 3)]\). Use properties to justify each step.

Question 12 (request help)
Model with Mathematics Write about something you do every day that is commutative. Then write about another situation that is not commutative.

Question 13 (request help)
Find the Error Blake is simplifying 4 · (5 · m). Find his mistake and correct it.
Type below:

Question 14 (request help)
Identify Structure Does the Associative Property always, sometimes, or never hold for subtraction? Explain your reasoning using examples and counterexamples.

Question 15 (request help)
Which equation is an example of the Commutative Property?
- 4 · 1 = 4
- 16 + 0 = 16
- w + (3 + 2) = w + (2 + 3)
- d(9 · f ) = (d · 9)f