Homework Explained - Math Practice 101

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Grade 7 HMH Go Math - Answer Keys
Chapter 3: Rational Numbers; Lesson 3: Subtracting Rational Numbers


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Guided Practice

Use a number line to find each difference.

Find each difference.

  • Question 11 (request help)

    A girl is snorkeling 1 meter below sea level and then dives down another 0.5 meter. How far below sea level is the girl?

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  • Question 12 (request help)

    The first play of a football game resulted in a loss of 12\(\frac{1}{2}\) yards. Then a penalty resulted in another loss of 5 yards. What is the total loss or gain?

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  • Question 13 (request help)

    A climber starts descending from 533 feet above sea level and keeps going until she reaches 10 feet below sea level. How many feet did she descend?

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  • Question 14 (request help)

    Eleni withdrew 45.00 dollars from her savings account. She then used her debit card to buy groceries for 30.15 dollars. What was the total amount Eleni took out of her account?

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  • Question 15 (request help)

    Mandy is trying to subtract 4 - 12, and she has asked you for help. How would you explain the process of solving the problem to Mandy, using a number line?

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