Math Practice 101
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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Focus on Higher Order Thinking

  • Question 25 (request help)

    Look for a Pattern

    Show how you could use the Commutative Property to simplify the evaluation of the expression \(-\frac{7}{16} - \frac{1}{4} - \frac{5}{16}\).
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  • Question 26 (request help)

    Problem Solving

    The temperatures for five days in Kaktovik, Alaska, are given below.

    -19.6 °F, -22.5 °F, -20.9 °F, -19.5 °F, -22.4 °F

    Temperatures for the following week are expected to be twelve degrees lower every day. What are the highest and lowest temperatures expected for the corresponding 5 days next week?
  • Type below:
  • Question 27 (request help)

    Make a Conjecture

    Must the difference between two rational numbers be a rational number? Explain.
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  • Question 28 (request help)

    Look for a Pattern

    Evan said that the difference between two negative numbers must be negative. Was he right? Use examples to illustrate your answer.
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