Homework Explained - Math Practice 101

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Grade 7 McGraw Hill Glencoe - Answer Keys
Chapter 3: Integers; Lesson 2: Add Integers


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  • Question 12 (request help)

    Reason Abstractly Lena deposits and withdraws money from a bank account. The table shows her transactions for March. Write an addition expression to describe her transactions. Then find the sum and explain its meaning.

     

  • Total transactions $:    

H.O.T. Problems Higher Order Thinking

 

  • Question 13 (request help)

    Model with Mathematics Describe two situations in which opposite quantities combine to make zero.

  • Type below:

Identify Structure Name the property illustrated by the following.

Model with Mathematics 

  • Question 18 (request help)

    Justify Conclusions Explain why you add to find the sum of two negative integers, but subtract to find the sum of a positive and a negative integer. Use a number line or counters in your explanation. 

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