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Guides d'étude > Prealgebra

Summary: Subtracting Integers

Key Concepts

  • Subtraction of Integers
    535 - 3 5(3)-5-\left(-3\right)
    22 2-2
    22 positives 22 negatives
    When there would be enough counters of the color to take away, subtract.
    53-5 - 3 5(3)5-\left(-3\right)
    8-8 88
    55 negatives, want to subtract 33 positives 55 positives, want to subtract 33 negatives
    Need neutral pairs Need neutral pairs
    When there would not be enough of the counters to take away, add neutral pairs.
  • Subtraction Property
    • ab=a+(b)a-b=a+(-b)
    • a(b)=a+ba-(-b)=a+b
  • Solve Application Problems
    • Step 1. Identify what you are asked to find.
    • Step 2. Write a phrase that gives the information to find it.
    • Step 3. Translate the phrase to an expression.
    • Step 4. Simplify the expression.
    • Step 5. Answer the question with a complete sentence.

The Links to Literacy activity "Elevator Magic" will provide you with another view of the topics covered in this section. ACCESS ADDITIONAL ONLINE RESOURCES
  • Adding and Subtracting Integers
  • Subtracting Integers with Color Counters
  • Subtracting Integers Basics
  • Subtracting Integers
  • Integer Application

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