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  • Open Up Resources 6–8 Math
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Unit 5

7.5 Rational Number Arithmetic

Interpreting Negative Numbers

  • Lesson 1

    Interpreting Negative Numbers

Adding and Subtracting Rational Numbers

  • Lesson 2

    Changing Temperatures
  • Lesson 3

    Changing Elevation
  • Lesson 4

    Money and Debts
  • Lesson 5

    Representing Subtraction
  • Lesson 6

    Subtracting Rational Numbers
  • Lesson 7

    Adding and Subtracting to Solve Problems

Multiplying and Dividing Rational Numbers

  • Lesson 8

    Position, Speed, and Direction
  • Lesson 9

    Multiplying Rational Numbers
  • Lesson 10

    Multiply!
  • Lesson 11

    Dividing Rational Numbers
  • Lesson 12

    Negative Rates

Four Operations with Rational Numbers

  • Lesson 13

    Expressions with Rational Numbers
  • Lesson 14

    Solving Problems with Rational Numbers

Solving Equations When There Are Negative Numbers

  • Lesson 15

    Solving Equations with Rational Numbers
  • Lesson 16

    Representing Contexts with Equations

Let's Put It to Work

  • Lesson 17

    The Stock Market
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